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Kimetsu no Yaiba Movie 1: Mugenjou-hen - Akaza Sairai cover

Is Kimetsu no Yaiba Movie 1: Mugenjou-hen - Akaza Sairai good to watch with a friend?

One sitting. Kimetsu no Yaiba Movie 1: Mugenjou-hen - Akaza Sairai (Demon Slayer: Infinity Castle Arc) is a film from Summer 2025 by Ufotable, Inc.: 1 episodes, about 2.6 hours in total, finished, 8.68/10 across the listing sites.

actionadventuremanga adaptationcomedydemonsdramafantasymartial arts

Watching it together: one sitting. It is a film (about 2.6 hours), so the whole thing fits one evening — the easiest kind of anime to agree on. Rule: type MOVIE → one sitting.

This verdict comes from rules over the title's format, length and tags, not from a review — the rule that fired is named above.

The facts

Type
Film
Episodes
1
Episode length
155 min
Total time
about 2.6 hours — one evening
First aired
Summer 2025
Status
Finished
Studio
Ufotable, Inc.
Score
8.68/10 across the listing sites
Tags
action, adventure, manga adaptation, comedy, demons, drama, fantasy, martial arts, shounen, gore, historical, horror, monsters, revenge, superpowers, supernatural, swordplay, thriller, tragedy, violence, war

Data from anime-offline-database (ODbL) as of 2026-07-04; the score is the median of the scores the anime listing sites give it, on a 1–10 scale. Also listed as: Demon Slayer: Kimetsu no Yaiba - The Movie: Infinity Castle - Part 1: Akaza Returns; Demon Slayer: Kimetsu no Yaiba Infinity Castle Chapter 1; Demon Slayer: Kimetsu no Yaiba - Infinity Castle - Part 1: Akaza Returns; Demon Slayer: Kimetsu no Yaiba Movie - Infinity Castle: Part 1.

Do you and a friend both want to watch Kimetsu no Yaiba Movie 1: Mugenjou-hen - Akaza Sairai?

Queue Up reads two public AniList lists and shows every anime you both have on Planning — with Kimetsu no Yaiba Movie 1: Mugenjou-hen - Akaza Sairai flagged if it is one of them — then picks tonight's with a weighted roll or a bracket.

Do you and a friend both want to watch Kimetsu no Yaiba Movie 1: Mugenjou-hen - Akaza Sairai?Free, no login — reads public AniList lists.

Or open it on AniList or MyAnimeList.

Related anime

Kimetsu no Yaiba: Hashira Geiko-hen
TV series · 8 ep · 2024 · 8.2/10

More like this: action · adventure · manga adaptation · comedy · demons · drama · fantasy · martial arts · shounen · historical · horror · monsters · revenge · superpowers · supernatural · swordplay · thriller · tragedy · war.

Quick answers

How long does it take to watch all of Kimetsu no Yaiba Movie 1: Mugenjou-hen - Akaza Sairai?
About 2.6 hours — one sitting.
How many episodes does Kimetsu no Yaiba Movie 1: Mugenjou-hen - Akaza Sairai have?
1 episode of 155 min.
Is Kimetsu no Yaiba Movie 1: Mugenjou-hen - Akaza Sairai finished?
Yes, Kimetsu no Yaiba Movie 1: Mugenjou-hen - Akaza Sairai is finished (1 episodes), so you can watch the whole thing at your own pace.
Is Kimetsu no Yaiba Movie 1: Mugenjou-hen - Akaza Sairai good for a group?
Yes. Kimetsu no Yaiba Movie 1: Mugenjou-hen - Akaza Sairai is tagged action, comedy, the tags that survive a room full of people talking over the screen. It is a film, so nobody has to commit to a schedule.
Where is Kimetsu no Yaiba Movie 1: Mugenjou-hen - Akaza Sairai listed?
Kimetsu no Yaiba Movie 1: Mugenjou-hen - Akaza Sairai is on AniList (id 178788) and MyAnimeList (id 59192); Queue Up keys it by its AniList id and shows it when it is on either of your lists.

Queue Up is a free tool: enter two AniList usernames and it ranks the anime you both want to watch, rolls one for tonight, runs a bracket to settle it and finds new anime that fit both of you. List data from AniList; title data: anime-offline-database (ODbL), dataset of 2026-07-04; page updated 2026-07-04. Not affiliated with AniList or MyAnimeList. Queue Up is a Somebody Decide program. How it works · Legal & privacy · All lists