You know him from Drunken Master story - legendary Beggar So. A martial arts scholar, who is accidentally injured and loses his memory when he oppresses the Tianmen sect that sells big cigarettes. When he was a beggar, he was taken in by Jin Zhi and Little Fruit's mother and daughter. Because the opium ointment leaked, Little Fruit was captured by the Heaven's Gate Sect, and Su begged to save the little girl who took care of her, Little Fruit, and destroyed the Heaven's Gate Sect's The story of the conspiracy and the eventual eradication of the Heaven's Gate religion with the government.

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"