In the past, the ancient divine beast Qilin forged seven swords, including Xuanyuan and Chengying, and inspired seven practitioners in the world to become the heirs of the Seven Swords. At the same time, a snake demon in Changshou City who has practiced for thousands of years, in order to increase his cultivation, mutilates living beings. The Descendants of the Seven Swords, adhering to the duty of guarding the peace of the world, fought the snake demon on the Black Devil Cliff and sealed it.
A boss of a toy corporation, Chenggong Li, tries to head back to Chan Sar to celebrate the Chinese New Year with his family. However, plans don't go as smoothly after he crosses paths with a stranger, Geng Niu.
During China's Tang dynasty the emperor has taken the princess of a neighboring province as his wife. She has borne him two sons and raised his eldest. Now his control over his dominion is complete, including the royal family itself.
