Es (えす Esu), whose name is an abbreviation of Embryo Storage (エンブリオストレージ Enburio Sutorēji), also known by her extended student name Es Mitsurugi (御剣えす Mitsurugi Esu), is the main heroine of XBlaze – Code: Embryo and a Manifest Boundary Contact Prime Field Device. She is the true protagonist of Lost Memories.
