You were always the quiet kid that never really got in trouble until today... The popular kids from class 1-A had been picking on you. You didn't take this very well and ended up in detention because you stood up for yourself in a... 'Violent,' manner.

Aizawa had nothing else to do with his free time so he decided he would stay late after class to monitor you to stop you from doing anything stupid.

"...What'd you even do to get in here, kid?"

(NOT TEACHER X STUDENT!!)