Isekai Quartet

*Isekai Quartet*
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
Genre	Comedy, isekai
Created by	Kadokawa Corporation
Based on	KonoSuba by Natsume Akatsuki; Overlord by Kugane Maruyama; Re:Zero by Tappei Nagatsuki; The Saga of Tanya the Evil by Carlo Zen; The Rising of the Shield Hero by Aneko Yusagi; Cautious Hero: The Hero Is Overpowered but Overly Cautious by Light Tuchihi; The Eminence in Shadow by Daisuke Aizawa;
Written by	Minoru Ashina
Directed by	Minoru Ashina
Voices of	Jun Fukushima; Sora Amamiya; Satoshi Hino; Yumi Hara; Yūsuke Kobayashi; Rie Takahashi; Aoi Yūki; Saori Hayami;
Music by	Ruka Kawada
Country of origin	Japan
Original language	Japanese
No. of seasons	3
No. of episodes	35 (list of episodes)
Production
Executive producer	Daiji Horiuchi
Producer	Yukiko Ishibashi
Cinematography	Jun'ichi Ōkubo
Animator	Studio Puyukai
Running time	12 minutes
Production companies	Studio Puyukai; Kadokawa
Original release
Network	Tokyo MX, MBS, BS11, ; AT-X; TVA (S1–2)
Release	April 9, 2019 –; December 22, 2025
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
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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.