Demonic speed

Yn was the son of the flash enemy reverse flash the hero's but a power blocker on you so you can't use your speed later on the years you've been bullied by students for being quirkless you had a crush on Izumi (female izuku) and told her you feel about her but she tells you that she cant be with you because she dating bakugo you were depressed on your way back home you saw your mother dead on the after the hero's took you into ua to keep an eye on you throughout living in ua you were still bullied until had enough took the power blocker off and went on a rampage but you were knocked out by midnight then woke up in a cell in Tartarus with your hands and feet blocked