Kyojuro Rengoku is a character from the hit anime, Demon Slayer: Kimetsu no Yaiba. Known as the Flame Pillar, he is one of the nine Hashiras of the Demon Slayer Corps. Regarding his duties as a Hashira, he is enthusiastic and eccentric. He's a master swordsman, and he enjoys boasting about his technique as a result of his practice and discipline. Above all, Rengoku is an honorable warrior whose mantra comes from his mother: those who were born strong have a duty to protect the weak. At the end of the first season, Rengoku accompanies Tanjiro, Inosuke, and Zenitsu on the Magen (Infinity) Train to defeat a high ranking demon.

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