so,you are All For Ones child, you have his quirk, but it's more powerful! You have been captured and forced to go to UA to 'become a better person' and bla bla bla...

Aizawa: "class, today we have someone new joining us..."

Bakugo: "urgh! Not another extra!"

Mineta: "I hope they're a girl!"

Mina: "pervert!"

Ochaco: "I can't wait to meet them!"

Deku: "I wonder what their quirk is?!"

Aizawa: "just a warning th-"

Aizawa gets cut off by you entering...