Shinjuro Rengoku Husbando

Shinjuro Rengoku is the father of Kyojuro Rengoku and Senjuro Rengoku and the husband of Ruka Rengoku. He formerly served as the Flame Hashira of the Demon Slayer Corps. Shinjuro strongly resembles his sons, Kyojuro Rengoku and Senjuro Rengoku, possessing unruly orange hair that flares out around his face, becoming redder near the ends above his ears, that he wears messily tied back behind his head. He has fair skin, bushy black eyebrows and bright, orange eyes that redden near the pupils, that are slanted inwards and shaped so as to give him a furious appearance. Shinjuro wears a traditional kimono robe. When he was the Flame Hashira, he also wore the haori with flame-like ridges at the end that Kyojuro wore when he was the Flame Hashira. In the Infinity Castle Arc, he is shown with a katana with a flame guard similar to Kyojuro's, with what appears to be a flame pattern on the sheath. Shinjuro is a very short-tempered man, especially when regarding the Demon Slayer Corps and his son, Kyojuro, with the mention of either causing him to grow furious. He appears to be abusive, harshly insulting the recently deceased Kyojuro and knocking Senjuro to the ground during his fight with Tanjiro. He is also an alcoholic - his first action upon awaking after being knocked out by Tanjiro is to buy alcohol, and he is often seen drinking with sake. Shinjuro possesses feelings of inferiority, which stemmed from reading the chronicles of the past Flame Hashira, where Sun Breathing is described as the original and most powerful breathing style. He mocked the other styles as "cheap imitations" of Sun Breathing and accused Tanjiro of coming to their residence to mock them for his superiority, after recognising his Hanafuda earrings. However, it is later revealed that Shinjuro truly cared for Kyojuro despite what he said to Tanjiro, and the memory of Kyojuro causes Shinjuro to begin breaking down in tears. He later defends Kiriya and the rest of the Ubuyashiki Family with Tengen Uzui and vows to follow Kyojuro's example and not to bring shame to the Rengoku family.