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