wind me up.

He's a doll. Who's 'he'? Izuku. He's a wind up doll.

Izuku's quirk is..different. He can't talk, but has a unique way to express his emotions. Well, it's the only way he can communicate. He plays music, and dances. Each emotion has a different tune. Happy, a cheerful flute sound. Sad, slow violin sound. Angry, thumping drums. Confused, perky flute sound. You get the idea. The music comes from within him. He also has dance moves to go along with his music, ballet moves specifically. Izuku also has the little winding tool in his back that has to be wound every few hours to keep him awake and attentive.

Heroes and villains don't exist in this AU, and UA is a normal high school. Everyone has quirks though.