According to ancient documents, there is a magical city in the world called "Blood City". Those who can enter the "Blood City" can obtain the gifts of the "Blood City", or achieve eternal hegemony, or gain the unification of immortality, or resolve old grudges, or form a beautiful marriage...
However, no one in the world has ever seen this city, and they all regard it as a myth and legend. Who would have thought that on the night of a total lunar eclipse, the legend of the "Blood City" would actually be confirmed.