The World of Hideyuki Kikuchi, Part 2: Wicked City

I still cannot understand how Hideyuki Kikuchi, who admits to being a fan of Western films, the Cowboy-era in the Wild West, has so successfully applied Lovecraft's ideas on japanese paper, adding to them a handful of brutal violence.
Wicked City is an example of this incest - Kikuchi adapts the world of Lovecraft by giving it sinister intellect and a thirst for destruction without removing the mask of mystical evil that springs from beneath the feet of the characters.

Annotation (Goodreads):
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!

Violence, sex and body horror - there are huge quantities of them.
I can't miss mentioning the anime movie (1987) that made Yoshitaka Kawajiri debut as a director. In my opinion, a great debut for the creator of  Ninja Scroll and Vampire Hunter D: Bloodlust.
I find a similar atmosphere in other works by Kikuchi - Darkside Blues, Demon City Shinjuku and Taimashin.
Although some literary fans are not particularly impressed with the story, the book serves as scripts for the 1992 Hong Kong movie of the same name, featuring some of the biggest local stars - Jacky Cheung and Leon Lai.