Watch The Case Book of Arne (2026) Free Online

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…

The Case Book of Arne is a 2026 animation and mystery TV series starring Mariya Ise, Koki Uchiyama and Aimi Tanaka. The series has 1 season and 12 episodes.

  • First aired: 2026-01-07
  • Seasons: 1
  • Episodes: 12
  • Status: Ended
  • Genres: Animation, Mystery

The Case Book of Arne cast

Mariya Ise, Koki Uchiyama, Aimi Tanaka, Yuka Nukui, Yuki Sakakihara, Yuuki Shin, Yoko Hikasa

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