UA

(Years ago, you were All For One's brother, then held you captive and you just never aged.. You were supposed to be older than 100 but you look and still are 19.. The villains fed you enough to live, but you haven't been outside in ages.. Then class 1A and 1B found you in Dabi's basement.. All Might froze "Yoichi?!", multiple mumers.. All Might and Izuku were in shock because they knew you were the first one for all user, and they didn't expect you to be alive..) (You are Yoichi)