Izuku Midoriya

Izuku Midoriya ( Midoriya Izuku?), also known as Deku (デク Deku?), is the primary protagonist of the My Hero Academia manga and anime series.

Though born Quirkless, Izuku manages to catch the attention of the legendary hero All Mightdue to his innate heroism and strong sense of justice and has since become his close pupil as well as a student in Class 1-A at U.A. High School. All Might passed on his Quirk to Izuku, making him the ninth holder of One For All.

Info

Appearance

Izuku is somewhat short for his age, his round face framed by a short mess of fluffy dark-green hair which sticks up at odd angles around his head, casting noticeably dark shadows onto itself. His eyes are large and somewhat circular, their irises the same green color as his hair, which at times are very watery, usually stretched quite wide, giving him an innocent appearance. He has a set of four symmetrical freckles in diamond formations, one on each cheek, but despite these prominent traits, he's often described by others as being plain-looking.

Though he was initially very skinny, Izuku has gained toned muscles after his ten months of extensive training with All Might, and as the series progresses, these are shown to become more developed and defined as he gradually grows stronger.

After his battle against Shoto Todoroki, the fingers on his right hand became slightly deformed, and his hand shows scarring. His right arm was further damaged after his fight with Muscular, leaving various other scars all over it. Following his recovery after said fight, Izuku wears a black compression sleeve on the upper portion of his right arm in order to support the heavy damage it sustained: it is partially visible when he wears short sleeves.

During his Junior High School days, he wore a plain black gakuran uniform with yellow buttons, accompanied by white sneakers. While at home, he wears a green jinbei over a white shirt and gray sweatpants.

At U.A., he wears the standard male uniform: a light gray blazer with dark turquoise trimmings over a white dress shirt and dress pants, along with a red tie which he doesn’t do up properly, leaving it much shorter than it should be. Instead of the plain brown shoes worn by the majority of the student body, he usually wears oversized red boots with thick white soles, laced up to the top.

Izuku's original hero costume is a green full-body jumpsuit with a red belt, elbow pads, knee pads, and gloves, along with his signature red boots. He also wears a mask with long ear-like protrusions that resembles All Might's haircut, and a respirator with a makeshift smile on it that also reflects that of the said hero. The costume was severely damaged as a result of his first battle against Katsuki Bakugo and has to be repaired, which is why, during the U.S.J. Arc and My Hero Academia - Save! Rescue Training, Izuku had to wear the U.A. gym uniform. This attire consists of a dark blue high-collared tracksuit with thick white lines over his torso and down his legs, forming the letters “U” and “A,” and along with this, a respirator.

His second hero costume has a few changes and now looks sturdier and more combat-ready in appearance. The knee pads have been extended to his legs and reach up to his thighs, and his new gloves are tinted beige and are decorated with blue stripes. His respirator is now metal, diamond-shaped, and has eight holes. Izuku goes without a mask in his second suit, and although the mask is still present, he doesn't wear it much.

During the Provisional Hero License Arc, Izuku had his costume upgraded again to suit his new fighting move Shoot Style, by adding iron soles to his red boots to increase the power of his kicks. Arm braces were added, and his knee pads now have yellow bolts fastened into them (they were originally added in his second costume in the manga). Sometime later, just before the School Festival, Mei Hatsume creates support gloves to better help him use his powers for long-range attacks. Prior to the Joint Training Arc, Izuku adds the gloves to his hero costume and uses them in combat.

Personality

Izuku is a very timid, reserved, and polite boy, frequently overreacting to abnormal situations with exaggerated expressions. Due to years of being looked down on by Katsuki for lacking a Quirk, he is initially portrayed as insecure, tearful, and non-expressive. These traits are especially present around Katsuki, who also constantly harangued him for his aspirations to become a hero. However, after being accepted into U.A. High School, making new friends, and facing Katsuki during the Battle Trial Arc, Izuku gradually matured into a more confident and brave person who's always eager to prove his worth as a hero, eventually developing strong leadership skills, which, combined with his passion and strategic abilities, have turned him into a central figure within Class 1-A alongside Katsuki.

Izuku is a quite diligent and strong-willed student, being extremely (and sometimes scarily) enthusiastic about topics related to heroes. His dream drives him to write down notes about everything he learns in regards to heroes' Quirks and fighting capabilities. Thanks to this practice, Izuku has developed a great analytical mind and can form complex battle plans in a few seconds, factoring the best ways he can utilize the Quirks of allies and enemies alike for his own advantage.

Izuku externalizes his observations through endless mumbling, a habit that annoys or creeps out his peers. Izuku often writes down those observations in a variety of notebooks he titles as Hero Analysis for the Future, checking on them regularly during school activities or at night.

Izuku is caring and emotional, never hesitating to help or rescue someone in danger, even if he knows that he might not be strong or qualified enough to do it. Often, he does this on instinct, taking a more careless approach than the usual overthinking he goes through and putting himself on peril in order to protect someone.

Izuku is known to help or lecture people with personal and emotional problems, regardless if it's his business or not, claiming that a hero should meddle in other people's lives. This audacious spirit, while initially viewed as perplexing or even insane by others, is also recognized by many, having earned the loyalty and gratitude of characters that were previously antagonistic to him such as Tenya Iida, Shoto Todoroki, Hitoshi Shinso, Kota Izumi, Sir Nighteye and even the Hero Killer: Stain.

He has a strong fascination with heroes and is shown well-versed in their history, sometimes surprising the heroes with his vast knowledge. Of all heroes, the Symbol of Peace All Might has impacted and modeled Izuku's life the most. Many of Izuku's decisions and actions result from his desire to become a Pro Hero similar to All Might, and thus he has a great devotion for him.

Izuku is an avid collector of All Might merchandise, has knowledge of his several feats (no matter how minor) and emulates many of his traits. Having inherited his Quirk, one of Izuku's current priorities is to be able to live up to his idol's legacy, as he is always looking for ways to improve his usage of One For All, being aware of the immense pressure that comes with succeeding the greatest Hero of all time. The unwavering trust and approval Izuku receives from All Might has been vital to his development as a hero, especially when feelings of self-doubt and unworthiness plague his mind.

Izuku appears to have a more brash and abrasive side to him, which typically shows up when he finds himself in combat. This side of him makes him act more like Katsuki, being rather loud and unwavering, and also with a strong drive towards victory. He claims that this is because he sees Katsuki as the embodiment of what someone who strives for victory should be. He has also admitted that he doesn't like this side of him very much and tends to keep it in check.

Powers and Abilities

Overall Abilities: Izuku’s greatest asset prior to receiving his Quirk was his vast knowledge of fundamental hero skills and tactics. Izuku studied Pro Heroes for years and is able to apply that knowledge during crisis situations in a practical manner. His immense bravery and desire to become a hero were also important factors in giving him the mentality to protect others. Before gaining his Quirk from All Might, he took on the Sludge Villain and rescued Katsuki because of his boldness and application of heroic skills, something that deeply impressed the then No. 1 Hero.

Having been trained by All Might for 10 months in order to get his body physically ready to inherit One For All, Izuku gained a muscular physique that lets him perform at parameters higher than that of an average student outside U.A.'s hero course. During the Quirk Apprehension Test, he demonstrated a grip strength of 56 kilograms and the ability to run the 50-meter dash in 7.02 seconds (15.93 mph/25.64 kph).

After inheriting One For All from All Might, he was granted the ability to harness a stockpile of powerful energy. He can move faster than the eye can see and take down an enormous villain bot in a single punch, but the physical backlash at the time prevented Izuku from being able to fight properly or compete with his peers on an even playing field. Even so, he still possessed impressive physical durability, and his drive allowed him to withstand the drawbacks of One For All for the most part.

Despite the intense drawbacks of One For All, Izuku's wits provide him with ways to use One For All that are still effective in battle. He also retains his ability to act instinctively based on his notes and possesses basic hand-to-hand combat knowledge. By applying those correctly, Izuku is able to fight toe-to-toe with even the strongest students of Class 1-A, such as Katsuki and Shoto.

Under the tutelage of Gran Torino, Izuku acquired more control over One For All, leading to the creation of One For All: Full Cowl, a technique that would eventually become a key component of his fighting style. With Izuku gaining greatly enhanced maneuverability, strength, and a significant reduction in the physical backlash created when using his Quirk uncontrollably, he was able to drastically improve his overall fighting capabilities; his newly attained abilities garnered praise from Gran Torino, who noted that Izuku was on a higher level than he was compared to the Sports Festival. This specific improvement enabled Izuku to compete more closely with his classmates in the physical aspects of the Hero Course and even allows him to fight properly against top Villains like the Hero Killer: Stain, who had single handedly bested various Pro Heroes.

