Wicked City(1987) Here

: Taki Renzaburo, a human "Black Guard" agent, and Makie, a beautiful demon agent, are assigned to protect a lecherous but vital diplomat, Giuseppe Mayart, who must sign the new treaty.

: Originally intended as a 35-minute short, investors were so impressed by the first 15 minutes of animation that they extended the runtime to a full 80-minute feature. Wicked City(1987)

The story is set in a world where a secret peace treaty has existed for centuries between the human world and the "Black World," a parallel dimension of shapeshifting demons. : Taki Renzaburo, a human "Black Guard" agent,

: Radical demon factions seek to block the renewal of the treaty to launch an all-out invasion of Earth. : Taki Renzaburo