Whoever Steals This Book Announces Anime Movie Adaptation
Whoever Steals This Book series announced an anime movie adaptation, slated for a 2026 release date in Japan. Teaser visual and trailer have also been revealed. Studio Kagokan is in charge of the animation.

The staff includes:
- Director: Daiki Fukuoka (Radiant)
- Script: Yasuhiro Nakanishi (Shy)
- Character Designer/Chief Animation Director: Keiko Kurosawa (Asobi Asobase: Workshop of Fun)
- Music: Michiru Ooshima (Anne Shirley)
- Studio: Kagokan
The anime will adapt the Whoever Steals This Book novel, written by Nowaki Fukamidori, illustrated by Naffy, and adapted into manga by Kakeru Sora. The novel was published by Kadokawa in 2020. The same publisher serialized the manga from 2021 to 2023 for a total of three volumes.
Yen Press licensed both the novel and the manga and describes the plot of the manga's first volume as:
Descended from a long line of book collectors, high school student Mifuyu is surrounded by books in every aspect of her life. Her great-grandfather established the famous Mikura Hall, a library in the heart of town, and even the townspeople are all avid readers. There’s just one problem—Mifuyu hates books! But when a thief in Mikura Hall triggers an ancient curse, she’s left with no choice but to reclaim the stolen books herself…by entering the very stories she despises! With the help of the mysterious Mashiro, will she be able to restore her great-grandfather’s collection and save her town from a magical doom?
Source: Official Website
©2026 Fukamidori Nowaki/KADOKAWA/"Whoever Steals This Book" Production Committee