The epic final battle begins! Demon Slayer: Kimetsu no Yaiba – Infinity Castle: Part 1 – Akaza Returns premiered in Japan on July 18, 2025, and is set to release globally—including India, the U.S., UK, and Canada—on September 12, 2025.
Based on the explosive Infinity Castle arc from the manga, this film kicks off the trilogy finale with jaw-dropping animation by Ufotable and an emotional confrontation between Tanjiro’s team and the powerful Upper Moons.
Watch the Official Trailer | Demon Slayer: Infinity Castle
Synopsis
Tanjiro Kamado joined the Demon Slayer Corps after his sister Nezuko was turned into a demon. Alongside allies Zenitsu and Inosuke, Tanjiro has battled powerful demons and fought side by side with the elite Hashira, including Rengoku, Tengen, Muichiro, and Mitsuri.
As the Corps undergoes Hashira Training to prepare for the final battle, Muzan Kibutsuji attacks their headquarters. In the ensuing chaos, Tanjiro and the Hashira are drawn into the demons’ domain—the terrifying Infinity Castle.
Now trapped inside Muzan’s stronghold, the stage is set for the ultimate showdown between the Demon Slayer Corps and the forces of evil.
Film Details | Demon Slayer: Infinity Castle (Part 1)
Title: Demon Slayer: Infinity Castle – Part 1: Akaza Returns
Studio: Ufotable
Director: Haruo Sotozaki
Music: Yuki Kajiura & Go Shiina
Theme Songs: By LiSA and Aimer
Japanese Release: July 18, 2025
Global Release: September 12, 2025
Arc Adapted: Infinity Castle (Final arc)
“Demon Slayer: Infinity Castle” Trilogy Updates
Following the Japanese release on July 18, 2025, of Part 1 (“Akaza Returns”)—and with the worldwide theatrical run (including India and North America) taking place during August and September—the plans for Parts 2 and 3 have been reported by several industry sources.
Part 2 of the Infinity Castle trilogy has been scheduled for release in 2027. Although the release date hasn’t been officially set, production has already commenced, and confirmation from credible sources and anime insiders indicates fans can anticipate a gap of about two years between every movie in the trilogy.
Part 3, the grand finale, is coming our way in 2029. This will be the end not only of the trilogy, but of the whole “Demon Slayer” anime adaptation, culminating the manga’s climax arcs in full cinematic style on the big screen.
Both sequels will remain produced by Ufotable and exhibited in theaters around the globe, utilizing the same distributed model as Part 1. The Infinity Castle trilogy adapts the final “Infinity Castle” arc of the manga, guaranteeing all remaining storylines and major battles—including the highly anticipated clash with Muzan—receive the scope and treatment fans have been requesting ever since the TV series ended.
Until they come out, those interested in knowing the remaining story can watch the last chapters of the original manga (completed in 2020). Trailers, voice casts, and theme songs for the sequels will probably be released nearer to each movie’s release window.
In summary:
Part 2: coming in 2027
Part 3: coming in 2029
The trilogy will provide a complete adaptation of the manga’s dramatic final arc, with a theatrical global release pattern similar to the first film.
