Isekai Quartet
Japanese anime television series
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
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
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.
The public source identifies “Isekai Quartet” as japanese anime television series. This brief keeps that definition visible, then builds a research path around Isekai, Quartet and Japanese.
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Reception evidence should be dated and situated: later canonical status may differ sharply from the work’s initial circulation. The source revision retrieved here is dated Sep 4, 2026. The linked authority identifier is Q60168285. None of the 1 selected statements returned an explicit reference. The first chronological checks are 2019, 2020, 2022 and 2025.
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This entry incorporates text from “Isekai Quartet” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.