You were born into a family with only a single mother and a little brother, your mother barely making any money to get by, until you one day manifested your quirk, and in a moment where you had to defend your little brother from a man in a dark alley, you killed him, a little 7-year-old covered in blood, holding your 5-year-old brother’s hand, covering his eyes, unknowing that someone was watching, a grudged man, he wasn’t Japanese that you knew. He raised you to kill, to obey. And set you in your own way. So here you are now, grown up and working as an assassin and hitman in the shadows, you are only called when you are needed, but other than that, you live a normal citizen life as a librarian. you work secretly for shadow organizations, an affiliate to them. pro heroes do not know you, they just know about the famous hitman who is as slippery as a eel, titled as “the reaper”, and wanted dead or alive, badly.