Japanese singer-songwriter Kenshi Yonezu has released the animated music video for his new song, “IRIS OUT,” which serves as the theme song for the highly anticipated Chainsaw Man – The Movie: Reze Arc. The music video premiered on Monday, September 15, 2025, accompanying the digital release of the song and building excitement for the film’s Japanese theatrical debut on September 19, 2025.
Unveiling “IRIS OUT”
The “IRIS OUT” music video is a fully animated spectacle that intricately weaves together footage from Chainsaw Man – The Movie: Reze Arc, offering fans a dynamic preview of the film’s narrative and action sequences. The visual presentation aligns closely with the movie’s storyline, showcasing both Denji’s youthful moments and crucial battles. Yonezu, known for his distinctive musical style, previously contributed the globally successful opening theme “Kick Back” to the first season of the Chainsaw Man anime, marking his return to the franchise.
Chainsaw Man – The Movie: Reze Arc Details
Chainsaw Man – The Movie: Reze Arc continues the story directly after the first season of the anime television series. The film is set to premiere in Japanese cinemas on September 19, 2025. International audiences will see a staggered release, with screenings kicking off in select Asian markets on September 24, and a wider global release through Crunchyroll via Sony Pictures Releasing from September 24 to October 24, 2025. The film will arrive in the United States on October 24, an earlier date than initially announced.
Produced by Studio MAPPA, the film is directed by Tatsuya Yoshihara, with Hiroshi Seko returning as the screenwriter. The movie follows Denji, who, after a date with Makima, encounters a mysterious girl named Reze while seeking shelter from the rain. This encounter plunges Denji into his “deadliest battle yet,” fueled by love.
The Musical Landscape of Reze Arc
Beyond “IRIS OUT,” the musical score for Chainsaw Man – The Movie: Reze Arc is a rich tapestry of talent. Kensuke Ushio returns from the anime series to compose the film’s background music, ensuring a consistent sonic identity for the franchise. Additionally, Kenshi Yonezu collaborates with Japanese-American singer Hikaru Utada for the film’s ending theme song, “Jane Doe,” which is scheduled for release on September 24, 2025, as a double A-side single alongside “IRIS OUT”.
