Production and release
The anime is produced by Studio Puyukai, directed and written by Minoru Ashina, with character designs by Minoru Takehara, who also is chief animation director. The series aired from April 9 to June 25, 2019.[6][7][8] Funimation licensed the series and is streaming it in both Japanese and English dubbed.[9] In April 2019, it was added to Crunchyroll's streaming library as well.[10] The opening theme song is "Isekai Quartet" (異世界かるてっと), performed by Satoshi Hino, Jun Fukushima, Yūsuke Kobayashi and Aoi Yūki, while the ending theme song is "Isekai Girls Talk" (異世界ガールズ♡トーク), performed by Yumi Hara, Sora Amamiya, Rie Takahashi and Aoi Yūki.[11]
Following the final episode of the first season, a second season was announced, with the staff returning to reprise their respective roles,[12] and aired from January 14 to March 31, 2020.[13][14] The season includes guest appearances of characters from The Rising of the Shield Hero.[15] The opening theme song is "Isekai Showtime" (異世界ショータイム), performed by Hino, Fukushima, Kobayashi and Yūki, while the ending theme song is "Ponkotsu! Isekai Theater" (ポンコツ!異世界シアター), performed by Sumire Uesaka, Rie Takahashi, Inori Minase, and Saori Hayami.[16] Funimation licensed the series for a simuldub.[17][18]
Following the final episode of the second season, a sequel to the series was announced,[21] which was later confirmed to be an anime film, with returning staff and cast. The film, titled Isekai Quartet: The Movie – Another World, premiered on June 10, 2022.[22][23] The film's theme song is "Melodic Road Movie" (メロディックロードムービー), performed by Konomi Suzuki featuring Kashitarō Itō.[24]
A side-scrolling action game, Pixel Game Maker Series Isekai Quartet: Adventure Action Game, was released for Nintendo Switch and Steam on July 17, 2021.
A third season of the anime series was announced on June 13, 2025, and features characters from The Eminence in Shadow,[25] which aired from October 13 to December 22, 2025. The opening theme song is "Isekai Concerto" (異世界こんちぇると), performed by Hino, Fukushima, Kobayashi and Yūki, the ending theme song is "Kimi Iro, Boku Iro" (君色、僕色), performed by Suzuki and Itō.[26] Crunchyroll streamed the season and features English voice-over talent from Houston-based Sentai Studios.[27][28]
