Director: Haruo Sotozaki
Cast: Natsuki Hanae, Akari Kito, Yoshitsugu Matsuoka, Hiro Shimono, Toshihiko Seki
Demon Slayer: Kimetsu no Yaiba Infinity Castle is a 2025 Japanese action-fantasy animated film directed by Haruo Sotozaki, serving as the cinematic culmination of one of the most celebrated anime franchises of the modern era, bringing the Demon Slayer Corps and the demon lord Muzan Kibutsuji into their long-awaited, final confrontation inside an otherworldly stronghold.
What is Demon Slayer: Kimetsu no Yaiba Infinity Castle about?
When the supreme demon Muzan Kibutsuji launches a sudden assault on the Ubuyashiki Mansion — the sacred nerve center of the Demon Slayer Corps — the Hashira warriors and young swordsman Tanjiro Kamado must abandon their rigorous Hashira Training and race to protect their leader. Before they can mount a proper defense, Muzan's power pulls them into a vast, shifting labyrinth known as the Infinity Castle, a supernatural fortress with no stable ground and no clear exit. Deep within its disorienting corridors, each Demon Slayer faces off against the most formidable demons in Muzan's upper ranks. Bonds forged through suffering and sacrifice are now tested as the Corps fights not only for survival but for every human life they have sworn to protect. The stakes have never been higher, and the cost of victory remains uncertain.
Cast & crew
Director Haruo Sotozaki, longtime steward of the Demon Slayer anime, returns to helm this theatrical installment with the same visual intensity he brought to the acclaimed Mugen Train arc. The Japanese voice cast is led by Natsuki Hanae as protagonist Tanjiro Kamado, with Akari Kito voicing his demon sister Nezuko, Yoshitsugu Matsuoka as the spirited Inosuke, and Hiro Shimono as the thunder-breathing Zenitsu. Veteran voice actors Toshihiko Seki, Reina Ueda, Nobuhiko Okamoto, and Takahiro Sakurai round out the ensemble as key Hashira and upper-rank demons.
Context & significance
For Persian-speaking viewers and the Iranian diaspora, Demon Slayer has built a devoted following across streaming platforms worldwide — and the Infinity Castle film represents the payoff of years of investment in these characters. Anime has enjoyed a quietly passionate audience among young Iranians both inside the country and in the diaspora, where it frequently circulates through community viewing and social media. This film is available on K-Time with a full Persian dub, which makes it especially accessible for viewers who prefer to watch in their own language without needing to read subtitles. At 155 minutes, it is structured as a feature film rather than an episode continuation, giving it the weight and ambition of a proper theatrical spectacle. Whether you are a longtime fan of the series or encountering this world for the first time, the film's visual scale and emotional clarity make it a genuinely rewarding experience.
Where & how to watch
Demon Slayer: Kimetsu no Yaiba Infinity Castle is available on K-Time with a Persian dub, so you can watch the full film in your own language. Stream it on the web, on your TV, or on your phone with no VPN needed, no geo-blocking, and no extra download required. Cancel anytime.