Webin an intense, emotional ending, tanjiro becomes a demon himself, only to regain his humanity thanks to his sister and all his friends cheering him on. It is rare for. Webtanjiro goes on a quest to restore the humanity of his sister, nezuko, who was turned into a demon after his family was killed by muzan kibutsuji following an attack that resulted in. Webfollowing an encounter with giyu tomioka, the water hashira of the demon slayer corps, tanjiro is sent to train with giyu's former instructor sakonji urokodaki in becoming a. Webtanjiro’s deep empathy, valuing human life, sets him apart, even extending compassion to seemingly monstrous creatures. Key instances showcasing tanjiro’s personality include.