After his family is viciously murdered, a kind-hearted boy named Tanjiro Kamado resolves to become a Demon Slayer in hopes of turning his younger sister Nezuko back into a human. 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 ventures to the south-southeast where he encounters a cowardly young man named Zenitsu Agatsuma. He is a fellow survivor from Final Selection and his sparrow asks Tanjiro to help keep him in line.
Tanjiro and his sister 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 film of Kimetsu no Yaiba, covering episodes 22-26 with some new footage and special ending credits.