Wicked City (1987)
A peace treaty between the Earth and the Black World, a parallel universe of demons, is coming to an end. Two cops, Taki, a human male, and Maki, a female demon, are assigned to protect a diplomat who will help secure another treaty. A radical group of demons from the Black World are out to assassinate the diplomat and prevent the treaty; only the bond that forms between the two cops can save the Earth from destruction. sadism, based on manga, tentacle, demon, adult animation, peace treaty, anime, interspecies romance, terror, science fiction, monsters, animation, spider women