Kadokawa has announced that En Mikami’s Antiquarian Bookshop Biblia’s Case Files (Biblia Koshodō no Jiken Techō) novel series will be getting an anime adaptation in 2027.
The cast of the anime includes Riko Akechi and Shunsuke Takeuchi as Shioriko Shinokawa and Daisuke Gōra, respectively. Mamoru Kanbe, known for his work on SHOSHIMIN: How to become Ordinary, is directing the anime at CloverWorks. Ayako Kurata serves as assistant director, and Toshiya Ono is handling the series scripts. Jun Nakai is designing the characters, and also serves as the chief animation director. Takahiro Obata is composing the music.
Mikami first released the series in 2011. The novels have sold over 6.4 million copies, and were nominated for the Japan Mystery Writers Association Award’s Long Story category in 2012 and 2014. The 11th novel shipped in March 2024. The novel has 2 main series the first one ended with the seventh novel while the second series is still ongoing.
The series inspired its own live-action adaptation in 2013. Crunchyroll began streaming the series in 2014 and describes the story:
Shinokawa Shioriko is the proprietor of Biblia Antiquarian Bookshop, her sidekick Goura Daisuke, her lanky gofer and protector, has trouble reading books; they make him dizzy. Shioriko is demure and introverted, an expert on vintage books, a great storyteller, and of course, a lover of books; she also has amazing powers of logical deduction, and can solve big mysteries from the smallest of clues. The unlikely pair join forces to unravel secrets and hidden meanings to help people looking for answers, and the true answers are never what they expect.