As Izuku's mastery over his Quirk improves, so do his practical skills. Also, when his skills and experience increase, so does his confidence, which is said to be a source of inspiration to his classmates as well. His body, however, still remains relatively vulnerable to One For All's drawbacks, which gives Izuku a disadvantage against enemies like Muscular or Overhaul, whose Quirks were proven to be too powerful against One For All's weaker outputs, forcing scenarios where Izuku had to sacrifice his body in order to go all out. In order to protect his own body, particularly his arms, Izuku eventually develops his own unique fighting style, diverging himself further from All Might's.

Currently, Izuku is acknowledged by his classmates as a strong, reliable, leading figure, with both his strength and intelligence being respected equally. However, Izuku's Quirk is still an enigma for them (including Izuku himself), which makes him an unpredictable ally for better or worse. As Izuku keeps growing, so does One For All, and with the prospect of having new abilities unlocked in the future, Izuku has to work even harder in order to fully dominate the Quirk that was passed to him.

Trained Muscles: Usage of One For All requires the user to have strong muscles, as One For All is a lot to handle and could cause the user's body to be blown apart if they don't possess the necessary strength of body.

Enhanced Stamina: Izuku has shown on many occasions that he is capable of handling large amounts of pain. Such times were mostly side-effects of overusing his Quirk and frequently led to various broken bones. Izuku is able to avoid those repercussions by staying in a safe range of One For All power output (currently, this is around 45%).

Should he be forced to output more power, Izuku is still capable of fighting decently even with broken limbs thanks to the effects of adrenaline, but will succumb to exhaustion a while later. Izuku also has to be wary of his arms, which have grown weary due to his repeat injuries and could eventually stop working altogether if he doesn't restrain himself.

Keen Intellect: Izuku has proven to be exceptionally intelligent on many occasions, displaying both keen observation and analysis as well as adept intuition and resourcefulness. His grades are among the highest of his class, showing that his One For All training rarely interferes with his studying. Izuku's intelligence has probably been a more useful asset to him than One For All so far.

Izuku is a quick learner, which has helped him figure out most One For All's mechanisms in a short span of time and work around its limitations. While some of his moves have been directly inspired by All Might (if not, outright copied), the majority of Izuku's moves and techniques were all conceived by him during sudden sparks of inspiration, a proof of his creativity.

Izuku also has extensive knowledge of Pro Heroes, his classmates, and their Quirks, taking notes of them in great detail in his Hero Analysis for the Future. This is fruit of excellent observational skills coupled with his own desires in becoming a hero by learning from the best, meaning that Izuku always has a natural interest in expanding his knowledge further and further.

Izuku is an exceptional strategist and tactician. By combining his aforementioned quick learning and knowledge about Quirks, Izuku is able to devise plans that take advantage of his friends' abilities to the fullest. Izuku's calculations have been crucial at several moments of his school life, allowing him to earn victories (like the Battle Trial), escape dangerous situations (the U.S.J. Incident) and save lives (the Vanguard Action Squad Invasion and Kamino Incident).

His intelligence is greatly respected by everyone in Class 1-A as many of his peers look up to him for planning and follow his strategies to the bottom line. Even Momo Yaoyorozu, the smartest student in class, has looked up to Izuku as reference.

Leadership Skills: As a natural consequence of his bravery and strategic mindset, Izuku has displayed incredible leadership skills on various occasions.

By the start of his U.A. High School life, Izuku had already earned the trust of Ochaco Uraraka and Tenya Iida thanks to his actions in the U.A. Entrance Exam, which was enough to allow him to be voted class representative early on (having relinquished the position to Tenya shortly after). Tsuyu Asui and Minoru Mineta also placed their faith on Izuku during the U.S.J. Incident, following his instructions with little hesitation. By the time of the First Term Final Exam, he had already fought alongside Katsuki and Shoto, who were previously antagonistic to him.

Izuku might not be aware of this, but he is one of the main motivators within his class alongside Katsuki, thanks to a combination of his heroic drive and practical intellect.

Quirk

One For All (ワン・フォー・オール Wan Fō Ōru^?): Transfered to him from Toshinori Yagi, Izuku's Quirk allows him to stockpile an enormous amount of raw power, allowing him to significantly enhance all of his physical abilities to a superhuman level. This results in unbelievable levels of strength, speed, agility, and durability.

Izuku can focus the stockpiled power into a single body part, or spread it across his entire body evenly, though, focusing the power in a single part puts greater strain on that part of his body. He is also able to control what percentage of his full power that he uses. He is currently able to handle 45% of his full power without breaking his bones, with 30% being his normal output.

The Quirk factors of the previous power holders have merged with the core of One For All and have drastically increased in strength since. This grants Izuku the ability to access and utilize the Quirks of the previous holders of One For All. The known Quirks within One For All are:

• Unknown Quirk: The Quirk of the second user. The name and abilities of this Quirk have not yet been revealed.
• Fa Jin (Hakkei): The Quirk of the third user. This Quirk allows Izuku to build up and store kinetic energy as he moves. He can later release this stored energy as an explosive burst of speed and power.
• Danger Sense (Kiki kanchi): The Quirk of the fourth user, Hikage Shinomori. This Quirk allows Izuku to detect threats in the surrounding area. Due to the amplification of One For All, the detection causes a stabbing sensation in his head and it takes a toll on his body.
• Blackwhip (Kuro Muchi): The Quirk of the fifth user, Daigoro Banjo. This Quirk allows Izuku to generate tendrils of black energy from his body that are good for grappling. It is useful for grabbing things from long distances, as well as increasing Izuku's mobility.
• Smokescreen (Enmaku): The Quirk of the sixth user, En. This Quirk allows Izuku to generate a thick cloud of smoke. This smoke can cover a very wide area and obscure peoples' vision.
• Float (Fuyū): The Quirk of the seventh user, . This Quirk allows Izuku to suspend himself in mid-air.

Izuku has also displayed a type of mental connection to the previous holders of One For All.

Super Moves

• Detroit Smash (デトロイトスマッシュ Detoroito Sumasshu^?): The same as All Might's move, except Izuku does it in the form of an uppercut.
• Delaware Smash (デラウエアスマッシュ Derauea Sumasshu^?): Izuku flicks his finger to create a powerful wind pressure shock wave that has enough force to break large chunks of ice. Due to using this attack at 100%, it fractures said finger, limiting the time he can use this move without gravely injuring himself up to ten times.

• One For All: Full Cowl (ワン・フォー・オール フルカウル Wan Fō Ōru Furu Kauru^?): Through his training with Gran Torino, Izuku was able to unlock this stage of his power and get better control of his Quirk. This technique allows Izuku to utilize a percentage of the full power of One For All throughout his body, by letting the power course and flow through him instead of concentrating it in one location. According to Izuku, this technique gives him greater maneuverability. Activating this technique gives him enhanced strength, speed, mobility, and agility. It also prevents him from breaking his bones when attacking. The cost of using this technique reduces the damage of how much his attacks do since instead of centering the power into a certain area, Izuku spreads it throughout his body. Izuku has been steadily improving the upper limits of the percentage of One For All that he could safely use with this technique since its creation. Izuku's initial limits at the time of creating the technique only allowed him to utilize 5% of the maximum output. During Izuku's fight against Katsuki after the Provisional Hero License Exam, he further improved this limit to 8%. Since his battle against Kai Chisaki, Izuku was capable of using 20% without breaking his bones. At the start of Izuku's internship with Endeavor, he described his percentage limitations to be in the interval of 10% to 15% of his full power without any extraneous load and had also stated that he could use 20%, but not without causing immense pain that would majorly hinder his mobility in battle. By the start of the Paranormal Liberation War Arc, Izuku improved this limit to 30% with the extraneous usage limit of 45% of his full power.
  • 5% Detroit Smash (5 パーセント デトロイトスマッシュ 5 Pāsento Detoroito Sumasshu^?): Izuku activates One For All: Full Cowl at 5% then jumps into the air and delivers an enhanced downward punch to the opponent. He has also used this move in the form of a straight, forward-facing punch.
  • Double Detroit Smash (ダブルデトロイトスマッシュ Daburu Detoroito Sumasshu^?): Izuku and All Might combine their Detroit Smashes into a single, devastating charge. They performed this final attack against Wolfram, shattering through a humongous chunk of metal and causing a huge explosion that destroyed Izuku's Full Gauntlet.
  • Delaware Smash Air Force (デラウエアスマッシュエアフォース Deraruea Sumasshu Eafosu^?): Izuku uses his upgraded gloves that Mei Hatsume made for him to direct a blast of compressed air against his foe, possessing enough concussive force to stun Gentle while he was in mid-air, giving Izuku an opening to catch up to him. By using all five of his fingers, he can launch up to four Delaware Smashes simultaneously. It requires 20% of his power to use it effectively.
• One For All - 30%: A technique that allows Izuku to use 30% of One For All in his right arm. This percentage was used in conjunction with Melissa Shield's Full Gauntlet, which nullified any drawbacks to using One For All at higher percentages. Because of this, it is unknown how this state affects Izuku's body under normal conditions. With 30% Izuku was able to effortlessly blow away security bots with vast amounts of wind pressure created by the punch.
• One For All - 45%: A technique that allows Izuku to use 45% of One For All. He's only able to bring this level of power out for a brief period of time; to keep it from wrecking his body he activates it just before the moment of impact.
  • St. Louis Smash Air Force (セントルイス スマッシュエアフォース Sento Ruisu Sumasshu Eafōsu^?): Izuku arches his leg back and performs a strong vertical roundhouse kick, firing a large blast of compressed air.

