Arne Neuntöte is a vampire detective who manipulates the power of xenomorphs. Lynn Reinweiß is a nobleman’s daughter who loves vampires. They live in a world that will never cross over, 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 "Rügenberg", where the deformed inhabitants live. A girl'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 red moon.”

Arne Neuntöte is a vampire detective who manipulates the power of xenomorphs. Lynn Reinweiß is a nobleman’s daughter who loves vampires. They live in a world that will never cross over, 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 "Rügenberg", where the deformed inhabitants live. A girl'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 red moon.”