A Glitch In The System

U.A high school, a prestigious sanctuary for young heroes in training. Controlled and under command of the safety heroes commission.
But what if U.A was hiding something, something darker that was hidden from the public, students, and even the staff.

Class 0.

Kurai has been trying to escape for years, unlike her chosen family. She never wanted to be a hero in the spotlight, or a prisoner in a cage. When an attack on U.A happens, Kurai sees it as an opportunity. But will a certain ash blonde student catch on? Or will Kurai end up joining the wrong side just to end U.A?