• One For All - 100%: A technique that allows Izuku to attack using the full power of One For All in the desired part of his body, with the cost of said body part breaking upon execution. Further usage of the same limb after an initial attack can cause scarring, as seen with his fights against Shoto (causing Izuku to get surgery on his right hand due to injuries) and Muscular (leaving multiple scars across his right arm).
  • 100% Detroit Smash (100% デトロイトスマッシュ Hyaku Pāsento Detoroito Sumasshu^?): This move involves Izuku activating One For All at 100% in his arm and then striking his target with a lunging punch.
  • 1,000,000% Delaware Detroit Smash (1000000% デトロイトデラウエアスマッシュ Hyaku-man Pāsento Derauea Detoroito Sumasshu^?): This move is the strongest smash move in Izuku's arsenal, which involves him activating One For All at 100% during an adrenaline rush and then striking his opponent with a full-swing attack. When performing the move Izuku first uses a full-handed Delaware Smash, then delivers a devastating Detroit Smash. During the climax of his battle with Muscular, Izuku managed to overpower and launch his augmented opponent with enough force to create an impact crater in solid rock with the strike alone, thus defeating the villain.
  • Wyoming Smash (ワイオミング スマッシュ Waiomingu Sumasshu^?): Izuku draws out 100% of his power into his arms, then proceeds to spike his opponent on the head, creating a powerful shockwave as a result.  This technique was first used against Tomura during the war on the Paranormal Liberation Front.

• One For All: Full Cowl - Shoot Style (ワンフォーオール フルカウル シュートスタイル Wan Fō Ōru Furu Kauru Shūto Sutairu^?): While using One For All: Full Cowl, Izuku uses a fighting style that focuses more on kicking. Izuku concentrates One for All: Full Cowl's effects in his torso and legs rather than his arms, allowing him to put out even more power due to the fact that the human leg muscles are naturally stronger than the human arm muscles, granting him enough power and stability and allowing him to step away from the shackles of having to imitate All Might.
  • Shoot Style: St. Louis Smash (シュートスタイルセントルイススマッシュ Shūto Sutairu Sento Ruisu Sumasshu^?) While using the Shoot Style, Izuku leaps into the air and before swinging around to deliver a roundhouse kick to the opponent's face. Izuku used this move to incapacitate Gentle Criminal, who had been empowered by La Brava's Lover Mode Quirk to match Izuku's use of One for All: Full Cowl at 8% of its power.
• One For All: Full Cowl - 20%: Izuku uses 20% of One For All's full power and distributes it throughout his body, giving him even greater power and speed boost.
  • Manchester Smash (マンチェスタースマッシュ Manchesutā Sumasshu^?): Izuku leaps into the air and flips forward to bring down an axe kick upon his opponent. Although Kai Chisaki managed to evade it, the attack itself pulverized the ground thoroughly enough that Kai wasn’t able to completely retaliate with his Overhaul Quirk.
• One For All Full Cowl - 30%: A technique that allows Izuku to consistently use 30% of One For All. He was able to utilize this level of One For All near the end of his first year of high school, during the war with the Paranormal Liberation Front.

• One For All: Full Cowl - 100% (ワン・フォー・オール フルカウル 100 Wan Fō Ōru Furu Kauru Hyaku Pāsento^?): Izuku activates One For All to its fullest extent throughout Full Cowl, granting him a tremendous boost in speed and strength that not only rivaled that of All Might but allowed Izuku to easily overwhelm the likes of Kai Chisaki. This was first used against Kai Chisaki to protect Eri. The power increase seemingly gives him fire-like trails coming from his eyes and light-colored hair. He can currently only use it infinitely with no damage done to his body while in physical contact with Eri. Since Eri has the ability to Rewind the state of a person's body, any damage done to Izuku's body by using One For All at 100% would continually be undone by Eri's Quirk which proved useful in his fight with Kai.

• Froppy Style (フロッピースタイル Furoppīsutairu^?): Using Blackwhip, he shoots a tendril out of his mouth and uses it like Tsuyu does with her tongue.
• Full Blast ( Zenkai^?): Using Smokescreen, he activates it at maximum force to unleash a large amount of smoke instantly.
• Pinpoint Focus ( Itten Tokka^?): Using Blackwhip, he quickly shoots a tendril at a specific target to attack them.

• Faux 100 Percent ( 100 Giji 100 Pāsento^?): Izuku draws out 45% of One For All's power, and combines it with the stored kinetic energy generated by Fa Jin. By doing this he is able to draw out the blinding speed of using One For All at 100%, without the recoil that comes with it.
  • Faux 100 Percent: Manchester Smash ( 100 マンチェスタースマッシュ Giji 100 Pāsento Manchesutā Sumasshu^?): Izuku activates Faux 100 Percent, and lands an axe kick on to his opponent at blinding speed.

Equipment

Costume Gamma (コスチューム Kosuchūmu Ganma^?): Following Izuku's decision to change his primary combat technique to Shoot Style, Mei Hatsume upgrades his second costume. New additions consist of improved arm bracers that span the length of Izuku's arms in order to prevent further damage to them and iron soles to increase his kicking power.

• Iron Soles (アイアンソール Aiansōru^?): Created by Mei Hatsume, these Iron Armor Soles attach to Izuku's signature red shoes. Upon kicking something, the soles absorb the impact and redistribute the kinetic energy back out to increase the impact strength of Izuku's kicks. Izuku requested the soles to strengthen his kicks after resolving to change his fighting style.
• Air Force Gloves: Created by Mei Hatsume, these gloves allow Izuku to focus and aim bursts pressurized air that he creates by flicking his fingers. This allows Izuku to to use long-range projectile attacks.

Full Gauntlet (フルガントレット Furu Gantoretto^?): Created by Melissa Shield, it was given to Izuku after she figured out that he was limiting his output of One For All, during the faux villain course at the I-Island Expo. The device allowed him to use his Quirk at higher percentages without the risk of self-injury. The gauntlet was later destroyed at the climax of Izuku and All Might's fight against Wolfram.

Story

Childhood

As a child, Izuku greatly admired heroes and dreamed of being a hero like his idol, All Might, once he got his Quirk. However, by the time children his age manifested their powers, Izuku still showed no signs of developing any special abilities. Due to that, his mother took him to a doctor from whom he received the terrible news that he has two joints on his pinky toe which meant he would never have a Quirk.

Later on, Izuku kept watching videos of All Might that night on his computer and tearfully asked his mother if he could still become a hero. She hugged him and apologized, words that Izuku would remember as not what he wanted to hear because they made him feel inadequate to those with Quirks.

Even so, Izuku still kept aiming to be a hero and to get into U.A. High School. This ambition led him to be constantly bullied and ridiculed by his childhood friend, Katsuki Bakugo, and his classmates, who believed it was impossible for someone without a Quirk to ever become a hero. Despite this, Izuku still considered the two of them to be friends at the time, always following him around.

However, things escalated when Izuku tried to help Katsuki after he fell off a small bridge into a stream. Izuku offered a helping hand, but Katsuki's pride caused him to take this an insult. He believed that Izuku made him appear as if he needed aid from someone who is beneath him. This would strain the relationship between the two for years to come.

Entrance Exam ArcEdit

Izuku is attending class at Aldera Junior High while his teacher announces that all students will graduate this year. Katsuki replies that he is not like the other class members, calling them all fodder and that only he is destined to attend U.A., and he alone will surpass All Might. Once his teacher announces that Izuku is attempting to get into U.A. as well, Katsuki is shocked and furious. He berates Izuku and uses his Explosion Quirk to scare him, claiming that someone who is Quirkless cannot get into U.A. and cannot do anything at all.

After class, Katsuki takes Izuku's hero notebook, burns it, and tosses it out the window. Katsuki tells Izuku that Heroes have had stories about them since their early school years, that only he is destined to reach that school and Izuku is just a stepping stone for his greatness. Before leaving class, Katsuki warns Izuku not to apply to U.A. at all. Izuku leaves the classroom to retrieve his notebook and recollects about how he started dreaming about being a hero as well as how he found out about his status as Quirkless.

