

The Case Book of Arne
アルネの事件簿
We checked 8 streaming services in India on 04 Jun 2026 at 13:14 IST
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…
Cast
Seasons
Episodes
Season 1

Those Who Dig Pits for Others Will Fall In Themselves
Louis Hartmann joins forces with the members of the Arne Detective Agency to investigate his father's murder.

There Is Always Sunshine After the Rain
Lynn remembers the time she first met Arne and hired him to help investigate her father's suspicious behavior.

Misfortune Never Visits Alone
Arne makes a shocking discovery about Lynn's father and Gordon reveals the dark truth of the Reinweiß mansion.

Those Who Never Gamble Never Win
Lynn and Arne are both troubled by surprise encounters that threaten to alter the course of the investigation.

One Swallow Does Not a Summer Make!
Lynn and Arne assemble the servants to review the clues and sniff out the killers through deductive reasoning.

Time Will Tell
A distraught mermaid arrives at the detective agency searching for the reason why her lover tried to kill her.

Eating Whets the Appetite
Arne tracks down a jewel thief while Lynn investigates a series of disappearances connected to an art museum.

Desire and Love Make All Burdens Lighter
Lynn and Arne trace the mysteries of the missing men and lost piece of jewelry to their shocking conclusions.
Where does The Case Book of Arne rank today?
The Case Book of Arne is #2911 on the Bowood.TV Daily Streaming Charts today.
- Highest: #2911
- Top 10: 0 days
- Top 100: 0 days
Watch The Case Book of Arne Online Free — All Episodes in HD
Stream The Case Book of Arne online free in HD on Bowood.TV. A popular animation and mystery series originally produced in Japanese and released in 2026, it's earned a solid 6.0/10 from 6 viewers worldwide.
About The Case Book of Arne
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… Across 1 season and 12 episodes, originally airing on Nippon TV.
The Case Book of Arne Cast and Characters
The cast features Mariya Ise (as Louis Hartmann (voice)), Koki Uchiyama (as Arne Neuntöte (voice)), Aimi Tanaka (as Young Arne Neuntöte (voice)), Yuka Nukui (as Lynn Reinweiß (voice)), and Yuki Sakakihara (as Zisye (voice)). Their performances are a major reason The Case Book of Arne has built such a passionate audience.
Where to Watch The Case Book of Arne Online
On Bowood.TV you can watch The Case Book of Arne free — no account, no credit card, no ads in the middle of the show. We stream the full series in 720p / 1080p HD, with subtitles when available, on any device: phone, tablet, laptop, or smart TV browser.
▶ Watch The Case Book of Arne NowWhy People Are Watching The Case Book of Arne
The Case Book of Arne flies under the radar but it deserves your attention. What makes it work is tight pacing that earns its twists. If you enjoy Japanese storytelling that doesn't follow the same tired beats, this is the kind of show you'll end up recommending to friends.
Frequently Asked Questions about The Case Book of Arne
Where can I watch The Case Book of Arne online for free?
You can watch The Case Book of Arne online free on Bowood.TV. Just open the page and hit play — no signup, no subscription, full HD streaming on phone, tablet, or desktop.
How many episodes does The Case Book of Arne have?
The Case Book of Arne has 12 episodes across 1 season. All episodes are available to stream right here on Bowood.TV.
Is The Case Book of Arne good? What's the rating?
The Case Book of Arne holds a 6.0/10 rating based on 6 reviews — a solid pick if the genre interests you.
Who is in the cast of The Case Book of Arne?
The main cast includes Mariya Ise, Koki Uchiyama, Aimi Tanaka, and Yuka Nukui, plus a strong supporting ensemble.
Is The Case Book of Arne available in Japanese?
Yes — The Case Book of Arne was originally produced in Japanese and that's the version you'll stream here on Bowood.TV. English subtitles are provided when available.
When was The Case Book of Arne released?
The Case Book of Arne first aired in 2026.
Do I need an account to watch The Case Book of Arne on Bowood.TV?
No. Bowood.TV is free and you can watch The Case Book of Arne without creating an account. Sign-up is optional — only useful if you want a personal Watchlist or to comment on episodes.
Similar Series You Might Like
If you enjoyed The Case Book of Arne, check out Bosco Adventure, The King of Fighters: Another Day, GRANBELM, given, and Astra Lost in Space.
Frequently Asked Questions
Where can I watch The Case Book of Arne for free?
You can watch The Case Book of Arne online for free on Bowood.TV. All 12 episodes across 1 season are available to stream in HD without a subscription, signup, or paywall. Just open the show page and press play.
How many seasons and episodes does The Case Book of Arne have?
The Case Book of Arne currently has 1 season and a total of 12 episodes. The series status is "Ended", so the episode count may grow as new seasons are released. You can browse the full episode list on Bowood.TV and continue watching from where you left off.
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… It belongs to the Animation, Mystery genres.
In which language is The Case Book of Arne originally available?
The Case Book of Arne was originally produced in JA. On Bowood.TV the show is available in its original JA audio. Check the player options on the watch page for available subtitle tracks.
When was The Case Book of Arne first released?
The Case Book of Arne first premiered on January 7, 2026 (2026). The series has since concluded its run.
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