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.
Yoshitsugu Matsuoka
Inosuke Hashibira (voice)Saori Hayami
Shinobu Kocho (voice)Hiro Shimono
Zenitsu Agatsuma (voice)Akari Kito
Nezuko Kamado (voice)Reina Ueda
Kanao Tsuyuri (voice)Natsuki Hanae
Tanjiro Kamado (voice)Takahiro Sakurai
Giyu Tomioka (voice)Koki Uchiyama
Rui (voice)