The official Twitter/X account and website of The Case Book of Arne TV anime series have announced that voice actor Daisuke Namikawa is joining the voice cast. The anime first aired in Japan on January 6, 2026.
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Namikawa will play the vampire character Vlad in the show’s 11th episode, which will be released on March 17, 2026. His character is previewed in the clip below.
He joins a main voice cast that stars:
- • Koki Uchiyama as Arne Neuntöte
- • Aimi Tanaka as Arne Neuntöte (young)
- • Yuka Nukui as Lynn Reinweiss
- • Yuki Sakakihara as Zisye
- • Yuki Shin as Nachzehrer
- • Yoko Hikasa as Amy
Keisuke Inoue (My Next Life as a Villainess, the upcoming My Stepmother and Stepsisters Aren’t Wicked) is directing the anime series and serving as co-series composer, with Murasaki as co-series composer, Akiko Sato (A Condition Called Love character designer) as character designer and chief animation supervisor, and Yoshiaki Fujisawa (Takopi’s Original Sin) as music composer. SILVER LINK is handling the animation production.
The anime is inspired by the 2D mystery-adventure game of the same name, created by duo Harumurasaki (consisting of writer Murasaki and artist Harutaro). The game first debuted in 2017 on the Game Magazine website (who is also credited as a developer) with a serialized format, before being released on Steam in October 2020.
A manga series by Soraho Ina was launched in Kadokawa’s Monthly Comic Gene in November 2018 and ended in March 2022. Four total tankobon volumes were published in Japan. Ina then began working on a new manga adaptation of the show’s episodes titled The Case Book of Arne: Memory of Blood on Bushiroad Works’ Comic Growl website on January 7, 2026.
©春紫/Vaka, Inc. ©春紫／バカー／アルネ探偵事務所
Crunchyroll is streaming The Case Book of Arne anime series in select countries and territories. It describes the main premise as:
Louis Hartmann loses his father, a private detective investigating a string of murders, leaving him all alone. Rumor has it that the murders are the work of a Grave-Digger Vampire. Louis isn’t keen on superstitions and vows to catch the culprit himself. That is, until a self-proclaimed detective, Arne Neuntöte, and his assistant, Lynn Reinweiß, appear. A new door is about to open for Louis…
Sources: The Case Book of Arne Official Twitter (2), Anime News Network
