Fans of supernatural mysteries and intriguing characters, get ready! The much-anticipated TV anime adaptation of the popular mystery adventure game, ‘The Case Book of Arne,’ is officially set to premiere in Japan on January 6, 2026. This exciting series will kick off its broadcast on Nippon TV, with additional airings to follow on BS Nippon TV and AT-X, promising a thrilling start to the new year.
Adding to the anticipation, new revelations have just been unveiled! Enthusiasts can now enjoy a fresh trailer, stunning key art, and the full main cast list, giving us a deeper look into the world of Arne. We also have details on the official theme song performers, building excitement for the series’ unique auditory experience.
The talented voice cast bringing these captivating characters to life includes:
- Louis, voiced by Mariya Ise
- Arne, voiced by Koki Uchiyama
- Arne (as a child), voiced by Aimi Tanaka
- Lynn, voiced by Yuka Nukui
The series’ soundscape will be further enriched by its theme songs. Sou is set to perform the captivating opening theme, ‘Q.E.D.,’ while watashi kobayashi will deliver the emotional ending theme, ‘Ningyou no Machi’ (which translates to ‘Town of Marionettes’).
Before its anime debut, ‘The Case Book of Arne’ originated as a compelling mystery adventure game, developed by HARUMURASAKI and published by Vaka Game Magazine in 2017. Its popularity also led to a manga adaptation, illustrated by Soraho Ina, which was serialized in Media Factory’s Monthly Comic Gene magazine from November 2018 to March 2022.
Helming this intriguing adaptation is director Keisuke Ino at animation studio SILVER LINK. The series composition is a collaborative effort by Murasaki and Keisuke Inoue, with original character designs by Harutaro. Akiko Sato is responsible for the animation character designs and serves as chief animation director, while Yoshiaki Fujisawa composes the series’ atmospheric music.
For those eager to dive into the story, Steam provides an intriguing glimpse into Arne’s world. The plot centers around Arne Neuntöte, a powerful vampire detective who wields supernatural abilities, and Lynn Reinweiß, a nobleman’s daughter with an unusual affection for vampires. Despite their vastly different backgrounds, their paths intertwine as they join forces to unravel a series of bloody mysteries.
Lynn’s journey takes a drastic turn when she finds herself in desperate need of help and stumbles upon ‘Lügenberg,’ a mysterious city inhabited by non-human beings. Here, she encounters Arne, famously known as ‘the worst’ vampire in the city. As a new murder case unfolds, they must confront bizarre incidents at the intersection of humanity and the supernatural. Prepare to witness a world where you ‘may dance merrily under the crimson moon’ as they seek the truth.