Qin-style clothing was worn in the Han dynasty, then borrowed by the Tang dynasty for three hundred years as the fortunes of the realm turned. To fulfill a task entrusted to him by his master, Qiu Ranke, the young Yang Guangling sets out alone for the far north in search of the Celestial Palace atop the clouds. Instead, he unexpectedly finds the legendary White Jade Capital and uncovers the mystery of his own origins, leading him to discover a shocking secret.