The Case Book of Arne Anime Adaptation: The Gothic Mystery Everyone's Talking About

Published on August 07, 2025 By Catwithbadmanners

Introduction to "The Case Book of Arne": The World of Arne Neuntöte and Lynn Reinweiss

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The long-awaited anime adaptation of "The Case Book of Arne" (Arne no Jiken-bo), a popular mystery game by Harumurasaki, has finally revealed its premiere date: January 2026. The announcement came with a teaser trailer that also introduced the talented team behind this new adaptation, generating great excitement among fans of the game and those interested in a gothic detective story with supernatural touches. The central premise revolves around the unlikely partnership of Arne Neuntöte, a vampire detective, and Lynn Reinweiss, a young aristocrat passionate about vampires. They join forces to solve bloody cases in the mysterious world of Rügenberg.

The Creative Team Behind "The Case Book of Arne": A Mark of Quality

The anime boasts an experienced creative team that promises to elevate the story to new visual and narrative heights. Keisuke Inoue, known for his work on "Ao-chan Can't Study!", "My Next Life as a Villainess: All Routes Lead to Doom!" and "Level 1 Demon Lord and One Room Hero," is directing the project at SILVER LINK studio, which is recognized for its animation quality. The anime's plot is co-written by Inoue and Murasaki, the original game's scriptwriter, ensuring fidelity to the essence of "The Case Book of Arne." Akiko Sato ("Trigun Stampede," "A Condition Called Love," and "Betrothed to My Sister's Ex") is in charge of character design and serves as chief animation director, while Yoshiaki Fujisawa composes the music.

"The Case Book of Arne": From Game to Manga and Now Anime

"The Case Book of Arne" has found success in various formats. Originally launched in November 2017 by Game Magazine, the game quickly gained popularity. The story was also adapted into a manga in 2018 by Soraho Ina for Kadokawa's Monthly Comic Gene magazine, with four volumes collected so far. In addition to the upcoming anime and manga, the game is available on Steam, allowing players to experience the adventures of Arne and Lynn directly.

Expectations and Plot Details for "The Case Book of Arne": A World Full of Mysteries

The anime’s plot follows the narrative of the original game, set in Rügenberg, a city inhabited by strange creatures where Arne Neuntöte, a vampire with supernatural powers, runs a detective agency. The arrival of Lynn Reinweiss, the daughter of an aristocratic family and a vampire enthusiast, marks the beginning of their collaboration to solve mysterious and unsettling cases that bridge the human and supernatural worlds. The teaser trailer promises to explore the intrigues and dangers lurking in this dark city, inviting viewers to discover the truth behind the bizarre incidents that occur under the crimson light of the moon.