E12
12. All's Well That Ends Well
Lynn and friends battle their way through Dracula's soldiers as they race to rescue Arne before it's too late.
Latest episode
S1 E12 · All's Well That Ends Well
The Case Book of Arne is a mystery anime series that premiered on Nippon TV on January 7, 2026. It has 1 season and 12 episodes so far and has ended. The latest episode, Season 1 Episode 12 "All's Well That Ends Well", aired on March 25, 2026.
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…
Last updated
12 episodes · 1 season
2026 · 12 episodes · Last episode: 7 months ago
E12
Lynn and friends battle their way through Dracula's soldiers as they race to rescue Arne before it's too late.
E11
Arne uncovers a disturbing connection between all five of the cases investigated by the Arne Detective Agency.
E10
Arne decides to investigate a locked-room murder on a whim and soon realizes that it may not be what it seems.
E9
Arne and Lynn are asked to investigate a man who appears to have started cheating on his wife after an injury.
E8
Lynn and Arne trace the mysteries of the missing men and lost piece of jewelry to their shocking conclusions.
E7
Arne tracks down a jewel thief while Lynn investigates a series of disappearances connected to an art museum.
E6
A distraught mermaid arrives at the detective agency searching for the reason why her lover tried to kill her.
E5
Lynn and Arne assemble the servants to review the clues and sniff out the killers through deductive reasoning.
E4
Lynn and Arne are both troubled by surprise encounters that threaten to alter the course of the investigation.
E3
Arne makes a shocking discovery about Lynn's father and Gordon reveals the dark truth of the Reinweiß mansion.
E2
Lynn remembers the time she first met Arne and hired him to help investigate her father's suspicious behavior.
E1
Louis Hartmann joins forces with the members of the Arne Detective Agency to investigate his father's murder.
The Case Book of Arne has ended, so no new episodes are scheduled. The final episode aired on March 25, 2026.
The most recent episode of The Case Book of Arne, Season 1 Episode 12 "All's Well That Ends Well", aired on March 25, 2026.
The Case Book of Arne has 1 season with 12 episodes in total.
The Case Book of Arne first aired on Nippon TV on January 7, 2026.
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The Case Book of Arne
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