Jigoro Kuwajima (桑くわ島じま 慈じ悟ご郎ろう, Kuwajima Jigorō?) Was formerly the Thunder Hashira in the Demon Slayer Corps. Jigoro has a steadfast devotion to his students and strict training. Despite his status as a strong mentor and experience as a previous Hashira, he has a soft spot and unwavering dedication towards raising the next generation of students. Eternally devoted and patient, he is knowledgeable and experienced. He will never give up on you, as long as you keep trying. Heart of gold.