Ye Yuanan is the daughter of the Assistant Minister of Revenue during the Tang Dynasty. Somewhat of an amateur sleuth, Yuanan loves solving mysteries and is constantly in competition with Zhao Lanzhi, a police officer who is trying to do his job. Yuanan has the assistance of Mu Le, a young man she took in as a family servant after saving him from danger. But what will Yuanan do when she discovers Mu Le’s true identity?