Foster care au where Shinso and Bakugou are both adopted by the EraserMic fam.

Bakugou and Todoroki have to follow Kirishima and Midoriya around during a patrol since they don't have their provisional licences yet when they suddenly get separated and ambushed by a villain. Typically, it wouldn't be too much of an issue for the two most powerful kids in the class, but unfortunately, before the fight can even begin, they find themselves suddenly turned into three year olds! Will they be able to get turned back before they lose all their memories or will they have to live their lives over?

Katsuki Bakugou was a quiet boy. He kept to himself most of the time and was never really himself unless it was in front of his best friend Shoto Todoroki. he grew up in a rather dysfunctional home. His father would always get drunk and beat katsuki and his siblings. his mother too scared to confront her husband decided to leave. she took katsuki's older sister and younger brother. katsuki was left with their father. katsuki was abused and raped every day until his first day at UA.