The Whoever Steals This Book (Kono Hon o Nusumu Mono wa) anime film has received a main trailer and main visual.
The new previews of the fantasy adventure were accompanied by the announcement of YUKI‘s “Share” as the theme song (heard in the new trailer) as well as Rin Kataoka and Sora Tamaki‘s castings as lead characters Mifuyu and Mashiro, respectively.
©️2025 深緑野分／KADOKAWA／「この本を盗む者は」製作委員会
Whoever Steals This Book is set to premiere on December 26, 2025 JST, following a bump up from its earlier 2026 release date. It’s based on the KADOKAWA-published book from Nowaki Fukamidori, which sees the book-disliking high school girl Mifuyu trying to save her town after a theft activates a curse that plunges the place into the world of fiction.
The book was first released in 2020. Yen Press, which has also licensed the manga adaptation by Kakeru Sora, describes the premise as such:
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 stories within them—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 stories!
Staff
• Director: Daiki Fukuoka (Danganronpa 3: The End of Hope’s Peak High School, Yuki Yuna Is a Hero Season 2)
• Scriptwriter: Yasuhiro Nakanishi (A Couple of Cuckoos series composer)
• Character designer and animation director: Keiko Kurosawa (Rumble Garanndoll)
• Music composer: Michiru Oshima (Anne Shirley)
• Animation producer: Yuji Higa (Kino’s Journey -the Beautiful World- the Animated Series production producer, Fate/Grand Carnival)
• Animation production: Kagome Company
