Under the surface of the bustling modern city, there is a fantasy world originating from the ancient East. In ancient times, the twelve spiritual beasts who followed the Yellow Emperor to pacify the four directions were given the power of the stars and became the "descendants of the stars" who guarded the order of the world. Their bloodline is passed down from generation to generation, awakening in specific descendants.
However, with the development of industrial civilization, humans gradually forgot and questioned myths, causing the power of the stars to continue to decline. The "balance between heaven and earth" that maintains the balance between the two worlds is collapsing, and abnormal supernatural phenomena ("foreign signs") are beginning to appear in the city.
