Kensaku Ono (大野 健作 Ōno Kensaku) is the homeroom teacher of Class 3-D in Kunugigaoka Junior High School and the former teacher of Nagisa Shiota and Karma Akabane.
Appearance[]
Ono has short dark brown hair with thin-shaped eyes, and mostly seen with a serious expression and lightly tanned skin.
Personality[]
Like many of the faculty of the main building, Ono is antagonistic and cruel, occasionally towards Class E. Ono is also very uncaring as he doesn't care about the well being of his students or how they behave unless it benefit his reputation as a successful teacher.
However, despite his support of Gakuhō Asano's education policy, he expresses shock when the chairman plans to supercharge the final exams to be solved with college-level subjects.
History[]
Relationships[]
Karma Akabane[]
Karma is a former student of Ono's. At first, Ono acted friendly and supported Karma due to his good grades. However, after Karma beat up a classmate for bullying an E Class student, Ono's true nature was revealed as he betrayed him. Enraged, Karma wrecked his office, and birthed a newfound hatred for teachers until he was rescued from falling to his death by Korosensei a short time after joining Class E.
Nagisa Shiota[]
Ono showed very little patience towards Nagisa and even called him an "unteachable brat". According to him, he got the worst teacher's review of his career because of Nagisa. He seemed happy upon Nagisa's transfer to Class 3-E but the two haven't been seen interacting since
Againts on Sora's Team[]
Kensaku is the same as the other residents of the main school building who are equally controlled. It turns out that he has an evil, evil nature that likes to mock Class 3-E, Naofumi, and other heroes as trash. He has hatred, jealousy towards Nagisa, and Karma because he is jealous of the two of them who excel extraordinary in Sora's team for the mission, especially Kitaro, and his friends really don't like his actions, and the actions of the residents of the main building who have mocked Class 3-E as useless students except for Gakuho, Gakushu, Shindo, and Ren especially after Ren who has changed after being rescued to join Sora's team, Shindo apparently didn't like the nature of his friend Sugino's teacher who hated Sugino's friends is Nagisa, and Karma.