Adapted from the classic domestic game "Xuan-Yuan Sword III: Scar of Sky". Chen Jingchou (Jiang Jinfu), the last prince of the Chen Kingdom, was idle and idle. His fate changed after he met Tuoba Yu'er (Liu Shishi), the second princess of the northern Tatta tribe. In order to rescue his master Chen Fu (Kaohsiung) and the survivors of the Chen Kingdom, he was forced to embark on the road of seeking revenge and restoration of the country in search of the five ancient artifacts. Yuwen Tuo (Hu Ge), a descendant of the Northern Zhou royal family, had a similar fate to Chen Jingchou but a completely different personality. With the help of his confidante Ning Ke (Tang Yan), he turned into a "sword maniac" and searched for the five artifacts with Jingchou and Yu'er. Later, they met Yu Xiaoxue (Guli Nazha), the daughter of Nuwa, and Zhang Lie (Lin Gengxin), the king of the Tatta tribe. Complex emotional entanglements arose between the six people. But things are far less simple than they imagined. The appearance of Scar of Sky gave everyone a new mission. Who is the real emperor of the earth? What is Ning Ke's true identity?