The world of gothic mystery and fantasy returns with the upcoming The Case Book of Arne anime, which has officially confirmed its premiere date for January 6, 2026. The announcement was accompanied by a new trailer and key visual that give fans a closer look at the enigmatic world of vampires, detectives, and dark secrets.

Trailer and Theme Songs

The latest trailer showcases the show’s moody tone and stunning animation, while also highlighting its atmospheric soundtrack. The opening theme “Q.E.D.” will be performed by Sou, while the ending theme “Ningyo no Machi” will be sung by Watashi Kobayashi, both perfectly fitting the eerie yet emotional tone of the story.

The visual centers around Arne Neuntote, a mysterious vampire detective, and Luis Hartman, a curious human caught in the middle of otherworldly investigations. The haunting aesthetic and intricate character designs hint at a story rich with secrets and heart.

Cast and Characters

The main cast features an impressive lineup of voice actors who bring depth to the gothic world of Arne. The confirmed cast includes:

  • Mariya Ise as Luis Hartman

  • Koki Uchiyama as Arne Neuntote

  • Aimi Tanaka as young Arne Neuntote

  • Yuka Nukui as Lynn Reinweiss

Each character plays a vital role in the unfolding mysteries, with Arne’s sharp intelligence and Luis’s human curiosity serving as the emotional and narrative core of the series.

Studio and Creative Team

The anime is being produced by Studio SILVER LINK, known for its detailed visuals and emotionally charged adaptations. Keisuke Inoue serves as the director, while Murasaki and Inoue co-write the series composition. Akiko Sato and Harutaro handle character design and animation direction, ensuring the art stays true to the original vision of the game.

Music is composed by Yoshiaki Fujisawa, who brings a haunting yet elegant score that complements the show’s supernatural mystery theme.

From Game to Screen

Based on the popular visual novel by Harumurasaki, with designs by Harutaro, The Case Book of Arne tells the story of a vampire detective and a young girl who investigate strange cases involving non-human entities. Set in a world where the paranormal intertwines with human society, the series explores themes of trust, morality, and the thin line between monster and man.

The game gained attention on Steam for its dark storytelling and emotionally gripping narrative, and the anime promises to expand that universe with cinematic flair and fresh storytelling.

A Dark Mystery Awaits

With its gothic tone, layered characters, and emotional depth, The Case Book of Arne is shaping up to be one of the most atmospheric anime releases of 2026. Fans of mystery, fantasy, and visually rich storytelling can expect an experience that blends suspense and sentiment in equal measure.


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