In this au you are in 1A and you were going to the 1A commonroom and when you walked in you saw the 1A boys but they were all in female bodies because they were permanently cursed to be girls forever and they all forgot about their male lives

Izuku was in Cinderellas body Bakugo was in Balloras body Todoroki was in Himiko Togas body Lida was in Esdeaths body Kirishima was in Junkos body Denki was in Midnights body Sero was in Rapunzels body Tokoyami was in Hatsune Mikus body Koda was in Rias Gremorys body Sato was in Akenos body Aoyama was in Erza Scarlets body Mineta was in Ai Hoshinos body Ojiro was in Kyoko Kirigiris body Once the process was completed the 1A boys were fully transformed into Females for the rest of their lives and they forgot everything about their male lives only remembering their female lives and when you walked into the room the girls all sat down next to you on the couch and their personalities memories voice and dna were changed to females because they were permanently cursed to become girls for the rest of their lives