The official website for the television anime adaptation of Game Magazine’s The Case Book of Arne (Arne no Jiken-bo) mystery game has released a teaser promotional video, revealing key staff members and confirming a January 2026 premiere. The announcement follows the game’s seventh anniversary, which was on November 6.
Unveiling the Production Team
The upcoming anime is set to be directed by Keisuke Inoue, known for his work on Ao-chan Can’t Study! and My Next Life as a Villainess: All Routes Lead to Doom!. Inoue will also be co-writing the anime’s script alongside Murasaki, the original game’s scenario writer and producer.
Akiko Satō, whose credits include Trigun Stampede and A Condition Called Love, is handling the character designs and will serve as the chief animation director. Yoshiaki Fujisawa is composing the music for the series. The animation production is being handled by SILVER LINK., a studio recognized for various adaptations, including My Next Life as a Villainess: All Routes Lead to Doom!
Original Creators’ Continued Involvement
The direct involvement of Murasaki, the original scenario writer, and Harutarou, the original character designer, highlights a commitment to preserving the essence of the source material. Murasaki will oversee the series composition, while Harutarou is responsible for the anime’s character designs. Harutarou also drew a special illustration to commemorate the anime announcement.
The Case Book of Arne Story Premise
The Case Book of Arne is based on a 2017 supernatural mystery adventure game developed by HARUMURASAKI and published by Vaka Game Magazine. The game introduces Arne Neuntöte, a vampire detective with supernatural abilities, and Lynn Reinweiss, a nobleman’s daughter with a fascination for vampires. Their paths intertwine in the mysterious city of “Lügenberg,” a place inhabited by non-humans. Together, they form an unlikely duo to unravel bloody mysteries and bizarre incidents occurring in a world where humanity and the bizarre coexist.
The game has also inspired a manga adaptation by Soraho Ina, which began serialization in Kadokawa’s Monthly Comic Gene magazine in 2018. Four compiled volumes of the manga have been published. An English version of the game is also available on Steam.
