After the Three Sovereigns established order and the Five Emperors expanded the borders, humanity became master of the land.
By then, the Nine Provinces had passed through the reigns of the Xia, Shang, and Zhou dynasties, and civilization was flourishing. Yet the gods of the Nine Heavens brazenly tore apart the heavenly firmament, unleashing a cataclysm unlike any the Three Realms had seen in ten thousand years. In the midst of this turmoil, the Great Zhou, sovereign over the Nine Provinces, was already in its twilight years, no longer able to control its feudal lords...
Thus began an age of feuding lords and heroes rising on every side.