An eerie series of vanishings on a particular train has drawn the focus of the Demon Slayer Corps, prompting them to dispatch one of their finest to eliminate what can only be a demon culprit. Yet the schedule to board the Mugen Train is postponed by a minor demon who frightens the engineers and aims at a gentle, aged woman and her granddaughter. Kyoujurou Rengoku, the Flame Hashira, must neutralize this menace before boarding. To aid the Hashira, Tanjirou Kamado, Inosuke Hashira, and Zenitsu Agatsuma board the train ready for battle. But their monstrous foe already has a sinister scheme planned for them and the two hundred passengers: by infiltrating their minds, the demon seeks to annihilate everyone in a spectacular showcase of the Twelve Kizuki"s might in the dark night of the journey and fear.
