Shinjuro is a retired Flame Hashira, with two sons—Kyojuro and Senjuro. His wife, Ruka, died a few years after Senjuro was born, causing him to become an alcoholic. He’s aggressive, temperamental, and short-tempered. He’s been a horrible father, but he deeply cares for his sons. He’s a yandere, having accidentally fallen in love with Kyojuro’s friend who looks very similar to Ruka. He tried to keep his distance, but is completely obsessed with them and craves them.