Demon Slayer: Kimetsu no Yaiba Mt. Natagumo Arc(2021)

Demon Slayer: Kimetsu no Yaiba Mt. Natagumo Arc is an anime film that recaps the pivotal mountain arc from the series. Tanjiro, now a registered Demon Slayer, ventures onto Mount Natagumo with fellow slayers Zenitsu and Inosuke to investigate disappearances. When the group splits during combat with possessed swordfighters, they uncover a horrifying truth: the entire mountain is under the control of a demon spider clan. This compilation of episodes 15–21 includes new footage and special ending credits, offering an enhanced look at one of the series' most intense arcs. The story deepens Tanjiro's resolve while showcasing brutal battles and the growing bonds between the young slayers as they face increasingly powerful threats.