CloverWorks Unveils Antiquarian Bookshop Biblia’s Case Files Anime for Spring 2027

Aniplex officially announced that the animated television adaptation of En Mikami’s bestselling cozy mystery novel series, Antiquarian Bookshop Biblia’s Case Files (Biblia Koshodo no Jiken Techo), will premiere in April 2027 as part of the Spring 2027 anime season. Powerhouse animation studio CloverWorks is producing the series, bringing together an elite creative team featuring director Mamoru Kanbe, screenwriter Toshiya Ono, and character designer Jun Nakai. Starring seiyuu Riko Akechi and Shunsuke Takeuchi, the show follows an introverted antique book expert and her book-phobic partner as they solve intricate real-world mysteries hidden within literary classics.

What Is the Release Date for the Antiquarian Bookshop Biblia Anime?

The anime adaptation of Antiquarian Bookshop Biblia’s Case Files is officially scheduled to premiere in April 2027. Aniplex confirmed the Spring 2027 release window alongside a promotional trailer and visual reveal.

The original novel series by En Mikami began publication in 2011 and has amassed over 8.5 million copies in print. Having previously received live-action TV drama and feature film adaptations, this project marks the franchise’s first animated series.

Who Is Producing the Antiquarian Bookshop Biblia’s Case Files Anime?

Aniplex has partnered with CloverWorks to handle the animation production. CloverWorks is widely celebrated for high-profile hits like Spy x Family, The Promised Neverland, and Wonder Egg Priority. The creative staff behind the project features several industry veterans:

• Director: Mamoru Kanbe (SHOSHIMIN: How to become Ordinary, The Perfect Insider, Sound of the Sky)
• Series Composition & Screenplay: Toshiya Ono (SHOSHIMIN: How to become Ordinary, The Perfect Insider)
• Character Design & Chief Animation Director: Jun Nakai (NieR:Automata Ver 1.1a, Silver Spoon, Lord El-Melloi II’s Case Files)
• Music Composer: Takahiro Obata (The Promised Neverland)

This project reunites director Mamoru Kanbe and writer Toshiya Ono, who previously collaborated on mystery driven projects, signaling a strong focus on precise narrative pacing and atmospheric storytelling.

Who Are the Voice Actors in the Cast?

The main voice cast features a mix of rising stars and seasoned seiyuu talent:

• Shioriko Shinokawa: Voiced by Riko Akechi
• Daisuke Gora: Voiced by Shunsuke Takeuchi (Bleach: Thousand-Year Blood War, Vinland Saga)
• Ayaka Shinokawa: Voiced by Reo Osanai
• Hajime Shida: Voiced by Wataru Takagi (Detective Conan, JoJo’s Bizarre Adventure)
• Kikuya Kasai: Voiced by Yohei Azakami (Mobile Suit Gundam: The Witch from Mercury)
• Nao Kosuga: Voiced by Saeko Kamijo

What Is the Story of Antiquarian Bookshop Biblia’s Case Files?

Set in a cozy secondhand bookstore in Kamakura, Japan, the narrative revolves around an unconventional detective pairing:

• Shioriko Shinokawa: The shy, introverted owner of the Biblia Antique Bookstore. While she struggles with everyday social interactions, her encyclopedic knowledge of rare books and sharp deductive reasoning allow her to solve complex human mysteries through the clues left inside vintage volumes.
• Daisuke Gora: Shioriko’s protective partner and handyman. Despite his imposing physique, Daisuke suffers from a peculiar physical condition where reading physical books causes severe dizziness.

Together, the duo uncovers forgotten histories, family secrets, and personal truths hidden within the margins of rare and out-of-print literature.