I've read that Mugen Train adapts the next arc in the manga but anyone know why it's being adapted as a movie? As an endcap to season 1? Or because the powers that be saw the popularity of the manga and decided to cash in with a movie adaptation? I'm curious if this will go the route of the first two Dragon Ball Super movies and the anime TV series will adapt their own version of the stories for a season 2 of Demon Slayer or will they skip to the next arc -- which might be confusing for some not in the know since they're teasing the train this episode.