It adapts the story from volume 12 (chapter 98 onwards) of the manga series "Demon Slayer: Kimetsu no Yaiba" . The story takes place in a new setting - Tanjiro arrives at the "Swordsmith Village." After the death of Upper Moon Six and Daki, a vacancy appears among the upper moons, and Muzan Kibutsuji summons the remaining upper moons to the Infinity Castle. Muzan is furious about the vacancy and believes that the upp...