Quality Assurance in Another World

Quality Assurance in Another World is a Japanese manga series written and illustrated by Masamichi Sato. It began serialization on Kodansha's Comic Days website in May 2020. As of April 2025, the series' individual chapters have been collected into fifteen volumes. An anime television series adaptation produced by 100studio and Studio Palette aired from July to September 2024.

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Plot

Clayborne Island, a landscape fragmented into five small, contentious nations, is perpetually marred by conflict. Amidst this turbulent setting lies the Kingdom of Bayle, the smallest and most tranquil of these nations. On the outskirts of Bayle, in a modest village, resides a young girl named Nikola. Her life, characterized by the simplicity of daily chores, takes a dramatic turn when she encounters a giant dragon while collecting firewood. As the village braces for an attack, a mysterious man named Haga intervenes, identifying himself as a member of the "King’s Seeker," an enigmatic investigative squad.
Nikola, who has long found solace in the uneventful rhythm of her peaceful existence, is suddenly gripped by a desire for adventure. Compelled by Haga's presence and the allure of the unknown, she resolves to venture beyond the familiar confines of her village. Thus begins Nikola's quest to uncover the deeper truths of her world, embarking on a journey that promises to transform her understanding of the reality that lies beyond her sheltered life.

Characters

;Makoto Haga
;Nikola / Tesla
;Isora Amano
;Akira
;Jin
;Sakai
;Suzuki
;Namiko
;Kuro-chan
;Shachō
;Sumida
;Kana
;Gödel
;Akane Miyazaki
;Yamanaka
;Alba
;Ren Mizoguchi
;Kinoshita

Media

Manga

Written and illustrated by Masamichi Sato, the series began serialization on Kodansha's Comic Days manga website on May 30, 2020. As of October 2025, the series' individual chapters have been collected into sixteen tankōbon volumes.
In May 2021, Kodansha USA announced that they licensed the series for digital English publication. In July 2022, during their panel at Anime Expo, Kodansha USA announced the print release of the series.

Anime

An anime television series adaptation was announced in March 2023. The series is produced by 100studio and Studio Palette, and directed by Kei Umabiki, with series composition by Shogo Yasukawa, character designs by Shigeo Akahori, and music composed by Yuta Kasai, Seima Iwahashi and Daisuke Horikawa of Elements Garden. It was originally scheduled for April 2024, but was delayed to July, and eventually aired from July 6 to September 28, 2024, on the Animeism programming block on MBS, TBS and BS-TBS. The opening theme song is "No Complete" performed by Liyuu, while the ending theme song is "Loop" performed by Nacherry. Crunchyroll streamed the series. Medialink licensed the series in East and Southeast Asia for streaming on Ani-One Asia's YouTube channel.

Reception

Yasushi Kobayashi from Da Vinci offered praise to the story, calling it intense. Masaki Endo from Tsutaya News also offered praise, calling it unique from works in the isekai genre. The reviewer from had similar feelings, calling the story fun.