Why Me?

Au where Deku's father was abusive until he left him and his mother Inko when Deku was 13. Inko became an alcoholic and was a severely homophobic mother to the point where she would beat Deku for hours when she felt like it.

Aizawa starts noticing that his freckled student kept on coming to school with more and more bruises everyday. He and Present Mic had already adopted Shinsou since his parents had died in a car crash that year.

One week, Midoriya's mother had stopped feeding him and if he tried to eat something he would get locked in his room and beaten. On Friday the fatigue, abuse and malnourishment finally got to him and he passed out during hero training.