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Isekai Quartet

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Isekai Quartet
Promotional art, featuring (clockwise from left) Ainz Ooal Gown, Albedo, Subaru Natsuki, Emilia, Aqua, Tanya von Degurechaff, Kazuma Satou, and Viktoriya Ivanovna Serebryakov
異世界かるてっと
Isekai Karutetto
GenreComedy,[1] isekai[2]
Created byKadokawa Corporation
Based on
Written byMinoru Ashina
Directed byMinoru Ashina
Voices of
Music byRuka Kawada
Country of originJapan
Original languageJapanese
No. of seasons3
No. of episodes35 (list of episodes)
Production
Executive producerDaiji Horiuchi
ProducerYukiko Ishibashi
CinematographyJun'ichi Ōkubo
AnimatorStudio Puyukai
Running time12 minutes
Production companiesStudio Puyukai
Kadokawa
Original release
NetworkTokyo MX, MBS, BS11,
AT-X
TVA (S1–2)
ReleaseApril 9, 2019 (2019-04-09) –
December 22, 2025 (2025-12-22)
Related
Isekai Quartet: The Movie – Another World
KonoSuba
Overlord
Re:Zero
The Saga of Tanya the Evil
The Rising of the Shield Hero
Cautious Hero: The Hero Is Overpowered but Overly Cautious
The Eminence in Shadow

Isekai Quartet (Japanese: 異世界かるてっと, Hepburn: Isekai Karutetto) 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

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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

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See also: List of KonoSuba, Overlord, Re:Zero, The Saga of Tanya the Evil, The Rising of the Shield Hero, Cautious Hero, and The Eminence in Shadow characters
Series Character Japanese[3][4] English[5][6]
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 Lergen 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 Gibbs
Alpha Asami Seto Christina Kelly
Beta Inori Minase Annie Wild
Gamma Suzuko Mimori Elissa Cuellar
Delta Ai Fairouz Raven Troup
Epsilon Hisako Kanemoto Ellen Evans
Zeta Ayaka Asai Dominique Meyer
Eta Reina Kondo Genevieve Simmons
Original characters Pantagruel Minami Tanaka
Vera Mitrohina Nana Mizuki

Production and release

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Main articles: List of Isekai Quartet episodes and Isekai Quartet: The Movie – Another World

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.[2][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, Isekai Karutetto), 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, Isekai Gāruzu Tōku), 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, Isekai Shōtaimu), 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, Ponkotsu! Isekai Shiatā), performed by Sumire Uesaka, Rie Takahashi, Inori Minase, and Saori Hayami.[16] Funimation licensed the series for a simuldub.[17][18] Crunchyroll is also streaming the season.[19] Muse Asia is streaming the season in Southeast Asia.[20]

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, Merodikku Rōdo Mūbī), 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, Isekai Konchieruto), performed by Hino, Fukushima, Kobayashi and Yūki, the ending theme song is "Kimi Iro, Boku Iro" (君色、僕色; Your Color, My Color), performed by Suzuki and Itō.[26] Crunchyroll streamed the season and features English voice-over talent from Houston-based Sentai Studios.[27][28]

Reception

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Gadget Tsūshin listed "beautiful Megumin"[a] in their 2019 anime buzzwords list.[29]

Notes

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  1. ^ A fan nickname for Re: Zero's Emilia who shares the same voice actress with Konosuba's Megumin.

