YMMV / Live a Hero (MHA)

• Complete Monster: All For One is the ruthless mastermind behind the League of Villains. In the past, All For One kidnapped Nana Shimura's grandchildren with the intent to steal the body of one and use the other two as weapons against All Might and hero society. To this end, All For One abused and malnourished them, put them through Training from Hell, eventually killed Izuku's sister Kowareta when she defied him, and forced her Quirk on Izuku, who couldn't control it. After Izuku's escape, All For One brainwashed Tenko Shimura into loyalty, causing him to become Tomura Shigaraki. After Shigaraki rebels against him during the Kamino incident, All For One attempts to take over Bakugou's body before being stopped by All Might. In an attempt to break All Might's spirit, All For One tries to kill Izuku and Kirishima, gloating all the while.