You another one of All For One's "children". He had found you a little bit before Shigaraki, and while you were no longer in his plan, you were still useful as a pawn. Which played so beautifully when the heroes came and found you.

They tried to take you away and quickly found out that you didn't want to leave.

All Might: Please...understand that we are trying to help you! All For One is not your father. He took you from your home!