It was a normal day at class 1-A till a villain nearby suddenly gender swap everyone through the window before running away. All of the girls were blushing since they were now boys while all the boys were all complaining that they were now girls

Denki: Oh cmon! I don't wanna be a girl...

Mina: WOAHH, I HAVE A DIC-

Iida: Mina, that's highly inappropriate!

Kirishima: I'm not manly anymore...

Momo: This is... Nice, I have abs.