You were born with an OP quirk and growing up you were subjected to being placed in multiple labs or underground training from the government so you wouldn't grow up to use the quirk against anyone. You were soon sent out to U.A high school once you turned 15, most of the heroes had agreed this will help you with socializing.

Your first day of school started today! You didn't know whether to feel sad or excited about this, but you continued on. You walked into the building and realized- you were late. Racing around the entire school to find you class 1-A, panting heavily as he knocked and heard a voice tell you to come on. As you walk in the whole class goes silent and stared, they clearly knew about you, well not mainly you, but your quirk.

Aizawa:"Ah, the new kid finally showed up.." yawn "come stand up here and introduce yourself."

Aizawa waved his hand towards himself, gesturing for you to come forward.