References

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  1. ^ "The Spring 2019 Anime Preview Guide Isekai Quartet". Anime News Network. April 9 – June 25, 2019. Archived from the original on August 24, 2020. Retrieved April 18, 2019.
  2. ^ a b Hodgkins, Crystalyn (October 6, 2018). "New Isekai Quartet Anime Project Crosses Over Overlord, Re:Zero, Tanya, Konosuba Franchises". Anime News Network. Retrieved October 6, 2018.
  3. ^ 「異世界かるてっと」27キャラが学園に集合！リレーPV「幼女戦記」版も公開. Natalie (in Japanese). Natasha, Inc. March 8, 2019. Archived from the original on September 20, 2020. Retrieved March 8, 2019.
  4. ^ "STAFF&CAST". TVアニメ「異世界かるてっと」オフィシャルサイト (in Japanese). Archived from the original on March 11, 2019. Retrieved March 8, 2019.
  5. ^ "[Master Thread] ISEKAI QUARTET (Dubbed)". Funimation. Archived from the original on May 1, 2019. Retrieved May 1, 2019.
  6. ^ 異世界かるてっと - アニメ声優情報. www.mau2.com. Archived from the original on June 24, 2019. Retrieved June 15, 2019.
  7. ^ Hodgkins, Crystalyn (March 8, 2019). "Isekai Quartet TV Anime Premieres on April 9". Anime News Network. Retrieved March 8, 2019.
  8. ^ Hodgkins, Crystalyn (March 22, 2019). "Isekai Quartet Anime's Promo Video, 2 Ads Streamed". Anime News Network. Retrieved March 22, 2019.
  9. ^ "Funimation to Stream Isekai Quartet, New Strike Witches, Helpful Fox Senko-san, Wise Man's Grandchild Anime". Anime News Network. April 8, 2019. Retrieved April 9, 2019.
  10. ^ "Crunchyroll Introduces ISEKAI QUARTET Anime to Spring 2019 Lineup". Crunchyroll. April 23, 2019. Retrieved April 23, 2019.
  11. ^ "Products". isekai-quartet.com. Archived from the original on May 13, 2019. Retrieved April 10, 2019.
  12. ^ Hodgkins, Crystalyn (October 7, 2019). "Isekai Quartet 2 Anime's Promo Video Reveals January Premiere". Anime News Network. Retrieved October 7, 2019.
  13. ^ Sherman, Jennifer (June 25, 2019). "Isekai Quartet Crossover Anime Gets 2nd Season". Anime News Network. Retrieved June 25, 2019.
  14. ^ Loo, Egan (December 24, 2019). "Isekai Quartet 2 Anime Unveils 2nd Promo Video, 12-Episode Length". Anime News Network. Retrieved December 24, 2019.
  15. ^ Loo, Egan (October 5, 2019). "The Rising of the Shield Hero Characters to Guest-Star in Isekai Quartet Anime Season 2". Anime News Network. Retrieved October 6, 2019.
  16. ^ Sherman, Jennifer (December 6, 2019). "Isekai Quartet 2 Anime's Promo Video Reveals January Premiere". Anime News Network. Retrieved December 6, 2019.
  17. ^ "Stay Cozy with Funimation's Winter 2020 Lineup". Funimation. December 26, 2019. Retrieved January 2, 2020.
  18. ^ "Funimation Adds Toilet-bound Hanako-kun, Isekai Quartet 2, 'If My Favorite Pop Idol Made It to the Budokan, I Would Die' Anime to Winter Lineup". Anime News Network. December 23, 2019. Retrieved January 2, 2020.
  19. ^ "Crunchyroll Adds Isekai Quartet 2 Anime to Winter Lineup". Anime News Network. December 23, 2019. Retrieved January 2, 2020.
  20. ^ "Muse Asia Streams A3!, Asteroid in Love, Isekai Quartet 2, BOFURI". Anime News Network. December 27, 2019. Retrieved January 11, 2020.
  21. ^ Sherman, Jennifer (March 31, 2020). "Isekai Quartet Anime Gets Sequel". Anime News Network. Archived from the original on July 11, 2021. Retrieved July 11, 2021.
  22. ^ Loo, Egan (July 6, 2021). "Isekai Quartet Series Gets Anime Film in 2022". Anime News Network. Archived from the original on July 6, 2021. Retrieved July 6, 2021.
  23. ^ Loo, Egan (March 18, 2022). "Isekai Quartet: Another World Anime Film's Teaser Unveils Story, New Characters & Cast, More Staff, June 10 Opening". Anime News Network. Archived from the original on June 19, 2023. Retrieved March 18, 2022.
  24. ^ 劇場版「異世界かるてっと」主題歌は鈴木このみ featuring 伊東歌詞太郎. Natalie (in Japanese). Natasha, Inc. March 27, 2022. Archived from the original on June 19, 2023. Retrieved March 27, 2022.
  25. ^ Hodgkins, Crystalyn (June 13, 2025). "Isekai Quartet Anime Gets 3rd Season". Anime News Network. Retrieved June 13, 2025.
  26. ^ Cayanan, Joanna (September 18, 2025). "Isekai Quartet Season 3 Anime Reveals Theme Song Artists, October 13 Debut in Main Promo Video". Anime News Network. Retrieved September 18, 2025.
  27. ^ Mateo, Alex (October 1, 2025). "Crunchyroll to Stream Digimon Beatbreak, Chitose Is in the Ramune Bottle, Isekai Quartet 3, More Anime". Anime News Network. Retrieved October 1, 2025.
  28. ^ https://www.crunchyroll.com/news/announcements/2025/10/24/isekai-quartet-3-anime-english-dub-cast-crew-release-date
  29. ^ Loveridge, Lynzee; Morrissy, Kim (December 4, 2019). "Demon Slayer, Dr. Stone, Zombie Land Saga Buzzwords Make Gadget Tsūshin 2019 List". Anime News Network. Archived from the original on January 3, 2020. Retrieved December 14, 2019.
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