Whoever Steals This Book
この本を盗む者は
Synopsis
Mifuyu is a high school student living with a large collection of books left by her great-grandfather―the vast library known as Mikura Hall. Although her father is the current caretaker, Mifuyu herself doesn't share her family's passion for literature. But when several books are stolen from the library, triggering an ancient curse, the town is transformed according to the various stories―and the only way to put things right is for Mifuyu to catch the thief. With the help of a mysterious girl named Mashiro, Mifuyu sets out on an adventure through the different story worlds!
Trailers, Teasers & Extra Featurettes
Official promotional previews, behind-the-scenes footage, and exclusive clips.
Official Trailer [Subtitled]Official
Type: Trailer • Published 2026-01-30
Top Cast
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Rin Kataoka
Mifuyu Mikura (voice)
Sora Tamaki
Mashiro (voice)
Nao Toyama
Hirune Mikura (voice)
Junichi Suwabe
Ayumu Mikura (voice)
Shizuka Itoh
Keiko Yosano (voice)
Shimba Tsuchiya
Takafumi Haruta (voice)
Romi Park
Tamaki Mikura (voice)
Shigeru Chiba
Junichirō Kaname (voice)
Ryota Suzuki
Tanbi Che (voice)
Reina Ueda
Natsume Harada (voice)
Tomokazu Seki
Osamu Kikuchida (voice)
Rie Takahashi
Shiori Haruta (voice)
You Taichi
Kakihara (voice)
Makoto Koichi
Hiroda (voice)
Yumiri Hanamori
Takayama (voice)
Hitomi Ueda
Osanai (voice)
Manaka Iwami
Uhara (voice)
Jun Fukuyama
Mysterious Man (voice)
Release History & Theatrical Window
Tauron Young Horizons International Film Festival
Festival / Special Debut
October 28, 2026
Physical Home Media
Key Information & Fast Facts
- Director
- Daiki Fukuoka
- Screenplay & Story
- Yasuhiro Nakanishi
- Original Score
- Michiru Oshima
- Original Title
- この本を盗む者は
- Country of Origin
- Japan
- Spoken Languages
- Japanese
- Runtime
- Unknown
- Production Studios
- Kagokan, KADOKAWA
Creative Leadership & Key Crew
Daiki Fukuoka
Yasuhiro Nakanishi
Michiru Oshima
Yuichiro Tozawa
Kengo Shigemura
Yuuji Higa
Department Leadership Roster
Daiki Fukuoka
Director
Yasuhiro Nakanishi
Screenplay
Michiru Oshima
Original Music Composer
Yuuji Higa
Producer
Yuichiro Tozawa
Director of Photography
Kengo Shigemura
Editor
Production Stills & Gallery
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Featured In Curated Collections
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Fall 2025
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Frequently Asked Questions About Whoever Steals This Book
Quick factual answers about cast, synopsis, director, box office, and release information.
What is Whoever Steals This Book about?
Mifuyu is a high school student living with a large collection of books left by her great-grandfather―the vast library known as Mikura Hall. Although her father is the current caretaker, Mifuyu herself doesn't share her family's passion for literature. But when several books are stolen from the library, triggering an ancient curse, the town is transformed according to the various stories―and the only way to put things right is for Mifuyu to catch the thief. With the help of a mysterious girl named Mashiro, Mifuyu sets out on an adventure through the different story worlds!
Who directed Whoever Steals This Book?
Whoever Steals This Book was directed by Daiki Fukuoka.
Who stars in Whoever Steals This Book?
The principal cast of Whoever Steals This Book includes Rin Kataoka, Sora Tamaki, Nao Toyama, Junichi Suwabe, Shizuka Itoh.
When was Whoever Steals This Book released and how long is it?
Whoever Steals This Book was released in 2025 with a total runtime of Unknown.
Who composed the musical score for Whoever Steals This Book?
The original motion picture soundtrack for Whoever Steals This Book was composed by Michiru Oshima.