An imaginary world similar to the late Warring States period in ancient China - the Dayan Dynasty. The dynasty appeared strong on the surface, but in fact suffered from internal and external troubles. There is a powerful grassland barbarian "Beidi" in the north, and there are princes, aristocratic families and other forces in the country that are intertwined and undercurrents are surging. War is the main theme of this era, but peace is the deepest desire of the people at the bottom.
