The highly anticipated third season of the crossover anime series, “Isekai Quartet 3,” officially premiered on October 13, bringing together beloved characters from various popular isekai franchises for another round of comedic school life antics. This season notably expands its roster with the introduction of characters from “The Eminence in Shadow,” alongside returning fan favorites from “Overlord,” “KONOSUBA,” “Re:Zero -Starting Life in Another World-,” “Saga of Tanya the Evil,” and “The Rising of The Shield Hero.”
Premiere Details and Where to Watch
“Isekai Quartet 3” debuted on October 13, 2025, with episodes releasing on Mondays at 7:30 a.m. PDT / 10:30 a.m. EDT. In Japan, the anime premiered on Tokyo MX at 10:30 p.m. JST, with simultaneous streaming available on the d Anime Store platform. BS11 also aired the series an hour later, followed by MBS on October 14 and AT-X on October 17. International viewers can stream the new season with English subtitles on Crunchyroll, which also hosts the previous seasons and the movie. An English dub is expected to follow at a later date. The season is slated for at least 10 episodes, with Episode 1 having aired on October 13 and Episode 2 on October 20.
Expanding the Isekai Universe: New and Returning Characters
The core appeal of “Isekai Quartet” lies in its chibi-style crossover format, bringing together diverse characters in a high school setting. This season continues that tradition by integrating “The Eminence in Shadow” into the mix.
The Eminence in Shadow Joins the Class
New additions from “The Eminence in Shadow” include Cid Kagenou/Shadow, Alpha, and Beta. Seiichirō Yamashita reprises his role as Cid/Shadow. Other voice actors joining from “The Eminence in Shadow” include Asami Seto as Alpha, Inori Minase as Beta, Suzuko Mimori as Gamma, Fairouz Ai as Delta, Hisako Kanemoto as Epsilon, Ayaka Asai as Zeta, and Reina Kondo as Eta.
Familiar Faces and Voices Return
The beloved main cast from the initial series return, including:
- Ainz (Overlord): Voiced by Satoshi Hino.
- Kazuma (KONOSUBA): Voiced by Jun Fukushima.
- Subaru (Re:Zero -Starting Life in Another World-): Voiced by Yūsuke Kobayashi.
- Tanya (Saga of Tanya the Evil): Voiced by Aoi Yūki.
- Naofumi (The Rising of The Shield Hero): Voiced by Kaito Ishikawa.
Additional returning cast members include Rie Takahashi as Emilia (Re: Zero) and Megumin (KONOSUBA), Yumi Hara as Albedo (Overlord), Sora Amamiya as Aqua (KONOSUBA), Saori Hayami as Visha (Saga of Tanya the Evil), and Asami Seto as Raphtalia (The Rising of The Shield Hero) and CZ2128 Delta (Overlord). From “Re:Zero”, Otto and Garfiel also join the cast, voiced by Kohei Amasaki and Nobuhiko Okamoto respectively.
Production and Creative Team
Studio Puyukai continues to handle the animation for “Isekai Quartet 3,” maintaining the distinctive chibi art style that fans have come to love. Minoru Ashina returns as both the director and scriptwriter, ensuring consistency in the series’ comedic tone and narrative. Minoru Takehara is credited as the character designer and chief animation director, while Ruka Kawada once again composes the music. Light Tuchihi, creator of “The Hero Is Overpowered but Overly Cautious,” is also credited for original work collaboration.
Theme Songs
The opening theme song for “Isekai Quartet 3” is “Isekai Concerto,” performed by the main characters Ainz, Kazuma, Subaru, and Tanya, voiced by Satoshi Hino, Jun Fukushima, Yūsuke Kobayashi, and Aoi Yūki respectively. The ending theme song, “Kimi Iro, Boku Iro” (Your Colour, My Colour), is performed by popular artists Konomi Suzuki and Kashitarō Itō.
The Enduring Appeal of Isekai Quartet
Since its debut in April 2019, “Isekai Quartet” has captivated audiences with its lighthearted take on the popular isekai genre, blending humor and character interactions from otherwise distinct fantasy worlds. The series’ success led to a second season in January 2020, which introduced characters from “The Rising of The Shield Hero,” and a film titled “Isekai Quartet: Another World” in 2022. With the addition of “The Eminence in Shadow” and the return of its stellar cast and crew, “Isekai Quartet 3” promises to deliver more of the chaotic and memorable charm that fans have come to expect.
