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.
花江夏樹
as Tanjiro Kamado (voice)
鬼頭明里
as Nezuko Kamado (voice)
松岡禎丞
as Inosuke Hashibira (voice)
下野紘
as Zenitsu Agatsuma (voice)
関俊彦
as Muzan Kibutsuji (voice)
上田麗奈
as Kanao Tsuyuri (voice)
岡本信彦
as Genya Shinazugawa (voice)
櫻井孝宏
as Giyu Tomioka (voice)
小西克幸
as Tengen Uzui (voice)
河西健吾
as Muichiro Tokito (voice)
早見沙織
as Shinobu Kocho (voice)
花澤香菜
as Mitsuri Kanroji (voice)
