Demon Slayer Movie: Mugen Train

Tanjirou Kamado, Zenitsu Agatsuma, and Inosuke Hashibira join flame pillar Kyoujurou Rengoku on a mission to investigate a series of disappearances on a train. Kyoujurou takes personal responsibility for eliminating the threat, hoping to prevent further casualties among the 200 passengers. Unbeknownst to the group, a demonic presence has already taken control of the situation.