A vampire who practices detective work under the belief that “solving mysteries is meant to be enjoyed.” Originally the “most fearsome” being with nine hearts, he has now lost several of them and switches between the forms of a boy and an adult depending on the situation.

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)

__Height:__ 177 cm 
__Agency:__ Gekidan Himawari  
__Awards:__  Best New Actor at the 5th Annual Seiyuu Awards (2011)  

[Profile](https://profile.himawari.net/view/1559)

Koki Uchiyama is a Japanese actor and voice actor from Saitama Prefecture affiliated with Himawari Theatre Group.

__Non-Anime Roles:__
~!- Lean - Final Fantasy Type 0 (VG)
- Ventus, Roxas - Kingdom Hearts (VG)
- Neku Sakuraba - The World Ends With You (VG)
- Banagher Links - Mobile Suit Gundam: Gundam vs. Gundam Next (VG)
- Rinne Rokudo - Kyoukai no Rinne (VG, PV)
- Enma Kozato - Katekyo Hitman REBORN! (Vomic)
- Razor - Genshin Impact (VG)
- Rean Schwarzer - The Legend of Heroes (VG)
- Protagonist - Persona 5: The Phantom X (VG)
- Susanoo - Onmyoji (VG)
- Desast - Kamen Rider Saber (TV series)
!~


__Agency:__ 81 Produce

__[Profile (81 Produce)](https://www.81produce.co.jp/dcms_plusdb/index.php/item?cell003=%E3%81%9F%E8%A1%8C&label=1&cell004=&name=%E7%94%B0%E4%B8%AD%E3%80%80%E3%81%82%E3%81%84%E3%81%BF&id=241) | [Blog](https://ameblo.jp/kanataimi/) | [Twitter](https://twitter.com/kanataimi) | [Instagram](https://www.instagram.com/kanataimi/) | [YouTube](https://www.youtube.com/channel/UCuNJGVAHVT_A6q5GSFpKjHg)__

Tanaka is voice provider for the VOCALOID [Otomachi Una](https://anilist.co/character/251228/Una-Otomachi), who debuted in VOCALOID4.

__Non-Anime Roles:__
~!• Rei - Goddess of Victory: Nikke (VG)
• Royal Fortune - Azur Lane (VG)
• [Himiko Yumeno](https://anilist.co/character/131662/Himiko-Yumeno) - Danganronpa V3 (VG)
!~