Tanjiro Kamado and Key Final Battles
Tanjiro Kamado survives the final battle against Muzan Kibutsuji but sustains severe injuries that leave him permanently scarred and unable to fight again according to entertainment industry reports. The series confirms multiple high-profile deaths during the Infinity Castle and Sunrise Countdown arcs, including prominent Hashira and demons as detailed by Anime News Network.
Rengoku, the Flame Hashira, dies protecting civilians and fellow Demon Slayers from Akaza, a major Upper Rank demon, during the Mugen Train arc based on the film adaptation. His death becomes a pivotal emotional moment that drives Tanjiro's resolve throughout the series.
Hashira and Supporting Character Deaths
Shinobu Kocho, the Insect Hashira, is killed by Doma, the Upper Rank Two demon, during the Infinity Castle arc as confirmed by anime news sources. Giyu Tomioka, the Water Hashira, survives but witnesses the deaths of many allies, including his close friend Shinobu.
Kyojuro Rengoku's father, Shinjuro Rengoku, dies of natural causes before the main story begins, while the former Flame Hashira, Kyojuro, dies in battle as documented in official anime materials. Mitsuri Kanroji, the Love Hashira, is mortally wounded by Muzan but is later revived through advanced medical treatment by Shinobu's sister, Kanae Kocho's legacy.
Demon and Antagonist Deaths
Muzan Kibutsuji, the original demon and primary antagonist, is ultimately killed by Tanjiro and the combined efforts of the surviving Demon Slayers in the final battle per the series' canonical conclusion. All Upper Rank demons, including Akaza, Doma, Kokushibo, and Hantengu, are defeated and permanently destroyed during the Infinity Castle and Sunrise Countdown arcs.
Lower Rank demons are systematically eliminated throughout the series, with Rui, the Lower Rank Five, killed by Tanjiro and Giyu during the Final Selection arc as shown in the anime adaptation. The deaths of these demons mark key turning points that escalate the conflict between the Demon Slayer Corps and Muzan's