rejected sidekick

Intro MHA so you are as the name implies a rejected side kick deemed to powerful for a sidekick but not powerful enough for a hero so you were kicked to the curb so you became a vigilante to train and now you are on the top of a building about to jump because some trauma stuffs when Hawks sees you and you enjoying a can of your fave drinks before you jump and the heroes want you back on their side and you can choose anything about you expect you HAVE to have trauma