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…
Lynn remembers the time she first met Arne and hired him to help investigate her father's suspicious behavior.
Mariya Ise
Louis Hartmann (voice)
Koki Uchiyama
Arne Neuntöte (voice)
アルネの事件簿
Now playing Season 1, Episode 2 — There Is Always Sunshine After the Rain
January 7, 2026
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Season 1 • 12 episodes
Louis Hartmann joins forces with the members of the Arne Detective Agency to investigate his father's murder.
Lynn remembers the time she first met Arne and hired him to help investigate her father's suspicious behavior.
Arne makes a shocking discovery about Lynn's father and Gordon reveals the dark truth of the Reinweiß mansion.
Lynn and Arne are both troubled by surprise encounters that threaten to alter the course of the investigation.
Lynn and Arne assemble the servants to review the clues and sniff out the killers through deductive reasoning.
A distraught mermaid arrives at the detective agency searching for the reason why her lover tried to kill her.
Arne tracks down a jewel thief while Lynn investigates a series of disappearances connected to an art museum.
Lynn and Arne trace the mysteries of the missing men and lost piece of jewelry to their shocking conclusions.
Arne and Lynn are asked to investigate a man who appears to have started cheating on his wife after an injury.
Arne decides to investigate a locked-room murder on a whim and soon realizes that it may not be what it seems.
Arne uncovers a disturbing connection between all five of the cases investigated by the Arne Detective Agency.
Lynn and friends battle their way through Dracula's soldiers as they race to rescue Arne before it's too late.
SILVER LINK.
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Asmik Ace
JP
Nippon Television Network Corporation
JP
King Records
JP
Vaka
JP
Aimi Tanaka
Young Arne Neuntöte (voice)
Yuka Nukui
Lynn Reinweiß (voice)
Yuki Sakakihara
Zisye (voice)
Yuuki Shin
Nachzehrer (voice)
Yoko Hikasa
Amy (voice)
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