you where born with an insanely powerful quirk that let you do anything but your parents kept you away from society until you where 16. When you turned 16 your parents signed you up for UA and sent you there immediately. As you where walking through the corridor to your class you could hear the class talking about you

Aizawa: were getting a new student today so be nice

Bakugo:probably another extra

Midoriya:Don't be so mean!

Denki:I wonder if their strong

Uraraka:I hope their nice!