The highly anticipated first trailer for the Demon Slayer: Kimetsu no Yaiba – The Movie: Infinity Castle has been officially released, captivating fans worldwide with its stunning visuals and the reveal of its powerful theme song artists: Aimer and LiSA. This cinematic event marks the beginning of the thrilling conclusion to the beloved Demon Slayer anime saga, adapting the pivotal “Infinity Castle Arc” from Koyoharu Gotoge’s original manga. The first installment of the movie trilogy is set to premiere in Japan on July 18, 2025, with international releases, including in the U.S. and Canada, following on September 12, 2025.
A New Era for Demon Slayer’s Soundtrack
The newly unveiled trailer not only offers a glimpse into the intense battles and emotional depth awaiting viewers in the Infinity Castle but also announces two monumental musical contributions. Aimer will perform the theme song titled “A World Where the Sun Never Rises” (“Taiyō ga Noboranai Sekai”), while LiSA will contribute “Shine in the Cruel Night” (“Yami yo Terase”). Both tracks are slated for global availability on streaming platforms starting July 18, 2025, aligning with the Japanese theatrical release. The selection of these two acclaimed artists is particularly significant, given their deep and impactful history with the Demon Slayer franchise.
The Enduring Legacy of Aimer and LiSA
Aimer and LiSA are no strangers to the world of Demon Slayer, having previously delivered some of the most iconic and beloved anime theme songs in recent memory. Their return for the Infinity Castle film underscores their integral role in defining the series’ auditory landscape and amplifying its emotional resonance.
Aimer’s Impactful Contributions
Aimer, known for her distinctive husky voice and emotionally charged ballads, has left an indelible mark on the Demon Slayer series. Her previous contributions include “Zankyosanka” (残響散歌), the second opening theme for the Entertainment District Arc (Season 2), which was digitally released on December 6, 2021. “Zankyosanka” quickly became a global sensation, praised for its powerful melody and lyrics that empathize with the struggles and resolve of each character. Prior to this, Aimer also performed “Asa ga Kuru” (朝が来る), the second ending theme for the same arc, released on January 12, 2022. In her comments, Aimer expressed her excitement about adding “vibrant color” to the increasingly intense storyline of the Entertainment District Arc, a sentiment that perfectly captures her ability to elevate the narrative through her music. Her deep connection to the series’ themes and characters suggests that “A World Where the Sun Never Rises” will undoubtedly offer a profound auditory experience that complements the gravity of the Infinity Castle Arc.
LiSA’s Pioneering Role
LiSA, whose dynamic and energetic vocal style has become synonymous with Demon Slayer, was instrumental in launching the series to global prominence. Her breakout hit, “Gurenge” (紅蓮華; “Red Lotus”), served as the first opening theme song for the inaugural season of Demon Slayer: Kimetsu no Yaiba, released digitally on April 22, 2019. “Gurenge” became an instant phenomenon, topping charts and winning numerous awards, including a Newtype Anime Award for Best Theme Song. LiSA expressed her admiration for the protagonist, Tanjiro Kamado, stating that she sang “Gurenge” with courage, wishing for hope for the future despite the tragedies that befall him.
Following “Gurenge,” LiSA continued her impactful journey with the franchise by performing “Homura” (炎), the main theme song for Demon Slayer: Kimetsu no Yaiba – The Movie: Mugen Train. “Homura” further solidified her connection to the series, becoming another massive success and receiving immense praise. She also performed “Akeboshi” (明け星), the opening theme for the Mugen Train Arc TV series, released in November 2021. LiSA’s consistent ability to capture the essence of Demon Slayer‘s various arcs through her music makes “Shine in the Cruel Night” a highly anticipated addition, promising to deliver the same high-octane energy and emotional depth that fans have come to expect.
The collaborative return of Aimer and LiSA for the Infinity Castle film is a strategic move that capitalizes on their established fan base and their proven track record of creating chart-topping, emotionally resonant anthems for the Demon Slayer universe. Their combined artistry is poised to enhance the climactic narrative of the trilogy, leaving a lasting impact on viewers.
The Infinity Castle Arc: A Climactic Confrontation
The Demon Slayer: Kimetsu no Yaiba – The Movie: Infinity Castle trilogy is set to adapt the “Final Battle” portion of the manga, which primarily consists of the “Infinity Castle Arc” (chapters 137-183) and potentially the “Sunrise Countdown Arc” (chapters 184-205). This cinematic adaptation replaces what would have chronologically been Demon Slayer Season 5, bringing the series’ story to a definitive end on the big screen.
The “Infinity Castle Arc” plunges the Demon Slayer Corps into Muzan Kibutsuji’s formidable, extra-dimensional stronghold – a vast, maze-like structure created by the Blood Demon Art of the Biwa Demon, Nakime. Within this gravity-defying fortress, the Demon Slayers are scattered and forced into desperate, high-stakes battles against Muzan’s most powerful Upper Rank demons. The arc is renowned for its explosive battles and the unveiling of tragic backstories for some of the most despised villains, providing crucial closure.
Key plot points within the Infinity Castle Arc include Tamayo’s efforts to weaken Muzan with poison and the individual clashes of the Hashira against formidable Upper Moons. For instance, Shinobu Kocho faces Doma, the Upper Rank Two, in a battle for vengeance, while Zenitsu Agatsuma confronts the new Upper Moon Six. Notably, Tanjiro Kamado finally gets his long-awaited chance to avenge Kyojuro Rengoku by facing Akaza. The arc is an all-out war, culminating in the Demon Slayer Corps’ desperate struggle to defeat Muzan and put an end to the demon scourge before sunrise.
The decision to adapt this climactic arc into a movie trilogy stems from the unprecedented global success of Demon Slayer: Mugen Train, which set new box office records for an anime film. Crunchyroll’s Chief Commercial Officer, Asa Suehira, has commented that Infinity Castle is expected to be a major milestone for the anime industry, released on an “unprecedented scale.” This three-part cinematic approach, animated by the acclaimed studio Ufotable, promises to deliver breathtaking animation and intense action sequences that will surpass previous installments.
Release Schedule and Global Reach
The first film in the Demon Slayer: Infinity Castle trilogy is slated for release in Japanese theaters on July 18, 2025. Following its premiere in Japan, Crunchyroll and Sony Pictures Entertainment will facilitate a staggered international release, beginning in August with territories such as Malaysia, Singapore, and Pakistan. Fans in the United States and Canada can anticipate the film’s theatrical debut on September 12, 2025, with screenings available in both subbed and dubbed formats, including select IMAX theaters. Crunchyroll will also stream the movie after its theatrical run, though a specific streaming date has not yet been confirmed.
The global distribution strategy highlights the immense popularity of the Demon Slayer franchise and its significant impact on the international anime market. The trilogy’s release is poised to be one of the biggest anime events of 2025, bringing Demon Slayer‘s epic narrative to a spectacular close.
In addition to the trailer and theme song announcements, a new key visual featuring Akaza has also been released, further fueling anticipation for the film. Furthermore, the original soundtracks and orchestra concert soundtracks for the Demon Slayer: Kimetsu no Yaiba series will become available on subscription streaming platforms starting June 29, 2025, allowing fans to immerse themselves deeper into the franchise’s musical world. The stage is set for a truly unforgettable cinematic experience, as Demon Slayer: Infinity Castle prepares to deliver its final, monumental chapter.
