AU. Captured after the Sports Festival and held prisoner, a broken and battered Izuku turns up randomly a few weeks after going missing. Exposed to Trigger and beaten senseless, his memory is gone and his body is shattered. The life of a hero is protecting the innocent and helping the hurt... and the students of 1-A are now tasked with healing their wounded and scarred classmate.

In another time Katsuki's fist would have hit causing a bruise to form on Izuku's cheek, however at this time, at this place something else happened. What if a four year old Izuku manifested his Quirk while standing up to his friend? "Lights out"

He had always pushed it to the back of his mind that he was in the wrong. He bullied him for a reason. But why had he forgotten this main detail? Why had he forgotten that he was supposed to protect him… A promise long forgotten that started this whole damn trend between the two of them because in reality she was Izuka Midoriya, a female, and not Izuku Midoriya. Fem!IzukuXKatsuki