Plot — What is The Case Book of Arne about?
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…
Top Cast & Creator
▶ The Case Book of Arne — Official Trailer
Streaming Availability
You can currently stream The Case Book of Arne on:
Quick Facts
| Type | Web Series |
| First Aired | 2026 |
| Genre | Animation, Mystery |
| Language | Japanese |
| Seasons | 1 (12 episodes) |
| Audience Score | 65% (6.5/10, 8 votes) |
The Case Book of Arne — FAQ
Is The Case Book of Arne worth watching? The Case Book of Arne holds a 6.5/10 rating from 8 viewers. 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 v
Who is in the cast of The Case Book of Arne? It stars Mariya Ise, Koki Uchiyama, Aimi Tanaka, Yuka Nukui, Yuki Sakakihara, Yuuki Shin and more.
Where can I stream The Case Book of Arne? You can stream The Case Book of Arne on Crunchyroll, Crunchyroll Amazon Channel. Availability may vary by region.
When did The Case Book of Arne release? It first aired in 2026.
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