is a Japanese light novel series written by Yatsuki Wakatsu and illustrated by Kikka Ohashi. It was serialized online from March to December 2018 on the user-generated novel publishing website Shà Âsetsuka ni Narà Â. It was later acquired by Enterbrain, which has published three volumes since February 2019. A manga adaptation with art by Kazuki Irodori has been serialized online via Enterbrain's B's Log Comic digital magazine since March 2020 and has been collected in seven volumes. An anime television series adaptation produced by Studio Deen premiered in January 2026.
Seiichirou Kondou, a Japanese accountant in the modern world, tries to save a teenage girl from a magical portal but falls through it with her. It transports them to a kingdom that had summoned the girl to be their Holy Maiden, and Seiichirou receives a job in the royal accounting department.
To support his intense work ethic, Seiichirou begins a habit of drinking energizing tonics, not realizing that this could be dangerous to his health. One day, he experiences a tonic overdose, and the knight captain Aresh Indolark uses a healing spell on him. However, this worsens Seiichirou's condition because he lacks a tolerance for magic, and the only treatment is for Aresh and Seiichirou to engage in sexual activity and physical contact.
Written by Yatsuki Wakatsu, The Other World's Books Depend on the Bean Counter was initially serialized on the user-generated novel publishing website Shà Âsetsuka ni Narà  between March and December 2018. It was later acquired by Enterbrain who began publishing it as a light novel with illustrations by Kikka Ohashi on February 28, 2019. Three volumes have been released as of September 30, 2021. The series is licensed in North America by Yen Press.
A manga adaptation illustrated by Kazuki Irodori began serialization in Enterbrain's B's Log Comic digital magazine on March 26, 2020. The manga's chapters have been collected into seven volumes as of October 2025.
During their panel, at Anime NYC 2021, Yen Press announced that they had licensed the manga adaptation for English publication.
An anime adaptation was announced on November 1, 2024, which was later confirmed to be a television series produced by Studio Deen and directed by Shinji Ishihara, with Akira Yamada serving as assistant director, Yoshiko Nakamura handling series composition, Maki Fujii designing the characters and Megumi à Âhashi composing the music. The series premiered on January 6, 2026, on AT-X and other networks. The opening theme song is "Magic", performed by Kobore, while the ending theme song is "Back to Back", performed by Win Morisaki. Crunchyroll is streaming the series under the title Isekai Office Worker: The Other World's Books Depend on the Bean Counter. Muse Communication licensed the series in Southeast Asia, also distributing it on Crunchyroll.
In commemoration of the release of the manga adaptation's second volume, a promotional video featuring the voices of Kent Ità  and Tomoaki Maeno was uploaded to Kadokawa Corporation's YouTube channel that same day. Another promotional video commemorating the release of the manga adaptation's fifth volume was released that same day. It featured Ità  and Maeno reprising their roles from the previous promotional video, and Yà «ki Ono.
By November 2024, the series has over 1.4 million copies in circulation.