The staff for That Time I Got Reincarnated as a Slime the Movie: Tears of the Azure Sea (Gekijō-ban Tensei Shitara Slime Datta Ken: Sōkai no Namida-hen), the second anime film in the That Time I Got Reincarnated as a Slime (Tensei Shitara Slime Datta Ken) franchise, announced on January 5, 2026 two more cast members as well as the insert song artists. Anime news 2026 highlights the continued expansion of the franchise with new original characters and musical contributions for the upcoming film. Anime movie news 2026 showcases how major anime franchises continue to produce theatrical features with high-profile cast and music lineups.
Hinatazaka46 member Nao Kosaka plays shrine maiden Mio, an original character for the film. Hinatazaka46 member Kaho Fujishima plays shrine maiden Yori, another original character for the film. Anime news 2026 highlights the involvement of popular idol group members in anime voice acting, demonstrating the crossover appeal between idol culture and anime production. The casting of idol group members brings additional attention to the film from fans of both anime and Japanese pop culture.
Cast member Saori Ōnishi (Yura) sings the insert song "Sōkoku" (Blue Moment) and the six-member unit ARCANA PROJECT sings another insert song "Renainō" (Talent for Romance). STEREO DIVE FOUNDATION and ASH DA HERO member ASH are collaborating on the insert song "Harmonics." Anime news 2026 highlights the diverse musical lineup, with multiple artists contributing insert songs to enhance the film's emotional impact and narrative moments.
The single with all three insert songs and TRUE's theme song "Utopia" will go on sale on February 28, 2026 in a limited first edition and a regular edition. Anime news 2026 showcases the commercial aspect of anime film production, with soundtrack releases providing additional revenue streams and fan engagement opportunities. The inclusion of multiple insert songs demonstrates the film's emphasis on musical storytelling and emotional resonance.
The new cast members also include Saori Ōnishi as Yura, a priestess of the water dragon in Kaien. Koichi Domoto plays Zodon, the cabinet minister of the seabed nation Kaien. Kōji Yusa plays Djeese, the prime minister of the nation of Kaien. Anime voice actor news 2026 highlights the diverse cast of experienced voice actors and new talent, with Ōnishi both voicing a character and performing an insert song, demonstrating the multifaceted contributions of voice actors to anime productions.
The film will open in Japan on February 27, 2026. Crunchyroll has acquired the worldwide theatrical rights to the film. Sony Pictures Entertainment and Crunchyroll will screen the film in theaters with dates to be announced. Anime streaming news 2026 highlights Crunchyroll's continued expansion into theatrical distribution, with the platform securing worldwide rights for major anime film releases and coordinating international screenings through partnerships with Sony Pictures Entertainment.
The film's original plot is set after the celebration of the foundation of the Tempest Federation, with Elmesia, the ruler of the elf nation of Sarion, inviting Rimuru and other senior Tempest officials to vacation at a resort island in Sarion. Rimuru and the others enjoy their short vacation, but with the appearance of a mysterious girl named Yura as well as a looming darkness, it seems Rimuru must confront a new threat. Anime news 2026 highlights the film's original story, which expands the franchise's world-building by introducing the seabed nation of Kaien and exploring new regions and political dynamics within the series' fantasy setting.
The film will have returning cast members from the television anime. 8-Bit is producing the film's animation. Anime studio news 2026 showcases 8-Bit's continued involvement with the franchise, with the studio maintaining consistency in animation quality and character design across both television and film productions.
The That Time I Got Reincarnated as a Slime television anime will also get a fourth season, which will premiere this April. It will air for a total run of five cours (quarters of a year), with the first two cours airing continuously. 8-Bit is returning once again to animate the fourth season, and Miho Okasaki returns to voice protagonist Rimuru Tempest. Anime news 2026 highlights the unprecedented scale of the fourth season, with five cours making it the longest single season in the franchise's history, demonstrating the series' continued popularity and commercial success.
The anime's third season premiered in April 2024. The anime's 48.5 episode aired a week earlier than the season's premiere in March. The show aired for two continuous cours (quarter of a year) for a half-year run. The season ended with its 24th episode (the overall 72nd episode of the anime) on September 27. Anime news updates highlight the franchise's consistent output, with the third season maintaining the series' momentum and setting the stage for the upcoming fourth season and film releases.
Crunchyroll streamed the series as it aired and is also streaming an English dub. Anime streaming news 2026 highlights the international availability of the franchise, with Crunchyroll providing both subtitled and dubbed versions for global audiences, ensuring accessibility for viewers in multiple languages.
