It sits on your chest for seven episodes and refuses to move. That anime-original first episode, Rengoku eating bento and shouting UMAI, then cutting down the demon in front of a family who never learns his name, is the setup that makes the ending land like a truck. Enmu's dream trap is the cruelest thing this show has done: Tanjiro has to cut his own throat to wake up, over and over, and the version of his family waiting in that dream is warm enough that you understand why the others never come back. Then Akaza shows up at dawn and ufotable stops animating a fight and starts animating a losing argument about what strength means. Rengoku holding the line with his eye caved in, telling Tanjiro to set his heart ablaze, is why people who swore they were done with this show came back. Yes, it's the movie recut. Watch it anyway, and watch Tanjiro scream at Akaza's back as the sun comes up.

Tanjiro Kamado and his fellow Demon Slayers take on a mission aboard the Mugen Train, where a string of mysterious disappearances points to a demon that has been preying on passengers and killing the slayers sent to stop it. Before anyone can board, Flame Hashira Kyojuro Rengoku has to deal with a lesser demon threatening the mechanics and going after a kind old woman and her granddaughter. Tanjiro, Inosuke and Zenitsu join the Hashira on the train, ready for a fight, but the demon waiting for them already has a scheme to reach into the minds of everyone aboard, around two hundred passengers, and wipe them out, a show of the strength of the Twelve Kizuki. The seven-episode TV version is a supernatural action drama that opens with a new, entirely anime-original episode covering the day before the movie's events, followed by a re-edited cut of the film with added scenes and music.