To protect his fortune, billionaire Zhixiong Lin gives his daughter Lindan a crystal necklace with a hidden USB drive with all of his overseas banking info. After a criminal syndicate manufactures a car crash that kills Lindan and sees the USB go missing, the investigation is further complicated by the emergence of a woman identical to Lindan.

In the first year of Emperor Daizong of the Tang Dynasty (763), Hua Xing, a descendant of Hua Tuo, went to Chang'an to ask for the medicine to save his father Hua De's life. When they came to Fengling Town, they encountered the "Assassin Alliance"