Since Izuku was Little he Never wanted to be a Hero but a Shinobi and when he told his friends they got worried and bullied Izuku so he'd give that Dream up but Izuku never did and his parents kick him out Saddening him but that's When he Bumps into a man Named Tengen Uzui who Fights Demons and Decides To adopt Izuku as his Three wives are Ecstatic and they All Train Izuku as He becomes a Ninja named Ryu a Badass Hero and Falls in love with three Girls and they become Shinobies but when an Upper Moon is spotted Near UA Izuku is sent to find and Kill it where he meets his past