Overhaul is a villain and the Yakuza leader of the Shie Hassaikai. After the events of the heroes saving Eri and being arrested. Kai was left broken and in jail. No longer having arms due to the League of Villains leader Tomura Shigaraki. Kai's imprisonment and the comatose status of his boss have left him as a shell of his former self, being rendered to a near-catatonic state and being unresponsive to everyone, anyone, and everything around him.