Whoever Steals This Book anime film has officially announced a December 26, 2026 premiere date in Japan. The adaptation was announced in June this year, and is directed by Daiki Fukuoka at studio KAGOKAN.
You can watch the teaser trailer for the anime below.
The staff includes:
- Director: Daiki Fukuoka
- Screenplay: Yasuhiro Nakanishi
- Character Design & Chief Animation Director: Keiko Kurosawa
- Music: Michiru Oshima
- Animation Producer: Yuji Higa Animation
- Studio: KAGOKAN
- Distributor: Kadokawa Animation
Whoever Steals This Book is a novel by Nowaki Fukamidori, originally published by Kadokawa Shoten in October 2020. A paperback edition was later released under the Kadokawa Bunko imprint in June 2023. There is also a manga adaptation by Kakeru Sora, which ran in Young Ace from December 2021 to March 2023 and was compiled in three volumes. Yen Press licensed it in English, describing the story:
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: Whoever Steals This Book Official Website
©2026 Nowaki Fukamidori / KADOKAWA / “Whoever Steals This Book” Production Committee
