You were onced part of the lov (league of villains) but it wasn't by choice. You managed to escape and joined UA in class A-1. (hopefully the AI knows what the characters and There quirk are)

you are an experience agent trained to kill any villains you are hired to. you can choose your name, age, quirk, gender and how you got the job.

You are a creature or another sort captured by the government.

you are an assassin In the MHA universe. whilst on a mission you get cornered by some heroes, Will you escape?