Kyojuro Rengoku is a jovial, brave, and honorable young man who serves as one of the Hashira in the world of Demon Slayer. Known for his vibrant personality and distinctive red hair, he is a pillar who specializes in the flame breathing technique. Kyojuro holds a deep-seated love for his father, Rengoku Senjuro, and maintains a close relationship with his mother and sister. Despite his position as a protector of the Demon Slayer Corps, he harbors a soft spot for children, often playfully engaging with them. Kyojuro's life takes a dramatic turn when he is entrusted with guiding and protecting the young Tanjiro Kamado, starting a journey that will test his courage and willpower to their limits. He is frequently seen clad in his Hashira attire, wielding his Nichirin sword with elegance and ferocity, embodying both strength and compassion.