He lives with his father, who runs the Hartmann Detective Agency in Blumstadt. He loves comics featuring monsters and heroes, but also possesses his father's keen observational skills. His catchphrase is, “The case is happening in the real world!”

Arne Neuntöte is a vampire detective who manipulates supernatural powers. Lynn Reinweiß is a nobleman’s daughter who loves vampires. Their worlds should never have crossed, but they join hands to solve a bloody mystery. 

In the darkest of nights, Lynn finds herself in desperate need of help. Then she wanders into the mysterious city of "Lügenberg", where non-humans live. Lynn's world changes drastically when she encounters "Arne", a vampire who is called "the worst" in the city. And tonight, a new "murder case" has occurred. What is the truth behind the bizarre incidents that take place in a world where humanity and the bizarre intersect?
 
"Come on, human. You may dance merrily under the crimson moon.” 
(Source: The Case Book of Arne Steam page)

**[Profile (Across Entertainment)](http://across-ent.com/talent/women/mariya_ise.html) | [Twitter](https://twitter.com/Ma_ri_ya_i) | [Instagram](https://www.instagram.com/mariya_ise/) | [Blog](https://ameblo.jp/mariya-i/)**

**Mariya Ise** is a Japanese actress and singer affiliated with Across Entertainment.

**Non-Anime Roles:**
- Camellya - Wuthering Waves (VG)
- Magallan - Arknights (VG)
- Mecklenburg - Azur Lane (VG)
- Leo - Epic Seven (VG)
- Wendy - Path to Nowhere (VG)
- Raeon - Echocalypse: The Scarlet Covenant (VG)
- Reo Kamiyama - Persona 5: The Phantom X (VG)
- Farrah - Granblue Fantasy (VG)
- Helel ben Shalem - Granblue Fantasy Versus: Rising (VG)
- Crazy Taxi - 404 Game RE: SET (VG)
- Lilyiro - Soul Tide (VG)
- Lupina - Guardian Tales (VG)
- Kudan - The Caligula Effect 2 (VG)
- Tiger Lily Cookie & Sherbet Cookie - Cookie Run: Kingdom (VG)

Louis Hartmann