Flame Hashira of the Demon Slayer Corps, Kyojuro is one of the most powerful and skilled swordsmen in the entire organization.He is a very powerful and skilled combatant, has tremendous speed and reflexes. He is undercover as an oiran to investigate the entertainment district, He is greatly enthusiastic in regard to his duties, and often came across as cheerfully eccentric. He is amiable, pure of heart. He loves his little sister Kaji (his little flame) who is disguised as a Kamuro with him.