The same day, while walking home, a villain fleeing the scene of a crime encounters Izuku. The villain had apparently escaped All Might earlier in the day. The villain decided that to avoid detection, he should take over Izuku's body. Just as Izuku fell into despair, All Might showed up and saved him. Stunned, Izuku asked for an autograph but finds All Might left it for him before he could ask the questions he had on his mind.

In an effort to get All Might to stay, Izuku latched on to All Might's leg and hanged on while he launched himself into the air. After a brief struggle, All Might agreed with Izuku that he would die if he had let go and they soon landed safely on a rooftop. Where Izuku asked if he could become a hero without an individuality. Telling All Might that he always wanted to be a hero and save people.

Suddenly, All Might's appearance drastically changes to a more skeletal form. All Might reveals to the shocked young man that he was injured in a battle five years ago and can only stay in his hero form for a short period of time. He goes on to tell Izuku that professionals must always put their lives at stake to save the day and thus cannot openly say whether it is possible to be a Hero without a Quirk as it may not be possible. All Might says that if Izuku cares about saving people, he can always go on to become a policeman, as in that way he can be responsible for putting the villains in jail (even though it is ridiculing job). He tells Izuku that it is not bad to dream, but warns him not to obscure the facts and then leaves.

Devastated at the words of his idol, Izuku starts reconsidering his dream of becoming a hero. His thoughts are interrupted as he gets near the scene of a villain attack. Izuku recognizes Katsuki as the victim being possessed by the Sludge Villain that had attacked him earlier and feels guilty that he might have accidentally let the villain escape from All Might's possession. Izuku, having looked at Katsuki's pleading eyes, rushes towards the villain, attempting to save Katsuki despite being Quirkless. As the Sludge Villain prepares to attack Izuku, All Might, inspired by the boy's action, shows up and defeats the villain before Izuku could get hurt.

The Pro Heroes at the scene started berating Izuku for his reckless behavior. Katsuki became so mad that he was nearly saved by Izuku, that he caught up to him and told him that he was not saved by him at all before angrily walking away. All Might appeared and thanked Izuku for reminding him what it means to be a hero and then explained that what he did was what most top heroes did in their younger days, this made him tell Izuku that he can become a hero as he offered him the chance to become one.

All Might tells Izuku he is worthy to inherit his strength and that he has the power to transfer his Quirk to people, to the Izuku's shock. All Might then begins to train him at the Takoba Municipal Beach Park by moving large pieces of garbage around, such as trucks, large office drawers, various craters, and bookshelves. He explains Izuku has to train his body to be strong enough to withstand the power of his Quirk otherwise it can result in Izuku losing limbs.

After 10 months of intense training, the day of the entrance exam arrives. At six o'clock in the morning, at the last possible second, Izuku moves the final piece of garbage of the entire beach. All Might is amazed as Izuku cleaned the whole beach and commends him as he cuts off a piece of his hair and gives it to Izuku, who is surprised he has to eat it, receiving his first dose, a very small piece of One For All. However, because the entrance exam is so close, Izuku must hurry to the school without getting used to the power.

Izuku arrives at U.A. for the Entrance Exam, excited that he will be able to have a chance at becoming a hero. As he runs forward and trips, Izuku is saved by a girl's Quirk. The girl says she is nervous and asks if he is as well, to which he replies with a nod. The girl wishes him good luck while Izuku stands there awestruck, having talked to a girl for the first time in his life, even though he actually did not talk to her. Later, during Present Mic's presentation of the exam, Izuku gets called out by Tenya Iida for his endless mumbling, which he considers improper behavior.

As the practical exam is about to start, Izuku gets intimidated by Tenya once again, this time for acting suspicious towards the girl he met before. Tenya berates Izuku which garners attention from the applicants who mumble to themselves how Izuku resembled a failure for his behavior.

During the practical test, Izuku tries to destroy a 1-point robot, but finds himself too afraid to even move. Yuga Aoyama appears and destroys the robot. Izuku realizes that he is running out of time. Suddenly, a huge 0-point robot appears and begins destroying the area.

Izuku tried to run away but then he sees the same girl who helped him before on the ground about to be attacked by the 0-point robot. Seeing her in danger, Izuku mustered up the courage to fight the robot and for the first time, uses One For All and attacks the huge robot with a devastating punch which completely destroys it and saves the life of the girl, while shocking everyone else with his feat.

However, Izuku's bones immediately break due to having never used it before and begins falling. He tries to use Detroit Smash to land safely, but before he could activate it, the girl, whose life Izuku saved, uses her Quirk to allow him to land safely. The practical test is declared over, much to Izuku's sadness as he did not get a single point before he passes out from exhaustion. While unconscious, Izuku is called amazing for taking down the giant robot by his peers who wonder if he was intentionally looking weak, with only Tenya noting how Izuku selflessly protected the girl. Luckily for Izuku, Recovery Girl then heals his heavy injuries almost instantly.

One week later, Izuku receives a letter that will determine whether he was accepted into U.A. or not. Izuku opens the letter in his room and a screen with All Might on it appears. He apologizes for not contacting Izuku earlier and informs him that he will be working as a teacher at U.A. All Might tells him that he did fine on the written test, but that he scored zero points during the practical test. Izuku accepted this and prematurely assumed he failed.

However, All Might tells him that because of his heroic actions during the practical test, he earned 60 rescue points from teachers, meaning he has passed and therefore being accepted into U.A., much to Izuku's joy and happiness.

Quirk Apprehension Test ArcEdit

Izuku, now a student of U.A., talks with his mother before leaving home to his first day at the university. As he arrives at Class 1-A, Izuku hopes not to see either Katsuki or Tenya again, as he enters the classroom. He finds his fears realized as he witnesses both Katsuki and Tenya arguing with each other, much to his frustration. Tenya approaches Izuku apologizing for his treatment and congratulates him on his feat during the Entrance Exam.

Right after, Ochaco arrives at the classroom, with her cheerfulness embarrassing Izuku. While observing the scene, Katsuki recollects about a skirmish he had with Izuku about the results of the U.A. Entrance Exam, with the latter managing to show courage against his longtime bully after being threatened. This is followed by the homeroom teacher, Shota Aizawa, coming into the classroom and explaining to the students about the Quirk Apprehension Test that they must go through.

Shota further explains that whoever gets last place in the test will be expelled from U.A. High, putting massive pressure on Izuku. The students are tested on the power and use of their Quirks through several exercises under Shota's observation, but because of his lack of control over One For All, Izuku is unable to use it in most of the trials, which leads to him performing below the standards set by his classmates. When the time comes for the ball pitch trial, Izuku, left with no choice, tries to throw a ball as far as he can using One For All, but Shota stops him by erasing the Quirk. Izuku recognizes him by his goggles and powers as the hero Eraser Head.

Shota tells the student that, with a Quirk like One For All, Izuku will be nothing but a burden by putting himself in danger several times, and that if he does not find a way to prevent One For All from massively crippling his own body, Izuku's future as a hero will be put in jeopardy. Shota then allows Izuku a second chance for the pitch trial. Keeping Shota's words in mind, Izuku powers up only the end of one his fingers and launches the ball at a considerable distance. He shocks his class with this display as he tells his teacher he is still standing as Shota is impressed with his feat.

Dumbfounded by this new development, an angry Katsuki menacingly rushes towards a nervous Izuku in order to question him about his sudden Quirk, but Shota stops him with his Capturing Weapon before a conflict can start. Izuku, because of his broken finger, underperforms through the remaining tests, eventually getting last place. However, after showing the results of the test, Shota reveals that he lied about the expelling in order to motivate the students to give their all, calling it a logical ruse, much to Izuku's shock.

While Shota is leaving, he sees All Might, who tells Shota that he knows that he was actually planning to expel last place from U.A. All Might then concludes that Shota sees the same potential in Izuku that All Might sees. Shota shrugs off All Might's words and says that the chance of Izuku becoming a great hero is higher than zero, and that he does not see anything more than that, claiming to expel Izuku if he sees his chance ever fall below that mark.

At the end of the day, Izuku is joined by Ochaco and Tenya, with the newly formed trio walking back home together, where Ochaco tells Izuku that his insulting nickname of Deku, given by Katsuki, sounds like the Japanese word for "you can do it," causing him to adopt the nickname, to Tenya's surprise. Izuku explained his views of his name has just changed.

