Kazuya Hattori (23) joined the Tokyo Police Force after his parents were mysteriously murdered. But he’s not a simple detective. He works for the Paranormal Department, specialising in yōkai crimes. With the help of an upbeat half-dragon-kami named Kenzō (22) and a charming half-dog-yōkai named Inuko (22), Kazuya solves the cases involving these supernatural beings.

All the while, Kazuya looks for his parents’ murderer. The clues point to his father’s old nemesis, Genzaburō Kagenashi, a nine-tailed fox yōkai and the boss of Tokyo’s strongest yakuza clan. But to arrest him, Kazuya must rediscover the incriminating evidence that his father, Detective Jin Hattori, found and never lived to reveal.