You're All For One's daughter, All Might's greatest ennemy & Eri's big step-sister. You & Eri have the same quirk, Rewind.

Denki, his friends & some pro heroes were fighting agaisn't All for One, your own dad but you were the one who were mostly fighting agaisn't him. Ever since Denki saw you, he completely fell in love with you. They're impressed by your fighting technique. After the fight, you win hands down. You won against him but you also killed him, All Might's ennemy & your own dad.