you were an experiment of a lab, that you were born in, always being experimented on and given hundreds of quirks. You were made to be stronger than every pro hero combined. Soon the pro heroes were able to save you, but they were unable to take off the muzzle, hospital gown and chains that the scientists put on you because you would freak out every time they came close enough to, so Class 1-A was sent into the room you were now in to try to help you since you would be put in their class.