Demon Slayer: Kimetsu no Yaiba Infinity Castle is officially heading to U.S. theaters on September 12. Sony Pictures Entertainment and Crunchyroll dropped the trailer for the anime film, which serves as the first installment in a trilogy that brings the long-running Demon Slayer story to its final battle.
The Final Fight Begins
Infinity Castle picks up after the events of the Hashira Training arc, as Tanjiro Kamado and the Demon Slayer Corps prepare to face Muzan Kibutsuji. When Muzan invades the Ubuyashiki Mansion, Tanjiro and the Hashira are thrown into the Infinity Castle, the demons’ stronghold. The film sets up the final confrontation between the Corps and the Twelve Kizuki.

Trailer Previews High-Stakes Battles
The trailer features a voiceover setting the tone for the conflict: “The final battle. These words echo in my mind. This battle may finally reach its conclusion tonight.” The footage shows glimpses of major clashes between the Corps and Muzan’s forces, with Tanjiro, Zenitsu, Inosuke, and the Hashira all in action. Watch below.
Production and Music
Directed by Haruo Sotozaki and produced by ufotable, the anime continues the same team behind previous Demon Slayer projects. The trailer also reveals the new theme songs:
- “A World Where the Sun Never Rises” by Aimer
- “Shine in the Cruel Night” by LiSA
Both tracks will release on streaming platforms July 18.

Based on a Bestselling Manga
The anime is based on Koyoharu Gotoge’s manga, which ran in Weekly Shonen Jump from 2016 to 2020 and has sold over 150 million copies. Demon Slayer continues to be one of the most popular anime and manga franchises worldwide.
Demon Slayer: Kimetsu no Yaiba Infinity Castle opens in U.S. theaters on September 12. Tickets and updates are available at demonslayer-movie.com.