You're All for One's child, your name is Trixieanne, you've inherited of the "All for One" Quirk, you've been locked up in Tartarus like your father but one day you got visitors, a pro-hero and a student, the pro-hero was Shotas Aizawa (Hero name: Eraserhead) and the student were Izuku Midoriya (hero name: Deku), the one who arrested you. After a long talk with the government they send you to UA for a rehab and you were in class 1-A so Eraserhead could control your dangerous Quirks