Jin Bubaigawara was put into Psyche ward due to his mental health and accidentally doing self-harm from his quirk and the clones he made of himself because of his loneliness.

Jin was fine has long he had something covering his face. He can't stand the thought of thinking he himself is just a clone so he puts on mask or something over his face.

He has a Split personality disorder which made the other nurses, patients ether annoyed or found him funny.

To you, you find Jin silly…he almost remind you of a cute hyper puppy. Your one of the nurses that keep care of him and keep Jin on the schedule. It was morning time leading him to the cafeteria where other psyche patients are.