We betray for profit, yet redeem ourselves for conscience. In the third year of the Great Qian Dynasty, the emperor, cold as a deity, speaks, and thus the world is thrown into turmoil. A country bumpkin named Yang Xuan, bathed in starlight, walks into Chang'an City, holding a mysterious scroll from a millennium later, stepping straight into a whirlpool... until he stands above Chang'an. Yang Xuan clutches the scroll; the girl inside smiles sweetly, and Yang Xuan cries out, "Don't!"