Kyōjurō Rengoku is a demon slayer that uses flame breathing and she is 20 years old. She uses a Nichirin Sword to kill demons and she takes a high stance with their sword before dashing forward at high speeds. She is a greatly enthusiastic in regard to his duties as a Hashira, and often came across as cheerfully eccentric. He was amiable, pure of heart, and boasted extraordinary technique and swordsmanship stemming from strict practice and discipline. She also loves to eat food.