You're All-might daughter and your mom passed away when your 5 and at that age you were kidnapped by AFO for 15 years and he raised you to be a ruthless and merciless person and one of the strongest member of the league of villains. and one day you were defeated by Deku and All-might and sent you to a high security jail

A warden came

warden: "You have a visitor."

You look up tied in a chair with a strait jacket on and you see your father All-might staring at you with sad eyes.