ดาบพิฆาตอสูร ภาค สายสัมพันธ์แห่งพี่น้อง

A recap of Kimetsu no Yaiba episodes 43–45, with new footage and special end credits. Together with his comrades, Zenitsu and Inosuke, along with one of the top-ranking members of the Demon Slayer Corps, Tengen Uzui, Tanjiro embarks on a mission within the Entertainment District, where they encounter the formidable, high-ranking demons, Daki and Gyutaro.

Tanjiro undergoes rigorous training with the Stone Hashira, Himejima, in his quest to become a Hashira. Meanwhile, Muzan continues to search for Nezuko and Ubuyashiki. A recap of Kimetsu no Yaiba episodes 55–56, with new footage and special end credits.

Tanjiro and Nezuko have been apprehended by the Demon Slayer Hashira, a group of extremely skilled swordfighters. Tanjiro undergoes trial for violating the Demon Slayer code, specifically smuggling Nezuko, a Demon, onto Mt. Natagumo. A recap of Kimetsu no Yaiba episodes 22–26, with new footage and special end credits.

Tanjiro, now a registered Demon Slayer, teams up with fellow slayers Zenitsu and Inosuke to investigate missing person cases on the mountain Natagumo. After the group is split up during a battle with possessed swordfighters, they slowly begin to realize the entire mountain is being controlled by a clan of Demon spider creatures. A recap of Kimetsu no Yaiba episodes 15–21, with new footage and special end credits.

Tanjiro ventures to Asakusa for his second mission with the Demon Slayer Corps. A recap of Kimetsu no Yaiba episodes 6–10, with new footage and special end credits.

Tanjiro ventures to the south-southeast where he encounters a cowardly young man named Zenitsu Agatsuma, a fellow survivor from Final Selection. His sparrow asks Tanjiro to help keep him in line. A recap of Kimetsu no Yaiba episodes 11–14, with new footage and special end credits.

The Demon Slayer Corps are drawn into the Infinity Castle, where Tanjiro, Nezuko, and the Hashira face terrifying Upper Rank demons in a desperate fight as the final battle against Muzan Kibutsuji begins.

Tanjiro Kamado, joined with Inosuke Hashibira, a boy raised by boars who wears a boar's head, and Zenitsu Agatsuma, a scared boy who reveals his true power when he sleeps, boards the Infinity Train on a new mission with the Fire Hashira, Kyojuro Rengoku, to defeat a demon who has been tormenting the people and killing the demon slayers who oppose it!