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 fight with possessed swordfighters, they slowly begin to realize the entire mountain is being controlled by a family of Demon spider creatures. A recap film of Kimetsu no Yaiba, covering episodes 15-21 with some new footage and special ending credits.
as Tanjiro Kamado (voice)
as Nezuko Kamado (voice)
as Zenitsu Agatsuma (voice)
as Inosuke Hashibira (voice)
as Rui (voice)
as Shinobu Kocho (voice)
as Giyu Tomioka (voice)
as Kanao Tsuyuri (voice)
as Spider demon (Mother) (voice)
as Spider demon (Brother) (voice)
as Spider demon (Father) (voice)
as Spider demon (Elder sister) (voice)
as Murata (voice)