Youjuu Toshi / Wicked City / City of monsters

Parallel to our world, there is another - the Black World, which is teeming with demons and monsters capable of changing their appearance through sorcery. The collision of the worlds was inevitable, and the consequences irreparable. Therefore, a truce agreement was signed between the worlds for five hundred years, and on both sides of the gate, guards were placed - the so-called Black Guards, which include representatives of both sides. Five hundred years passed, and an old medium, Giuseppe, came to conclude a new treaty. He is the only one who has the right to make a new agreement with the upper world. However, a conspiracy has matured in the Black World, originating from a certain dark sect that aims to disrupt the important agreement and sow chaos in both worlds. Now the fate of the world is in the hands of the Black Guard Taki and his partner - the irresistible Maki, a demon woman...