The Case Book of Arne (known in Japan as Arne no Jikenbo), a 2017 supernatural mystery adventure game developed by HARUMURASAKI and published by Vaka Game Magazine, is being adapted into a TV anime.
Few details about the new anime project have been revealed so far, but it has been confirmed that original scenario writer Murasaki will provide series composition for the anime while original character designer Harutarou will provide the character designs.
Anime announcement celebration art by Harutarou
Since 2018, KADOKAWA has published a manga adaptation of The Case Book of Arne with artwork by Soraho Ina in their Monthly Comic Gene shojo manga magazine. An English language version of the game is also available on Steam. The story is described as follows:
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.”
Sources: The Case Book of Arne on X (formerly Twitter), Comic Natalie