After being framed in an old murder case, rising magistrate Lu Jianglai loses everything. Rescued by tea magnate’s daughter Rong Shanbao, he is forced into servitude as part of her revenge. As they navigate power struggles and hidden agendas, they uncover secrets, solve mysteries, and transform the tea trade—ultimately forging an unexpected bond that changes their fates.

Luo Wanwan, the outspoken "chivalrous woman" and daughter of the Director of the Ministry of Rites, was involved in a murder case on the way to escape from marriage. She and her husband, Li Yichen, the young minister of Dali Temple, became a pair of "enemies" without knowing each other. In order to find out the truth, she disguised herself as a man in Dali Temple and became Li's assistant. Together, they fought crime, solved crimes, upheld justice, and developed an ironic romance.