Atsushi Nakayama returned to direct the series at 8-Bit, and Toshizo Nemoto (That Time I Got Reincarnated as a Slime: Visions of Coleus) oversaw the series scripts. Ryōma Ebata returned as character designer, and Hitoshi Fujima from Elements Garden returned from That Time I Got Reincarnated as a Slime: Scarlet Bond and That Time I Got Reincarnated as a Slime: Visions of Coleus to compose the music. Anime industry news 2026 showcases the consistency of the production team, with key staff members returning across multiple seasons and films, ensuring continuity in artistic vision and storytelling approach.
The first television anime of Taiki Kawakami's manga, itself an adaptation of Fuse and Mitz Vah's light novel series, premiered in October 2018. Crunchyroll streamed the anime, and FUNimation Entertainment streamed an English dub. Anime adaptation news 2026 highlights the franchise's long history, with the series maintaining popularity for over seven years and continuing to expand through multiple seasons, films, and spinoff productions.
The second television anime season premiered its first cours (quarter of a year) in January 2021. The television anime of Shiba's spinoff manga The Slime Diaries: That Time I Got Reincarnated as a Slime (Tensura Nikki Tensei Shitara Slime Datta Ken) then premiered on Tokyo MX in April 2021. After The Slime Diaries ended, the second cours of the second season began in July 2021 — for nine straight months of television anime from the franchise in 2021. Anime news 2026 showcases the franchise's ability to sustain multiple concurrent productions, with spinoff series complementing the main series and providing additional content for fans.
The That Time I Got Reincarnated as a Slime: Scarlet Bond film opened in Japan in November 2022. The three-episode That Time I Got Reincarnated as a Slime: Visions of Coleus anime debuted in Japan in November 2023 with all three episodes. Crunchyroll is streaming the anime with subtitles and an English dub. Anime movie news 2026 highlights the franchise's consistent film and special production output, with Tears of the Azure Sea representing the second original film following Scarlet Bond, demonstrating the series' commercial viability in theatrical formats.
The announcement of new cast members and insert song artists comes as the film approaches its February 27, 2026 premiere date, building anticipation through promotional reveals. Anime news 2026 highlights how cast and music announcements serve as key promotional milestones for anime films, generating fan interest and media coverage in the weeks leading up to theatrical releases.
The combination of idol group members in voice acting roles, experienced voice actors, and diverse musical artists creates a comprehensive promotional strategy for the film. Anime industry news 2026 showcases how anime productions leverage multiple entertainment industry sectors, including idol culture, voice acting, and music, to maximize audience reach and commercial success.
Frequently Asked Questions
What new cast members were announced for Tears of the Azure Sea?
The new cast includes Nao Kosaka (Hinatazaka46) as Mio, Kaho Fujishima (Hinatazaka46) as Yori, Saori Ōnishi as Yura, Koichi Domoto as Zodon, and Kōji Yusa as Djeese.
What insert songs are featured in the film?
There are three confirmed insert songs: "Sōkoku" (Blue Moment) by Saori Ōnishi, "Renainō" (Talent for Romance) by ARCANA PROJECT, and "Harmonics" by STEREO DIVE FOUNDATION in collaboration with ASH (ASH DA HERO).
When does the film open in Japan?
The film is scheduled to premiere in Japanese theaters on February 27, 2026.
When will the soundtrack single be released?
The single featuring the theme and insert songs will go on sale on February 28, 2026, in both limited first edition and regular editions.
Who is distributing the film internationally?
Crunchyroll has acquired the worldwide theatrical rights (excluding certain Asian territories) and will handle the international release alongside Sony Pictures Entertainment.
What is the film's plot?
Set after the Tempest foundation festival, Rimuru and his friends are invited to a resort island in the elf nation of Sarion. Their vacation is interrupted by the appearance of a mysterious girl named Yura and a looming darkness involving the undersea nation of Kaien.
What is the theme song for the film?
The official theme song is titled "Utopia" and is performed by the artist TRUE.
Who are the original characters introduced in the film?
The film introduces several original characters, including the shrine maidens Mio and Yori, the water dragon priestess Yura, and Kaien officials Zodon (Cabinet Minister) and Djeese (Prime Minister).
What studio is producing the film?
The animation production is being handled by 8-Bit, the same studio responsible for the previous seasons and the first film.
When does Season 4 of the TV anime premiere?
Season 4 of the television series is scheduled to premiere in April 2026. It is planned for a massive five-cour run, with the first two cours airing consecutively.