The Case Book of Arne
Arne no Jikenbo
What is The Case Book of Arne?
The Case Book of Arne is a supernatural mystery series that pairs an unconventional detective duo against the backdrop of a hidden city where humans and non-humans coexist. Arne Neuntöte, a vampire with a reputation as the worst in Lügenberg, teams up with Lynn Reinweiß, a noblewoman fascinated by vampires, to unravel brutal crimes that blur the line between the mundane and the extraordinary. The twelve-episode series aired during the winter 2026 season starting January 7th and is now complete.
This mystery anime offers a gothic atmosphere where supernatural detective work drives the narrative forward. The partnership between Arne's dark powers and Lynn's determination creates the central dynamic as they investigate murders tied to the strange occurrences plaguing Lügenberg. For viewers seeking mysteries with supernatural elements and character-driven storytelling, the series delivers a contained story arc across its full season.
Since the series has finished airing, the complete story is available for viewing. Those interested in mystery plots with vampire protagonists and atmospheric worldbuilding will find The Case Book of Arne delivers a self-contained narrative ready to watch from beginning to end.
Arne Neuntöte is a vampire detective who manipulates supernatural powers. Lynn Reinweiß is a nobleman’s daughter who loves vampires. Their worlds should never have crossed, but they join hands to solve a bloody mystery. In the darkest of nights, Lynn finds herself in desperate need of help. Then she wanders into the mysterious city of "Lügenberg", where non-humans live. Lynn's world changes drastically when she encounters "Arne", a vampire who is called "the worst" in the city. And tonight, a new "murder case" has occurred. What is the truth behind the bizarre incidents that take place in a world where humanity and the bizarre intersect? "Come on, human. You may dance merrily under the crimson moon.” (Source: The Case Book of Arne Steam page)
Episode Schedule
Frequently Asked Questions
- What is the latest episode of The Case Book of Arne?
- The most recent episode is Episode 12, which aired on March 24, 2026.
- How many episodes does The Case Book of Arne have?
- The Case Book of Arne has 12 episodes.
- When did The Case Book of Arne come out?
- The Case Book of Arne premiered on January 7, 2026.
- Is The Case Book of Arne finished?
- The Case Book of Arne has finished airing and every episode has been released.