Su Yan, a modern sales champion, traveled through time and became a dandy in the Duke's palace. He was also deeply involved in the crisis of conspiracy and frame-up, and was almost killed by the eldest princess on the spot. He had no choice but to spend a lot of money to protect himself, but he was squandering money and his family was already destitute. In order to save his life, Su Yan used modern business ideas to reach a cooperation with the princess, who was his fiancée, and successively created novel industries such as milk tea, soap, and wine, gradually gaining huge wealth. He powerfully defeated all the opponents who tried to frame him, took the position of Duke Ding to assist the court, and eventually joined hands with the princess to stay together.
