Another world exists beyond the one that humans can see–a world populated by demons. For centuries, demons have crossed into our world, some looking for a new life, adventure, or just a job. But many are intent on causing chaos and destruction, feasting on human flesh and fear. A tenuous Peace Treaty is the only barrier between the worlds, the only thing protecting humankind from utter devastation.

Every hundred years the Treaty must be renewed—and the time for that secret ceremony is at hand. Violent demonic splinter factions that are hell-bent on destroying the ancient pact are preparing to assassinate a key figure who is vital to the signing ceremony.

Enter the Black Guard, a secret police force that protects the boundary between the dark world and our own. It's the job of two Black Guard agents—Makie, a gorgeous demon, and Taki, a hard-boiled human—to form an unlikely partnership, stop the assassination, and avert an all-out war. But to save both their worlds, they must risk not only their lives, but their very souls!

日本青山學院大學法學院畢業，在成為小說家前當過自由記者，1982年以《魔界都市〈新宿〉》出道，出版過《魔界都市》、《吸血鬼獵人D》等許多系列作品，當中還有被製成動畫、翻拍成真人版電影，或改編成漫畫。除了小說外還著有許多恐怖電影的解說書籍；直到現在（包括文庫化小說在內）都還以每月發行數本作品的步調寫作，和日本暢銷作家夢枕獏兩人是傳奇小說的代表人物。

另外，爵士樂家的菊地成孔是其親弟。

http://zh.wikipedia.org/wiki/%E8%8F%8A%E5%9C%B0%E7%A7%80%E8%A1%8C