In a novel, the female protagonist is a secret agent who transmigrated, and the male protagonist's family is a royal merchant.

The novel you mentioned is called " Special Agent Crossing: The Gorgeous Royal Merchant ". This was a very popular modern urban novel about a modern agent who traveled to ancient times and became the heir of an imperial merchant. In this ancient world, she used her modern knowledge and skills to become an outstanding businessman and politician. At the same time, she also gained many opportunities and challenges in the business world and politics. The male protagonist in the novel was a powerful emperor whose business empire was built on the foundation of prosperous royal merchants. The female protagonist was one of his most trusted advisors who helped him formulate a series of effective commercial policies to promote the country's economic prosperity.