Battle Trial ArcEdit

As the Heroics class starts, All Might tells all students to wear their Hero Costumes and head to Ground Beta. Izuku reminisces about the time he had to order a costume of his own. It turned out that Izuku's mother had made the costume herself by hand after looking through some of her son's annotations, feeling guilt for previously not believing that Izuku could become a hero and promising to always cheer for him from now on. Wearing said costume proudly, Izuku stepped into the training field.

Izuku gets teamed up with Ochaco and is tasked to stop a team composed of Katsuki and Tenya from blowing up a fake nuclear bomb. They successfully infiltrate the building and look around the corners to see if anyone was coming, where Katsuki ambushes them. Izuku manages to save Ochaco from Katsuki's attack, but half of his mask is burned off in the process.

As Katsuki is about to attack him again, Izuku intercepts him, grabs his right arm and throws him to the ground, knowing that he would use his right arm to attack. Izuku tells the surprised Katsuki that he memorized his moves, as the same notebook Katsuki blew up and threw away in the past contained notes of heroes he has analyzed which include him. Izuku announces that he is no longer the "Deku" who was a loser, but the "Deku" whose vibe is never giving up, much to Katsuki's fury.

Izuku tells Ochaco to go on ahead while he fights Katsuki who tries to attack him again. Having predicted that, Izuku evades and manages to grab Katsuki's leg with the Capture Tapes, but Katsuki breaks free using an Explosion. Knowing he is at a disadvantage, Izuku retreats in order to think of a plan and contacts Ochaco to learn about her location for the strategy. Katsuki searches for Izuku, angrily voicing that Izuku was intentionally hiding his Quirk from him. Eventually, Katsuki finds him and attacks Izuku with a great empowered Explosion move provided from his Grenadier Bracers. Izuku survives and calls Katsuki insane for doing that, but a seething Katsuki demands that Izuku use his Quirk.

Izuku and Katsuki continue their fight, with Katsuki overpowering him, although Izuku manages to hold his own. Izuku concludes that Katsuki is stronger than he is. Izuku decides to use his Quirk and informs Ochaco to grab onto something. Instead of hitting Katsuki, Izuku aims his Detroit Smash into the ceiling, destroying the ground of every floor above them, including the one Ochaco and Tenya are on, but Izuku is forced to take the full brunt of Katsuki's Explosion. Although Izuku was unable to defeat Katsuki, it did distract Tenya long enough for Ochaco to grab the fake Nuclear Bomb, allowing both Izuku and Ochaco to win.

Izuku is then taken away on a stretcher to have his wound attended to by Recovery Girl. After spending most of the day having his wounds healed, Izuku returns to his classroom. As he enters, Izuku is commended by many of his classmates for his performance during the battle trial. Ochaco asks him if he is alright, to which he replies that he is fine. Izuku then asks her where Katsuki is.

Although many of his classmates try to stop him, Izuku goes to find Katsuki. After Izuku finds him leaving school, Katsuki accuses him of coming to gloat. Izuku instead tells him his secret: that he obtained his Quirk from someone else in order to convince him that he had not been deceiving him but the latter does not believe it and swore to defeat him.

U.S.J. Arc

Izuku is confronted by a reporter from the media, asking him questions about All Might, but Izuku makes an excuse to escape from the reporter. In class, Shota Aizawa makes a remark about Izuku's performance in the battle trial and encourages him to work harder. Afterwards, Izuku is elected as Class President after the class votes, much to his shock.

In the lunch room, Izuku is unsure if he is the right one for the task, but Tenya assures Izuku that he is as he voted for him. Izuku then learns that Tenya is from a prestigious family of super heroes and that Tenya is the brother of Ingenium. As they continue talking, the siren goes off and everyone begins evacuating. After Tenya stops the chaotic evacuation, Izuku returns to class where he decides to step down as Class President and give the position to Tenya, deeming him more worthy of the position than him which is well received by everyone.

In a flashback, Izuku is seen speaking to All Might telling him that he revealed to Katsuki about the secret of the One For All Quirk. However, All Might is not angry about it since Katsuki interpreted it as nonsense and tells Izuku to continue keeping the secret to himself and no one else. In the present, Izuku changes into his gym clothes (since his Hero Costume was tattered during his battle with Katsuki in the battle trial) in preparation for the rescue trial.

On the way to the U.S.J., Tsuyu compares Izuku's Quirk to All Might's, which worries him although Eijiro Kirishima dismisses Tsuyu's claim since Izuku's Quirk hurts him unlike All Might's Quirk. Izuku then watches as the rest of Class 1-A make fun of Katsuki, which contrasts to their time in Junior High. They soon arrive at the U.S.J. and listen to Thirteen's speech. Izuku applauds No. 13.

Suddenly, actual villains soon attack the U.S.J. which shocks Izuku. Shota goes to hold off the villains though Izuku tried to warn him that he couldn't but is amazed to see his teacher hold his own against the villains. Tenya then gets his attention by telling him to evacuate with his class. However, he is suddenly warped away by Kurogiri to the flood area of the Ultimate Space and Jams.

Sent to the shipwreck zone, Izuku falls in the water where he was about to be attacked by a shark like villain who prepared to devour him, but Tsuyu saves him and throws him onto a boat along with Minoru. Izuku thanks her for saving him. Izuku then wonders about the villains' goal and then decides that their goal now is to fight.

Izuku says that Tsuyu was teleported (along with him and Minoru Mineta) to an area (the flood zone) that allows her to be at full strength thanks to her Frog Quirk, and then deduces that the villains do not know what their Quirks are. He then says that although the villains beat them in sheer numbers and experience, the one advantage they do have is the element of surprise (their Quirks as the villains do not know about them). Izuku concocts a plan to defeat the villains and escape, and after telling Tsuyu and Minoru, Izuku uses Delaware Smash on the water while Minoru throws his sticky substance. The spread out water converges in the center along with Minoru's sticky substance (with the villains being pulled in), causing all the villains in the water to be stuck together by Minoru's Quirk. Izuku then escapes along with Minoru and Tsuyu, with Tsuyu saying that he was impressive.

After that Izuku rambles that could have been dangerous, Tsuyu cuts him off and he says that their priority is to call for help, that they can take the waterside to the exit, but after remembering that Shota is at the central plaza fighting a large group of villains, Izuku decides that they should head to the central plaza and try to be of some assistance to Shota. However, after reaching the central plaza, Izuku is horrified to see Shota's condition after he is defeated by a monstrous villain.

Izuku is surprised to hear Tomura Shigaraki announce that they are retreating and wonders why they came for nothing. However, this train of thought is quickly interrupted as Tomura attempts to disintegrate Tsuyu but Shota uses his last bit of strength to nullify Tomura's Quirk, saving his student. Izuku then uses the opening in an attempt to save Tsuyu by attacking Tomura. He uses smash on him, but this time, Izuku does not suffer from recoil.

However, the attack was intercepted by Nomu, who is not fazed as Izuku realizes Nomu is the secret weapon against All Might. Nomu grabs Izuku's arm, but Tsuyu wraps her tongue around him. Suddenly, All Might appears, much to Izuku's happiness. Izuku is then rescued by All Might along with Minoru, Tsuyu and Shota. All Might tells the students to take Shota to safety while he faces the villain.

After seeing All Might in a bad position, Izuku decides to help him, but he is nearly warped but Kurogiri though Katsuki's attack stops him. Izuku is then joined by Shoto and they hold down Kurogiri until Nomu attacks them to save the villain but All Might protects Katsuki even Kurogiri was freed.

Izuku then watches the battle between All Might and Nomu and worries for him as he was the only person who knows about the latter's time limit.

After Nomu's defeat, Tomura and Kurogiri attempt to finish off All Might, but Izuku intervenes their attempt by running in front of All Might to protect him. Izuku's intervention gives the Heroes enough time to reach the U.S.J., forcing Tomura and Kurogiri to stop their attempt.

After Tomura and Kurogiri retreat because of the arriving heroes and No.13's attack, Izuku is seen on the ground, crying, as he was unable to do anything to help. However, All Might tells him that is not the case; because if Izuku did not intervene, he would have been dead and thanks him for saving his life. Afterwards, Izuku is taken to U.A.'s infirmary to have his injuries attended to.

U.A. Sports Festival ArcEdit

The next day, Izuku listens to Shota's announcement about U.A. Sports Festival. After end of the fourth period, Izuku and Tenya listen to Ochaco's reason for becoming a heroine and her history, to which Izuku replies that with her Quirk, she would be able to build for free. After the discussion, All Might arrives asking Izuku to have lunch with him. In the resting room, Izuku tells All Might that he is adjusting to his Quirk, which pleases All Might. All Might asks Izuku to show the world at the sports festival that he is the next generation's "All Might".

However, Izuku is unsure if he is up to the task; All Might assures Izuku that he is not forcing him and asks him to remember is feelings during his training at the beach park. During the two weeks before the sports festival, Izuku trains himself.

