The highly anticipated third season of the crossover anime Isekai Quartet is officially set to debut on October 13, 2025. The announcement came alongside the release of a new main promotional video, which also unveiled the theme song artists for the upcoming season.
Anime enthusiasts can look forward to hearing the opening theme song, “Isekai Concerto,” performed by a quartet of familiar voices: Ainz (Satoshi Hino), Kazuma (Jun Fukushima), Subaru (Yūsuke Kobayashi), and Tanya (Aoi Yūki). The ending theme, “Kimi Iro, Boku Iro” (Your Color, My Color), will feature the returning talents of Konomi Suzuki and Kashitarō Itō. Both songs are scheduled for digital release on October 14.
Debut Details and Streaming Information
Isekai Quartet 3 will premiere on October 13 on the Tokyo MX channel at 10:30 p.m. JST, with a simultaneous stream on Japan’s d Anime Store service. Following its initial broadcast, it will air on BS11 at 11:30 p.m. JST. Viewers on MBS can catch the anime on October 14, and AT-X will begin airing it on October 17. Other streaming platforms are expected to make the series available starting October 16.
What to Expect in Season 3
The Isekai Quartet series is known for its charming chibi-style animation and its unique premise, bringing together characters from popular isekai light novel series into a school setting. Season 3 will continue this tradition, featuring characters from Overlord, KONOSUBA -God’s blessing on this wonderful world!, Re:ZERO -Starting Life in Another World-, Saga of Tanya the Evil, and The Rising of The Shield Hero.
New Additions to the Crossover
A significant highlight of the new season is the inclusion of characters from The Eminence in Shadow. This expansion brings even more beloved figures into the quirky school environment, promising fresh interactions and comedic situations. The main promotional video offers a glimpse into these new daily adventures.
Returning Cast and Staff
The core production team remains consistent, with Minoru Ashina serving as both director and scriptwriter at Studio Puyukai. Minoru Takehara is credited as the character designer and chief animation director, while Ruka Kawada handles the music composition.
A Brief History of Isekai Quartet
The Isekai Quartet franchise began in 2019 with its first season, followed by a second season in 2020. The series gained a dedicated following for its humorous portrayal of these powerful characters navigating ordinary school life. In 2022, an anime movie titled Isekai Quartet The Movie: Another World was released, further expanding the franchise. The announcement of a third season was made in June, generating considerable excitement among fans. Crunchyroll currently streams the previous two seasons and the movie, describing the premise as characters from various worlds finding themselves stuck in a classroom after a mysterious button appears.
