A new video for “The Case Book of Arne” anime adaptation has revealed key cast members, its music composer, and confirmed a January 2026 premiere. Kōki Uchiyama is set to voice the titular vampire detective Arne Neuntöte, alongside Mariya Ise, Aimi Tanaka, and Yuka Nukui in undisclosed roles.
The upcoming TV anime, based on the popular mystery adventure game and its manga adaptation, is generating excitement as it draws closer to its debut.
Premiere Set for January 2026
The television anime adaptation of “The Case Book of Arne” is slated to premiere in January 2026. While several sources confirm the January 2026 broadcast window, one report specifies a January 6 debut. Further details regarding the exact broadcast schedule will likely be announced closer to the premiere date.
Revealed Voice Cast and Main Characters
The latest update confirms several key voice actors joining the anime. Kōki Uchiyama, known for his roles as Roxas and Ventus in the Kingdom Hearts series and Tomura Shigaraki in My Hero Academia, will lend his voice to Arne Neuntöte, the vampire detective protagonist.
Other announced cast members include:
- Mariya Ise
- Aimi Tanaka
- Yuka Nukui
Specific roles for Ise, Tanaka, and Nukui have not yet been explicitly detailed, but fans anticipate they will voice significant characters such as Lynn Reinweiß, the nobleman’s daughter who partners with Arne to solve mysteries. The teaser trailer previously showed main characters in silhouette, building anticipation for these reveals.
Music and Production Staff
Yoshiaki Fujisawa has been confirmed as the music composer for “The Case Book of Arne” anime. Fujisawa’s previous works include scores for various anime titles, setting expectations for a compelling soundtrack that will enhance the mystery and gothic fantasy elements of the series. As of now, specific opening and ending theme song performers (vocal artists) have not been officially announced.
The animation production is handled by SILVER LINK. The main production staff includes:
- Director: Keisuke Inoue, known for “My Next Life as a Villainess: All Routes Lead to Doom!”
- Series Composition: Murasaki (original game creator) and Keisuke Inoue
- Original Character Designs: Harutaro
- Character Design & Chief Animation Director: Akiko Sato
“The Case Book of Arne” Story Overview
The anime adapts Harumurasaki’s popular mystery adventure game, “Arne no Jikenbo,” which first debuted on Game Magazine’s website in 2017. The narrative follows Arne Neuntöte, a powerful vampire detective, and Lynn Reinweiß, a noble’s daughter with a fascination for vampires. Their paths intertwine in the enigmatic city of “Lügenberg,” a place inhabited by both humans and non-humans, where they must collaborate to unravel a series of bloody and bizarre murder cases. The story promises a blend of supernatural elements and intricate detective work.
From Game to Manga to Anime
“The Case Book of Arne” began as an RPG Maker mystery adventure game developed by Harumurasaki and published by Vaka Game Magazine. The game was originally released in November 2017 and later became available on Steam.
Following the game’s success, a manga adaptation illustrated by Soraho Ina began serialization in KADOKAWA’s Monthly Comic Gene shōjo manga magazine in 2018. The manga ran until March 2022 and was collected into four tankōbon volumes. The announcement of the TV anime adaptation in November 2024, on the franchise’s seventh anniversary, marked another significant milestone for the beloved series. Fans eagerly await the animated portrayal of Arne and Lynn’s dark and captivating investigations.
