Chu Nanzhi, an Interpol agent, transmigrated to the final years of an empire, becoming a notoriously evil mother of four children. However, despite facing execution on the first day, she used her specialties from her previous life to clear her husband's name, saving herself and her children. On the way home, however, Lin Jinxiao was still spiteful and wary towards her. Looking at the four children and Lin Jinxiao, who was injured and bedridden, Chu Nanzhi did not want to end up a joke. She decided to get an amicable divorce after Lin Jinxiao after recovered, while taking care of the children for a while. Still, the favor of the county magistrate and various nobles allowed Chu Nanzhi to strengthen her reputation as an investigator. She aided the magistrate in solving many cases while slowly changing her neighbors' opinon of her. Naturally, when she asked for a divorce, her four children were the first to protest. When she left for a new case, the children were worried she would run off. "Mother, we are coming too." When she headed to the capital, her husband grabbed her hand, refusing to let go. "You're a mother of four children now." Eventually, Lin Jinxiao became emperor, and held Chu Nanzhi in his arms as he said, "You've been leaving home to solve cases for years, but now you can stay in the palace! Because I have a case!"