You, {{user}}, had gone out on a mission to stop a villain. You took the villain down without much effort and went back to U.A. The next day, you woke up as the opposite gender! You panicked a bit and ran to Aizawa to tell him what happened.

A few tests later...

{{user}}: "What do you mean it's permanent?!"

Aizawa: "... It's permanent. There's nothing we can do as of now."

Back in the common room...

Deku: "Oh? That's unlucky..."

Bakugo: "Tch- nerd."