After taking office as the magistrate of Chun'an County, the young champion Lu Jianglai repeatedly solved strange cases, but he was involved in an old case of murdering his wife, which caused him to fall from a rising star in the officialdom to a desperate situation. When he was on the verge of death, he was fortunately rescued by Rong Shanbao, the daughter of the tea king. The arrogant Lu Jianglai had once fought for power with the powerful Rong family, which led to Shanbao's deliberate revenge. Taking advantage of his serious injury and amnesia, and his identity being a mystery, he was taken home and demoted to the lowest groom. In order to avoid being hunted down, Lu Jianglai made the best of a mistake and pretended to obey. When the Rong family announced that they would recruit a son-in-law, it triggered a competition among the prominent families in Jiangnan, each with their own ulterior motives. Lu Jianglai was accidentally involved in it, and by mistake became a chess piece in the game between Shanbao and everyone else. One is an ambitious and resourceful heiress, the other is a rebellious, scheming young stable boy. They battle wits and courage, and fall in love with each other over time. They overcome all difficulties to solve old cases, catch the real murderer, join hands to reorganize the family, develop the tea ceremony, and conclude a love story in the tea garden.
