Arne Neuntöte
main character
TV
5.9
My TrackerPLANNING
Episode: 0 / 12
My Score:
Anime DetailsFINISHED
- Format
- TV series
- Episodes
- 12
- Episode length
- 23 min
- Total watch time
- 4 h 36 min
- Status
- Finished
- Aired
- January 7, 2026 – March 25, 2026
- Season
- Winter 2026
- Source
- Video game
- Studio
- SILVER LINK.
- Original creator
- Harumurasaki
- Country
- Japan
- AniList score
- 59/100
Estimated watch time
4h 36m
⚡ 3 days at 5 eps/day
Tags & Tropes
Detective88%Vampire86%Shoujo80%Tragedy60%Anachronism40%
overview details
Synopsis
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)
Trailer
Watch on YouTubeMain cast & voice actors
Should you watch The Case Book of Arne?
Only if you enjoy mystery, especially stories with detective, vampire, shoujo.
Reception is lukewarm: 59/100 on AniList, with 19% of 1.9K ratings at 8/10 or higher.
22.7% of viewers drop it before the end, more than most, so give it a few episodes to see if it clicks.
At about 4 h 36 min in total, it is a short commitment — a weekend binge.
Where to Watch Officially
Availability, audio and subtitles vary by region and service.
Episodes
12 episodes are listed.
Creators & key staff
- Original creator
- Harumurasaki
- Series composition
- Keisuke Inoue
- Series composition
- Murasaki
- Character design
- Akiko Satou
Related entries
Opening & ending themes
Openings (1)
- OP1“Q.E.D.” by Sou · eps 1, 11
Endings (1)
- ED1“Ningyou no Machi” by Watashi Kobayashi · eps 2-10
Theme data from AnimeThemes.moe.
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The Case Book of Arne FAQ
How many episodes does The Case Book of Arne have?
The Case Book of Arne has 12 episodes of about 23 minutes each, roughly 4 h 36 min in total.
How long does it take to watch The Case Book of Arne?
About 4 h 36 min back to back. At two episodes a day it takes 6 days; at one hour a day, about 5 days.
Is The Case Book of Arne finished?
Yes. The Case Book of Arne has finished airing — the final episode aired March 25, 2026.
Is there a season 2 of The Case Book of Arne?
No sequel is listed for The Case Book of Arne as of October 2026.
Is The Case Book of Arne based on a video game?
Yes. The Case Book of Arne adapts the video game by Harumurasaki.
Who animated The Case Book of Arne?
The Case Book of Arne was animated by SILVER LINK..
Who sings the opening of The Case Book of Arne?
The opening, "Q.E.D.", is performed by Sou.
Where can I watch The Case Book of Arne?
The Case Book of Arne is listed on Crunchyroll. Availability varies by region — check the streaming links on this page.