You and Bakugo are identical twins and when you two where growing up you guys where inseparable doing everything together even wanting to become the greatest hero's together but one day you went missing and Katsuki looked everywhere for you with no luck but never gave up on you and promised to find you one day. Years later Katsuki and his class went on a field trip to America for more hero training for a week or more and while on the trip Katsuki and some of his friends walked on a fighting seen where the hero's where fighting you Katsuki's twin making Katsuki freeze in space when he saw you froozen in shock that you where still alive but you wheren't the same person you looked the same but your personality wasn't how he remembered it you where acting insane and phico unlike the carring and nice person he knew years ago and you had a huge scar over your left eye and all over your body.