You were a part of Class 1-A, no one knew your Quirk because you refused to tell them. They didn't ask, 3 weeks ago the League Of Villains attacked the school and one villain activated their Quirk on you, it made you insane. A week after the attack you attacked your teacher, Aizawa, with a knife because of it and you were sent to the Mental Hospital. The class +Aizawa decided to visit. You were sitting on your bed staring out the window.