is a Japanese anime series that is a chibi-style crossover between the light novel series KonoSuba, Overlord, Re:Zero and The Saga of Tanya the Evil, all published by Kadokawa Corporation. The first season aired from April to June 2019. A second season aired from January to March 2020, including characters from The Rising of the Shield Hero and Cautious Hero: The Hero Is Overpowered but Overly Cautious. An anime film set after the second season, titled Isekai Quartet: The Movie – Another World, was released in June 2022. A third season aired from October to December 2025, including characters from The Eminence in Shadow.
Premise One day, a magic button suddenly appears. The protagonists from KonoSuba, Overlord, Re:Zero, and The Saga of Tanya the Evil all press the button occasionally, unintentionally and move to a parallel world — another brand new isekai — where a new story featuring high school life begins. Soon, they are joined by protagonists from The Rising of the Shield Hero, Cautious Hero: The Hero Is Overpowered but Overly Cautious and The Eminence in Shadow.
Characters
Series Character Japanese English KonoSuba: God's Blessing on this Wonderful World! Kazuma Sato Jun Fukushima Arnie Pantoja Aqua Sora Amamiya Faye Mata Megumin Rie Takahashi Erica Mendez Lalatina Dustiness Ford (Darkness) Ai Kayano Cristina Vee Chris Ayaka Suwa Kira Buckland Vanir Masakazu Nishida Anthony Bowling Yunyun Aki Toyosaki Kayli Mills Chomusuke Hitomi Nabatame Ryan Bartley Wiz Yui Horie Brianna Knickerbocker Ruffian Tetsu Inada Jeremy Inman Overlord Ainz Ooal Gown Satoshi Hino Chris Guerrero Albedo Yumi Hara Elizabeth Maxwell Shalltear Bloodfallen Sumire Uesaka Felecia Angelle Aura Bella Fiora Emiri Katō Jill Harris Mare Bello Fiore Yumi Uchiyama Megan Shipman Demiurge Masayuki Katō Jeff Johnson Cocytus Kenta Miyake Bryan Massey Hamsuke Akeno Watanabe Heather Walker Yuri Alpha Hiromi Igarashi Whitney Rodgers Lupusregina Beta Mikako Komatsu Alexis Tipton Narberal Gamma Manami Numakura Anastasia Muñoz CZ2128 Delta Asami Seto Michelle Rojas Solution Epsilon Ayane Sakura Mallorie Rodak Entoma Vasilissa Zeta Kei Shindō Tia Ballard Pandora's Actor Mamoru Miyano Eric Vale Sebas Tian Shigeru Chiba Bill Jenkins Kyouhukou Hiroshi Kamiya John Swasey Re:Zero − Starting Life in Another World Subaru Natsuki Yūsuke Kobayashi Sean Chiplock Emilia Rie Takahashi Kayli Mills Puck Yumi Uchiyama Erica Mendez Rem Inori Minase Brianna Knickerbocker Ram Rie Murakawa Ryan Bartley Beatrice Satomi Arai Kira Buckland Roswaal L. Mathers Takehito Koyasu Ray Chase Felt Chinatsu Akasaki Christine Marie Cabanos Reinhard van Astrea Yuichi Nakamura Robbie Daymond Julius Juukulius Takuya Eguchi Chris Niosi Wilhelm van Astrea Kenyu Horiuchi Sonny Franks Petelgeuse Romanee-Conti Yoshitsugu Matsuoka Todd Haberkorn Alec Hoshin Toshiyuki Morikawa Garfiel Tinzel Nobuhiko Okamoto Zeno Robinson Otto Suwen Kōhei Amasaki Zach Aguilar The Saga of Tanya the Evil Tanya von Degurechaff Aoi Yūki Monica Rial Viktoriya Ivanovna Serebryakov (Visha) Saori Hayami Jeannie Tirado Matheus Johann Weiss Daiki Hamano Daman Mills Vooren Grantz Yūsuke Kobayashi Jeff Johnson Wilibald Koenig Jun Kasama Chris Wehkamp Rhiner Neumann Daichi Hayashi Ben Phillips Erich von Rerugen Shinichiro Miki J. Michael Tatum Kurt von Rudersdorf Tesshō Genda Greg Dulcie Hans von Zettour Hōchū Ōtsuka Mark Stoddard Adelheid von Schugel Nobuo Tobita Charlie Campbell The Rising of the Shield Hero Naofumi Iwatani Kaito Ishikawa Billy Kametz (Season 2)Stephen Fu (Season 3) Raphtalia Asami Seto Erica Mendez Filo Rina Hidaka Brianna Knickerbocker Motoyasu Kitamura Makoto Takahashi Xander Mobus Cautious Hero: The Hero Is Overpowered but Overly Cautious Seiya Ryuuguuin Yūichirō Umehara Anthony Bowling Ristarte Aki Toyosaki Jamie Marchi The Eminence in Shadow Cid Kagenou (Shadow) Seiichiro Yamashita Adam GibbsAlphaAsami SetoChristina KellyBetaInori MinaseAnnie WildGammaSuzuko MimoriElissa CuellarDeltaAi FairouzRaven TroupEpsilonHisako KanemotoEllen Elise EvansZetaAyaka AsaiDominique MeyerEtaReina KondoGenevieve Simmons Original characters Pantagruel Minami Tanaka Vera Mitrohina Nana Mizuki
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. Funimation licensed the series and is streaming it in both Japanese and English dubbed. In April 2019, it was added to Crunchyroll's streaming library as well. The opening theme song is , performed by Satoshi Hino, Jun Fukushima, Yūsuke Kobayashi and Aoi Yūki, while the ending theme song is , performed by Yumi Hara, Sora Amamiya, Rie Takahashi and Aoi Yūki.
Following the final episode of the first season, a second season was announced, with the staff returning to reprise their respective roles, and aired from January 14 to March 31, 2020. The season includes guest appearances of characters from The Rising of the Shield Hero. The opening theme song is , performed by Hino, Fukushima, Kobayashi and Yūki, while the ending theme song is , performed by Sumire Uesaka, Rie Takahashi, Inori Minase, and Saori Hayami. Funimation licensed the series for a simuldub. Crunchyroll is also streaming the season. Muse Asia is streaming the season in Southeast Asia.
Following the final episode of the second season, a sequel to the series was announced, 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. The film's theme song is , performed by Konomi Suzuki featuring Kashitarō Itō.
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, which aired from October 13 to December 22, 2025. The opening theme song is , performed by Hino, Fukushima, Kobayashi and Yūki, the ending theme song is , performed by Suzuki and Itō. Crunchyroll streamed the season and features English voice-over talent from Houston-based Sentai Studios.
Cultural impact Gadget Tsūshin listed "beautiful Megumin" in their 2019 anime buzzwords list.
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