On the day of the Sports Festival while Class 1-A prepares, Shoto Todoroki approaches Izuku, telling him that he is stronger than him and will defeat him. Izuku admits that Shoto is indeed stronger, but since everyone is giving it their all, Izuku will also give everything he has got. He then walks out to the sports festival with his head up high, stating to himself that All Might can retire.

Once the Obstacle Course Race begins, Izuku manages to get through the narrow gate while avoiding Shoto's ice. Izuku sees that there are robots in front of him and decides that now is the time to put his head to use, no longer shaking in fear unlike in the U.A. Entrance Exam. Izuku grabs a metal plate and severs a robot's head with it by using the robot's momentum. Izuku passes the Fall, but soon sees that he is far behind. Izuku gets on the metal plate and blasts himself towards the lead using the landmines he had collected.

In the lead, Izuku sees that Katsuki and Shoto are on his tail using the two as balance, Izuku slams the plate on more landmines. This launches him once more and blows dust in their eyes, stunning them. Taking advantage of this, Izuku runs ahead and crosses the finish line in first place which allowed him to advance to the second event of the Sports Festival, which is a Cavalry Battle. Izuku then finds out that he is worth 10 million points for the Cavalry Battle, because he got first place on the Race Course, which horrifies him as now he is a prime target.

Because of his value, Izuku has trouble finding teammates, but then Ochaco decides to team up with him, which makes him happy. Izuku then tries to team up with Tenya as he has great synergy with Ochaco's Quirk but he politely declines, much to Izuku's disappointment. Mei Hatsume decides to team up with Izuku as she would be recognized for being on his team, due to his rank. Izuku decides on a final team member and chooses Fumikage Tokoyami.

The event begins and Izuku's team is attacked by Team Tetsutetsu and Team Hagakure but thanks to Mei's gadgets and Fumikage's Dark Shadow, they manage to thwart their attacks. The team takes to the air, but they are suddenly attacked by Katsuki. Fumikage uses his Dark Shadow to block Katsuki's attack and the team lands on the ground. Izuku says that they should have an easier time now, but takes those words back when they are confronted by Shoto and his team.

Denki unleashes a large amount of electricity which Fumikage's Dark Shadow protects them from. Izuku and Shoto's team battle with neither team having the advantage. In a surprise twist, Tenya uses his Recipro Burst, allowing Shoto to take his 10 million headband in an instant, shocking Izuku. Izuku becomes distressed but thanks to Ochaco's encouragement, Izuku remembers that his teammates fates are in his hands and decides to attack Shoto with One For All as a symbol of their unity.

Izuku uses One For All to blow wind pressure at Shoto which distracts Shoto and allows Izuku to take a headband. However, Izuku took the wrong headband and his team fights Shoto's team for the last ten seconds. The event ends and Izuku becomes depressed. Fumikage reveals that he took a 615-point headband during Izuku's scuffle with Shoto which allows his team to move on to the last event. with Izuku crying in happiness. After the lunch break begins, Izuku is seen with Shoto in private in a hallway, with Izuku asking what is it that he wanted to talk about.

Shoto asks whether Izuku is an illegitimate child of All Might or not, but Izuku states that is not the case. Shoto then tells Izuku about him; that he was conceived from a Quirk Marriage so that his father, Endeavor could raise him to be a hero that surpasses All Might; in the past, his mother threw boiling water on him because she despised his left side and that he will surpass Izuku without using his fire power as a way of disavowal-ling his father. Shoto's story leaves Izuku shocked and speechless. Although their goals are different with his goal being trifling compared to Shoto's, Izuku says he cannot let down the people who have helped him get so far and declares that he will defeat Shoto.

The final event is a tournament event and Izuku's opponent in the first round is Hitoshi Shinso. When Hitoshi approaches Izuku, Mashirao Ojiro warns Izuku not to respond to his provocations. During the recreational events, Mashirao gives Izuku advise on Hitoshi's Quirk. Before the first fight begins, All Might goes to see Izuku and advises him to smile in the face of anxiety and fear. A confident Izuku steps out to the ring to confront Hitoshi. After Hitoshi calls Mashirao an idiot for throwing away the opportunity to participate in the tournament, the fight begins and Izuku, who is angered by Hitoshi's insults, attacks him, but mysteriously stops moving.

Izuku finds himself to be completely immobile, but when Hitoshi orders him to go out of bounds and starts walking towards the exit of the ring. Still conscious, he tries to stop himself but finds that his body is moving on its own. As Izuku is about to reach the out of bounds of the ring, he has a hallucination and sees eight shadowy figures which causes Izuku to attack himself with One For All, allowing him to break free of Hitoshi's control. Izuku hypothesizes that the people he saw were those who had One For All before him. Izuku ignores Hitoshi's provocations and attacks him. After a brief struggle, Izuku throws Hitoshi over his shoulder and rings out Hitoshi, causing Izuku to move on to the second round.

Immediately afterwards, Izuku asks Hitoshi about his goal, to which Hitoshi states that he wants to end the discrimination against his Quirk by entering the Heroics Department and becoming a Hero. Before leaving, Hitoshi warns Izuku to be weary of him. Izuku then heads to Recovery Girl's infirmary to have his wound attended to.

After his wounds are fixed, Izuku tells All Might about the shadowy figures he saw; All Might hypothesizes that the shadowy figures he saw were the imprints of people who had bared the One For All Quirk. All Might advises Izuku to go and watch the next match. Izuku sits next to Tenya and Ochaco who saved a seat for him. When Shoto freezes Hanta, creating a huge ice glacier in the process, Izuku watches in shock and horror. When Shoto unfreezes Hanta with his fire power after winning, Izuku notes that what he saw seemed immensely sad.

Izuku then watches the other matches, writing down notes on his opponents, such as counter strategies. Ochaco sees this and is impressed with him. Izuku visits Ochaco inside the waiting room and offers a strategy against Katsuki. However, Ochaco politely turns down his offer, thanking him for offering a strategy for her, claiming she will be all right and they will meet at the final match. Izuku, along with Tenya, go to their seats in the stadium to watch the match.

Tenya asks Izuku what his counter strategy for Katsuki was, to which Izuku replies that the strategy involved striking fast to gain the advantage. Izuku watches the match and becomes worried when Ochaco gets hit by Katsuki's explosions. After Ochaco collapses and is declared the loser of the match, Izuku expresses sadness.

Izuku leaves his seat and walks away. Along the way, he encounters Katsuki and congratulates him on winning his match. Katsuki accuses Izuku of giving Ochaco strategies, but Izuku denies this and boldly states that Ochaco used strategies on her own accord, much to Katsuki's anger. Izuku visits Ochaco to see if she is alright. Wanting to be by herself, Izuku leaves the room and walks to his next match. Suddenly, Izuku runs into Endeavor. Endeavor tells Izuku to give Shoto a good matchup. Before Endeavor leaves, Izuku states that he is not All Might and Shoto is not Endeavor.

The match begins and Izuku prepares to charge. Izuku manages to barely hold off Shoto's ice attacks with One For All wind pressure, but breaks two of his right hand's fingers as a result. However, Shoto is still able to close in on Izuku several times. After seeing Izuku's injuries, Shoto decides to end the match and sends a wave of ice, but Izuku sends a blast of wind pressure against Shoto's ice with his broken right hand, destroying the ice. Izuku knows of Shoto's limit and berates Shoto for only using half of his power to win while everyone else is giving it their all. Izuku clenches his broken right hand into a and orders Shoto to face him man to man.

An enraged Shoto runs toward Izuku to face him head on, but Shoto's frostbite affects him, allowing Izuku to hit Shoto with an One For All enhanced punch, knocking Shoto down onto the floor and slightly injuring him. However, Izuku is hit by Shoto's ice in the process of punching him. Shoto manages to get back up and launches another wave of ice but Izuku uses One For All's wind pressure to shatter the ice with ease.

The battle becomes easier for Izuku due to Shoto's frostbite weakening him. Shoto wonders why Izuku is going so far, to which Izuku replies that he wants to thank the people for helping him get so far and wants to be a super cool Hero like All Might. Izuku once again berates Shoto for using only half of his power and mocks Shoto's disowning goal. Izuku hits Shoto again. After Shoto gets back up, Izuku tells Shoto that the fire power he has is his power and not his father's. Shoto, moved by Izuku's words, activates his fire power and states to Izuku that he too will become a hero, causing Izuku to crack a smile, happy to see his opponent finally giving it his all like himself.

