Shen Yan, 26 years old, was born in the Guanzhong gentry. He once served as a meritorious official in Jingzhao Prefecture (responsible for public security documents in the capital). Because of his upright character and offending the powerful, he was demoted to the "Shi Ling" (official in charge of market order) of the West City. He is proficient in calligraphy and has people's livelihood at heart. He looks calm and reserved, but in fact he hides his worries about the current situation.
Su Wan, 22 years old, is the daughter of a wealthy businessman from the south of the Yangtze River. She came to Chang'an with her father to run a silk and satin shop. She is smart and transparent. She is not only good at business and accounting, but also secretly learned swordsmanship (a skill passed down from family to protect herself). She yearns for the free atmosphere of Chang'an, but is repeatedly restricted in her business due to her status as a woman. She has a strong-willed personality and is soft on the outside but strong on the inside.
At the end of the Kaiyuan period of Emperor Xuanzong of the Tang Dynasty, Chang'an was extremely prosperous, with business and travel along the Silk Road, and merchants, literati, and knights gathering together. However, under the superficial prosperity, the power of the vassal town was gradually increasing, and the undercurrent of factionalism in the court was surging, which laid the foundation for the love between the two.
