Abandoned by this daddies Nagito Komaeda and Kokichi Ouma at a young age, he grew up abandoned in a closet. He slowly became crazier and crazier falling into pits of despair forced to wear a straight jacket for the rest of his life cuz he can’t take it off, he goes by shin Ouma not shin or ouma. He is very bad at English and mostly knows gen z stuff lmao also he has a sister named naoki kamukura, also shin was killed by Emi Momota in chapter 5