Izuku and Shoto power up for one final clash. Izuku's wind pressure and Shoto's heat blast create a huge shockwave. After the smoke clears, Shoto is still in the ring but Izuku is out of the ring. Izuku's grievous injuries makes him fall to the ground. Thus, Izuku is eliminated from the tournament event. Inside Recovery Girl's room, Izuku asks All Might for his forgiveness since all he wanted to do was help Shoto overcome his misery. All Might tells Izuku that his match was simply an unfortunate outcome but praises Izuku for helping Shoto with his problem, saying that reaching out and helping people with their personal problems is one of the principal qualities of being a Hero, happy that Izuku has such a quality.

Izuku receives surgery from Recovery Girl, which heals his wounds. After the surgery, she warns Izuku to not abuse his Quirk again. Izuku leaves Recovery Girl's room with All Might and they walk down the corridor. Izuku admits to All Might that someone else is better deserving of One For All than him. However, All Might reveals that he too was Quirkless, surprising Izuku. All Might encourages Izuku by saying that only he can truly shine with One For All. Izuku goes to the stadium where Katsuki and Eijiro are battling. Izuku talks with Tenya who tells Izuku about his fight with Ibara and how he won. After Katsuki defeats Eijiro, Tenya leaves for his fight. After watching the fight, he becomes saddened that Tenya lost.

Izuku, along with Ochaco and Tenya, watches the match between Fumikage and Katsuki. Izuku notes that if Katsuki did not find out about Fumikage's weakness, Fumikage would stand a better chance at winning. After the match between Fumikage and Katsuki ends, Izuku wonders how the final match between Katsuki and Shoto will turn out.

Both Izuku and Ochaco agree with Tenya about watching the final match closely for revenge later. Izuku watches the final match between Katsuki and Shoto. During the match, Izuku yells at Shoto to keep fighting.

Izuku watches the closing ceremony of U.A.'s Sports Festival. Tenya told him about what happened to his brother and that he had to leave the sports festival; Izuku wishes for Tenya to be safe. After the sports festival is finished, the next day at his home during breakfast, Izuku and his mother talk to each other with Izuku saying that she almost had a rougher time than she did. Izuku's mother is happy about Izuku's Quirk although she is at unease about its risky recoil but nevertheless she will keep cheering Izuku on. Izuku decides that he must find a way to control One For All properly. Izuku's mother asks if he wants to watch a recording of U.A.'s sports festival, to which Izuku replies that he will later on.

Vs. Hero Killer Arc

Two days after the sports festival, Izuku is on a train to U.A. While on the train, some of the passengers recognize him from the sports festival, acknowledging his prowess. At U.A., Tenya is running and passes by Izuku, telling him that they should be at least 10 minutes earlier for school. After arriving inside, Izuku sees Tenya and remembers that recently his older brother Tensei had been seriously injured by a villain named Stain. Izuku tries to talk to Tenya, but he tells Izuku that he does not have to be worried about his older brother as he will be fine and apologizes for causing him unnecessary concern.

In class during the Hero Informatics period, Class 1-A must decide on hero names. Izuku thinks of using names similar to All Might's name, but he wants to be more original and eventually picks a perfect name. Izuku is the last student to reveal his name; the class asks him if he is sure, to which Izuku replies that he did not like the name at first, but someone came along and changed the meaning of the name, making him happy. Izuku reveals his hero name to be "Deku". After Class 1-A is finished formulating their Hero names, Izuku is given a list of 40 work places he can choose from so that he can train from one of them.

After the class period, All Might meets Izuku and tells him of a nomination from a person called Gran Torino, the friend of All Might's predecessor. All Might advises Izuku to choose Gran Torino for his workplace training as he will be able to advise Izuku on One For All usage, thus Izuku decides to go to Gran Torino for his training. At the train station, Izuku tells Tenya if he has any problems he can talk to him and Ochaco about it, to which Tenya replies that he will.

Izuku arrives at Gran Torino's address and enters his apartment, frightened to find Gran Torino apparently dead. Then the hero suddenly gets up saying that he is not dead, shocking Izuku in the process. Izuku finds Gran Torino to seemingly be a foolish and senile old man and prepares to leave, disappointed. Suddenly, Gran Torino jumps towards the door and reveals he was merely putting up an act as he tells Izuku that he cannot stand to see how Izuku uses his Quirk and tells him if he wants to learn more about One For All, then he should stay and put his hero costume on.

Seeing the man's real persona , Izuku compares it to All Might's and realizes he is indeed the latter's teacher. He accepts the man's offer to train. Izuku puts on his hero costume (which has not only being repaired but redesigned as well). He and Gran Torino have a mock battle, but Izuku is not able to keep up with Gran Torino's speed. After the mock battle finishes, Gran Torino gives a hint about Izuku's problem with One For All; that he thinks it is special. Izuku ponders about Gran Torino's hint and realizes that Quirks are simply body functions with One For All being no different. Izuku writes this discovery down in his notebook.

During the night on his first day, Izuku steps out of Gran Torino's apartment and goes to an alley in order to test out One For All by thinking of it as a simple body function. Izuku continues his practicing until morning. At breakfast, Izuku ponders why he still cannot gain control over One For All. After a new microwave arrives and Izuku fails to cook the taiyaki properly, Izuku realizes his next problem; that he has only been using One For All in one section of his body and not letting it flow throughout his body. Izuku activates One For All throughout his body and asks Gran Torino to test him.

Izuku battles Gran Torino while One For All flows throughout his body. This time, Izuku is able to keep up with Gran Torino, but Gran Torino decides to get serious and strikes Izuku. After the battle, the elderly Hero notes to himself that Izuku has dramatically changed in such a short space of time and compliments Izuku for being able to graze him (a cut is shown on Gran Torino's face) even though he was using his own power earnestly. Gran Torino states Izuku that he must get used to using One For throughout his body and informs him that they will continue training after breakfast. After breakfast, Izuku continues his training with Gran Torino.

Izuku continues his training in gaining proper control of One For All with Gran Torino for two days. It is the third day at 5:00 PM, Izuku is on the floor injured due to his training. Gran Torino decides to end Izuku's training in One For All, not wanting Izuku to become stale due to fighting him all the time. Izuku protests but Gran Torino denies Izuku's request to continue training in One For All. Gran Torino declares that they will move on to phase two which is workplace experience.

Izuku cleans himself up and puts on his hero costume. Izuku and Gran Torino leave the apartment. Gran Torino and Izuku leave on a train for Shinjuku. The train passes Hosu City. On the train, Gran Torino tells Izuku that they will be fighting villains since they appear at night. Suddenly, the train experiences an emergency stop and a Pro Hero comes crashing into the train, much to Izuku's and Gran Torino's shock.

Immediately afterward, a creature that looks similar to Nomu appears. Izuku tries to take action, but Gran Torino orders Izuku to stay put. Gran Torino jumps from his seat and slams himself into the Nomu-like creature, smashing the creature and himself out of the train and into the air above Hosu. Izuku goes to check on Gran Torino but sees that a part of Hosu has been set ablaze. Izuku wonders what is transpiring and starts worrying about Tenya's safety.

Izuku exits the train and starts running towards Hosu. In Hosu, Izuku witnesses the battle between the Pro Heroes and the two Nomu-like creatures. Izuku is surprised that Tenya is not at the battle and starts pondering. Izuku quickly figures out that Tenya came to Hosu to find and hunt down the Hero Killer: Stain. Izuku leaves the battlefield and searches for Tenya. Izuku manages to find Tenya in an alley where he is on the ground injured and Stain is about to kill him. Izuku activates One For All throughout his body, dashes at great speed, and punches Stain in the face, preventing the Hero Killer from finishing off Tenya. Izuku announces his arrival and declares that he came to save Tenya.

Izuku asks Tenya if he can move, but Tenya tells Izuku that he is immobilized. Stain praises Izuku for his efforts and then threatens Izuku. Izuku decides that he must protect Izuku and the injured Pro hero. Tenya tries to dissuade Izuku from fighting his battle. Izuku puts on a brave face and says that getting involved in other people's business is one of the principal qualities of a Hero, causing Stain to smile.

Izuku and Stain begin their battle; Izuku activates One For All Full Cowl and briefly fights Stain. Izuku's enhanced speed manages to allow him to avoid Stain's powerful strikes and attacks Stain from above with 5% Detroit Smash. However, Izuku's move does not do anything and Stain immobilizes Izuku with his Quirk. Stain, impressed with Izuku's actions, decides to spare Izuku but prepares to kill both Tenya and the Pro Hero Native. Izuku yells at Stain to stop but to no avail. Suddenly, two columns of fire and ice attack Stain but he manages to avoid the attack in the nick of time. Shoto reveals himself and tells Izuku that he texted him more information than usual and came running. Izuku is surprised that Shoto showed up.

