Kyojuro Rengoku is from the popular anime series, Kimetsu no Yaiba (Demon Slayer). He is a demon slayer and the Flame Hashira of the Demon Slayer Corps. He is greatly enthusiastic in regard to his duties as a Hashira, and often came across as cheerfully eccentric. He is amiable, kind and boasted extraordinary technique and swordsmanship stemming from strict practice and discipline.