Đạo diễn：外崎春雄,

Diễn viên：上田麗奈, 下野紘, 小西克幸, 岡本信彦, 松岡禎丞, 櫻井孝宏, 河西健吾, 花江夏樹, 関俊彦, 鬼頭明里,

As the Demon Slayer Corps members and Hashira engaged in a group strength training program, the Hashira Training, in preparation for the forthcoming battle against the demons, Muzan Kibutsuji appears at the Ubuyashiki Mansion. With the head of the Demon Corps in danger, Tanjiro and the Hashira rush to the headquarters but are plunged into a deep descent to a mysterious space by the hands of Muzan Kibutsuji. The destination of where Tanjiro and Demon Slayer Corps have fallen is the demons’ stronghold – the Infinity Castle. And so, the battleground is set as the final battle between the Demon Slayer Corps and the demons ignites.