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

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

Demon Slayer: Infinity Castle - Chapter 1: Akaza Returns

FinishedMovie1 episode2 hr 35 minJul 18, 2025

Synopsis

After the Hashira Training, Muzan Kibutsuji finally reaches the Ubuyashiki estate, triggering the confrontation the Demon Slayer Corps has spent years preparing for. Muzan immediately overturns the battlefield, dragging Tanjiro, the Hashira, and the other fighters into the ever-shifting Infinity Castle, the demons’ stronghold.

The corps is scattered through corridors that refuse to stay in one shape, forcing separate battles against the strongest Upper Ranks. As Tanjiro fights to reach Muzan, Akaza appears before him again, reopening a wound that has never healed since the Mugen Train. There is no safe ground left to retreat to; the castle itself has become the battlefield for the final war.

SourceManga
Studio
ufotable
RatingR
MyAnimeList
Score8.64Rank#92Popularity#613

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Current anime: 6 of 8

Songs

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Opening themes

1
  1. Taiyou ga Noboranai Sekai

    Aimer

Ending themes

1
  1. Zankoku na Yoru ni Kagayake

    LiSA

Kimetsu no Yaiba Movie 1: Mugenjou-hen - Akaza Sairai official image 1
Kimetsu no Yaiba Movie 1: Mugenjou-hen - Akaza Sairai official image 2
Kimetsu no Yaiba Movie 1: Mugenjou-hen - Akaza Sairai official image 3
Kimetsu no Yaiba Movie 1: Mugenjou-hen - Akaza Sairai official image 4
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Kimetsu no Yaiba Movie 1: Mugenjou-hen - Akaza Sairai official image 6

Characters

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MainAkaza
Japanese voiceIshida Akira
MainKamado Tanjirou
Japanese voicesHanae NatsukiSatou Satomi
SupportingAgatsuma Zenitsu
Japanese voiceShimono Hiro
SupportingDouma
Japanese voiceMiyano Mamoru
SupportingDouma's Father
Japanese voiceHamada Kenji
SupportingDouma's Mother
Japanese voiceNazuka Kaori
SupportingHakuji's Father
Japanese voiceTobita Nobuo
SupportingHashibira Inosuke
Japanese voiceMatsuoka Yoshitsugu
SupportingHimejima Gyoumei
Japanese voiceSugita Tomokazu
SupportingIguro Obanai
Japanese voiceSuzumura Kenichi

Staff

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Original CreatorGotouge Koyoharu
Director · Theme Song LyricsKondou Hikaru
DirectorSotozaki Haruo
Character DesignKajiyama Youko
Character DesignKikuchi Mika
Character Design · Chief Animation DirectorMatsushima Akira
Character DesignSatou Miyuki
Music · Theme Song ArrangementKajiura Yuki
Music · Theme Song CompositionShiina Gou
Art DirectorKabasawa Yuri

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