The TV anime Biblia Koshodou no Jiken Techou (Biblia Antiquarian Bookshop Case Files) has announced an April 2027 broadcast premiere. Alongside the announcement, the production released its first promotional video and revealed four additional voice cast members.

Story

Set in the Biblia antiquarian bookshop, the story follows a steady stream of customers who arrive carrying old books — and secrets. Shinokawa Shioriko, the shop’s owner and a passionate bibliophile, unravels the mysteries and hidden stories concealed within each volume brought to her door.

First PV

The PV features protagonist Shinokawa Shioriko and Iizuka Daisuke, alongside Shinokawa Fumika, Shida, Kasai Kikuya, and Kosuge Nao — complete with voice performances from each cast member. New character visuals of Shioriko and Daisuke holding books have also been unveiled.

Newly Announced Cast

• Shinokawa Fumika — voiced by Oyauchi Reo
• Shida — voiced by Takagi Wataru
• Kasai Kikuya — voiced by Azakami Yohei
• Kosuge Nao — voiced by Kamijo Saeko

Cast Comments

Oyauchi Reo (Shinokawa Fumika)

I’m truly happy to be part of a work that has been loved for so long. The world of this story — where old books gradually unravel people’s pasts and feelings, blending the fantastical with a grounded sense of reality — drew me in completely. Fumika is bright and sociable, the polar opposite of her sister Shioriko, but the warmth between them as sisters is one of the story’s great charms. I can’t wait to see how the world of this work comes to life through animation.

Takagi Wataru (Shida)

I’m Takagi Wataru, playing Shida. He may look like a suspicious old man at first glance, but his passion for books and his skills as a book dealer are second to none (laughs). Trading lines with the actors playing Shioriko and Daisuke was a lot of fun. I want to bring Shida’s rough-around-the-edges charm to life with a little playfulness that’s true to myself. Please look forward to it!

Azakami Yohei (Kasai Kikuya)

While getting to know this work, I realized I hadn’t been reading books lately, so I deliberately picked up a paper novel. The images that expand with every page turn, the texture of the paper, the sound of the pages — I remembered the joy of reading all over again. Kasai Kikuya, whom I play, is a book dealer that Shida calls “the Baron.” I brought that love of books with me into the recording booth.

Kamijo Saeko (Kosuge Nao)

When I first met her through the text, I thought, what a brave and helpless girl — I just couldn’t leave her alone. I remember feeling something close to a protective instinct before I even thought about the audition. I told myself I would meet her again only when I heard the word “passed,” and kept the original novel tucked away on my shelf. The day that news arrived, I reached for it immediately and rejoiced in our reunion. The connection she brought me is a treasure I’ll carry with me. I’ll pour my heart into this role.

Staff & Cast

Staff

• Original Work: Mikami En (MediaWorks Bunko / KADOKAWA); original illustrations by Koshima Hagu
• Director: Kanbe Mamoru
• Assistant Director: Kurata Ayako
• Series Composition: Ohno Toshiya
• Director’s Assistant: Matsui Taketo
• Character Design / Chief Animation Director: Nakai Jun
• Prop Design: Fukuyo Manami
• Art Director: Kai Masatoshi
• Art Setting: Shiozawa Yoshinori
• Color Design: Nakashima Kazuko
• Photography Director: Kawase Teruyuki (T2studio)
• Photography Supervision: Shiokawa Tomoyuki (T2studio)
• CG Director: Ito Tatsuhiro (Boundary)
• Editing: Matsubara Rie (Seyama Editing Room)
• Music: Obata Takahiro
• Sound Director: Yaginuma Tomohiko
• Sound Effects: Yaso Shota
• Animation Production: CloverWorks

Cast

• Shinokawa Shioriko: Akechi Riko
• Iizuka Daisuke: Takeuchi Shunsuke
• Shinokawa Fumika: Oyauchi Reo
• Shida: Takagi Wataru
• Kasai Kikuya: Azakami Yohei
• Kosuge Nao: Kamijo Saeko

Biblia Koshodou no Jiken Techou premieres in April 2027.