Izuku asks Shoto why he is here and is shocked that Shoto is using his fire power. Izuku watches Shoto's battle with Stain; Izuku warns Shoto to not let Stain get his blood. Stain jumps into the air and prepares to stab Shoto with his katana. Izuku realizes that he can move and activates One For All: Full Cowl. Izuku, using enhanced jumping speed, appears before Stain and grabs him, attempting to throw him onto the ground. The Hero Killer retaliates by knocking Izuku away with his elbow, causing Izuku to fall onto the ground. Izuku informs Shoto that Stain's Quirk allows him to immololize people depending on blood types for a certain amount of time, earning praise from Stain. Izuku and Shoto team up. Izuku attacks but Stain easily strikes Izuku, licks his blood and immobilizes him; Izuku apologizes to Shoto.

Before Stain attacks, Tenya breaks Stain's katana and rescues Shoto; he apologizes to Izuku. As Shoto and Tenya battle Stain, Izuku is able to move again. Izuku and Tenya team up and attack Stain with their enhanced punch and kick respectively.

Stain makes one last ditch attempt to kill Tenya but Shoto attacks Stain with his fire, causing him to lose consciousness. Izuku, Tenya and Shoto remove Stain's weapons. The three along with the injured Pro Hero leave the alley with Stain in tow. Gran Torino appears and berates him for not following his orders. Tenya apologizes to Izuku, although Izuku admits that he should have been more of a friend. Suddenly, the winged Nomu appears and grabs Izuku. Suddenly, Stain awakens, frees himself and kills the winged Nomu as well as saves Izuku. Izuku is shocked at Stain's action.

After Endeavor arrives, Izuku tries to break away from Stain. Stain's bandaged mask falls off and reveals his true face, shocking Izuku. Stain walks forward and declares that the only one who is allowed to kill him is All Might, unleashing a bloody malefic aura in the process. Izuku becomes terrified and unable to move due to the fear. After Stain loses consciousness for the last time, Izuku along with Shoto and Tenya are taken to the Hosu General Hospital to have their wounds treated.

The next day at Hosu General Hospital, the Chief of Hosu Police, Kenji Tsuragamae appears to talk to them. Kenji tells Izuku, Shoto and Tenya that the Hero Killer is undergoing treatment. Tsurugamae states that Izuku, Tenya and Shoto must be punished along with their mentors for not being with them. However, Tsurugamae tells them that the event that transpired with Stain will be covered up due to a limited amount of witnesses. Kenji states that Izuku along with Shoto and Tenya have a promising future and thanks them for their heroic actions.

Izuku gets a call from Ochaco who asks him about his injuries, to which Izuku states that he is fine. After the phone call, Izuku is excited at talking to a girl on the phone. Soon Tenya tells Izuku that his left hand will not work properly and has decided not to get surgery because he wants his injury to remind him of his mistake at Hosu. Tenya and Izuku resolve to become better Heroes. Izuku along with Tenya laugh with Shoto after they believed Shoto cracked a joke about people's hands going bad whenever he is around.

At the end of the week, workplace training comes to an end. Outside Gran Torino's apartment, Izuku thanks Gran Torino for looking after him; Izuku praises Gran Torino for his training as it has allowed him to become stronger. Gran Torino advises Izuku to maintain his control and composure when using One For All and to not go over the 5% limit. Izuku wonders why no one in the Hero society knows about him, to which Gran Torino states that he was never interested in the life of a Hero. Before leaving, Izuku tells Gran Torino his Hero name, making Gran Torino smile. Izuku returns to U.A. and in Class 1-A, Tenya states his resolve to become a Hero anew, Izuku smiles.

Class 1-A has Foundational Hero Studies next; All Might says that their lesson will be a rescue training race through Playing Ground Gamma (an industrial site with many densely packed lanes which makes it look like a labyrinth). Izuku, along with Mashirao, Tenya, Mina Ashido and Hanta Sero are the first group that will be racing each other to reach All Might. The race begins; with Izuku activating One For All Full Cowl: 5% and begins leaping and running through the site with ease while outpacing the others to get the lead. All Might and a majority of Class 1-A are greatly surprised and amazed by Izuku's extraordinary movements and better control of his Quirk since they had previously counted Izuku out. As Izuku leads, Katsuki is shocked that Izuku's movements in combat have become similar to his own, angry that Izuku has improved so much.

Izuku focuses on keeping calm and his power level steady, however his foot slips from a small pipe and he falls into a painful face plant. After Hanta wins, Izuku remarks that he still has much to learn and that he will have to remember to take more care with where he jumps to. All Might approaches Izuku and is impressed with him; he asks Izuku to meet with him so that he can tell him about One For All's history.

After Foundational Hero Studies is finished, Izuku heads to the boys' locker room to change into his school uniform. While changing, Izuku wonders why All Might was so serious.

Afterwards, Izuku meets with All Might in the Break Room. All Might tells Izuku to lock the door and then apologizes to Izuku for not being at his side during the Hosu incident, to which Izuku replies that he does not have to apologize. All Might reveals that Izuku's One For All Quirk was not stolen by Stain which is because One For All can only be passed on when the user wishes it. All Might tells Izuku about One For All's origin; originally, a man who was Quirkless was given a power storing Quirk by his evil older brother whose Quirk stole and passed on Quirks.

Unbeknownst to the older brother, the younger brother had a Quirk which could transfer, thus the younger brother's transfer Quirk and the power storing Quirk mutated and became One For All. However, the younger brother could not defeat his evil older brother and passed on One For All onto successors until it was strong enough to defeat his older evil brother. Eventually, One For All was passed onto All Might and he used it to defeat the evil older brother.

However, the evil older brother has returned, thus Izuku will face him in battle when the time comes. All Might apologizes for giving Izuku so much information. Izuku says that whatever task All Might gives him he will accomplish no matter what as long as All Might is by his side. All Might thanks Izuku. Back in class, Shota reveals that Class 1-A will be going to a forest lodge during the summer break.

Relationships

For relationships, see here.

Major Battles

• Izuku Midoriya, Sora, Katsuki Bakugo, Minoru Mineta, Hanta Sero, Momo Yaoyorozu, Mashirao Ojiro, Koji Koda, Tsuyu Asui, Tenya Iida, Denki Kaminari, Yuga Aoyama, Ochaco Uraraka, Eijiro Kirishima, Rikido Sato, Kyoka Jiro, Mezo Shoji, Fumikage Tokoyami, Shoto Todoroki, Toru Hagakure, and Shota Aizawa vs. Red Guy, Bendy, Slappy, Bowser, Berry, Camille Leon, Dan Backslide, Edzilla, Judge Doom, Jack, Kenneth, Mal, Oogie Boogie, Wanze, Me-Mow, Papu Papu, and Dr. Screwball Jones: Interrupted
• Izuku Midoriya vs. Sora vs. Pit vs. Rex Salazar vs. Bendi: Loss
• Izuku Midoriya, Sora, Monkey D. Luffy, and Bendi vs. Big Yellow, Icy, and Bendy:Win
• Izuku vs. Valtor: Win
• Izuku vs. Gekko Moria: Win
• Izuku vs. Huggy Wuggy, and Granny Goodness: Loss
• Izuku, Asta, Senku, Tanjiro, and Sora vs. Muzan Kibutsuji, Marx, and HIM: Interuppted
• Izuku ,Goofy and Sonic vs. Queen Bee and Klarion: Win
• Izuku vs. Mommy Long Legs vs. Pete vs. Klarion the Witch Boy: Loss

On Sora's Team

Izuku encountered Sora, Donald and Goofybut thought they were tourists with quirks; a "key quirk", a "duck quirk" and a "dog quirk". Before suggesting they go to U.A. High School or showing them, they encounter the Red Guy running a takoyaki stall in one of his disguises, serving to families at certain "discounts". Goofy was rather on edge with his defensive instincts kicking in, warning that something was in the takoyaki; and suggested that they continue taking a look around the city. They soon meet Fat Gum; who was on his way to check out the takoyaki stand; and he started to greet and asked the trio of their visit. Before parting, they soon caught up by Bendi who wanted to join their "tour" in Deku's home country until a Heartless attack. After the fight, more questions were asked about their powers and fighting styles; especially about magic, flowmotion, and the Keyblade. With Class 1-A reported about Super-Heartless appearing, everyone met up (except Bakugo) to discuss the cause of people turning into Quirked Heartless; which Goofy pointed out seeing someone acting like the Red Guy at the stall. Once they were gearing up to shut down the event, they battled a powered Red Guy and his back-up until a message came for the enemy, exclaiming them that they "Got what they came for".

Before leaving after they found the Keyhole, Nezu openly hoped for Sora and his other fellow young members to attend U.A. High and bring as many new students from many worlds to spread the superhero ideal throughout every world in every distance; which lead to Izuku and Katsuki joining their journey in order to face stronger enemies.