In the middle and late Kaiyuan period of the prosperous Tang Dynasty, the Ming Dynasty gradually neglected the government affairs, Li Linfu's party dominated the government and the opposition, undercurrents surged in frontier vassal towns, and the old cases of the former Wu Zhou officials were buried. The Silk Road trade was prosperous, but private weapons and secrets were mixed. Chang'an, as the center of the world, connected criss-crossing the Twelve Streets, becoming the only stage for the intrigues of the court, the grievances of the rivers and lakes, the various scenes of the market, and the business affairs of foreign lands. Undercurrents of political intrigue + chivalry + market fireworks, multiple protagonists appear in parallel, each line forms an independent chapter but is connected with each other. Taking the 12th Street of Chang'an in the prosperous Tang Dynasty as the stage, it describes the ups and downs and choices of princes, knights, officials, musicians, merchants and hermits.
