Jiang Bao Ning, the princess of Jianan County, grows up in the palace since childhood. She remains carefree despite knowing that there is no freedom within the palace walls and does not want to be used as a puppet. Thus, relying on her own ingenuity, she resists the fate of becoming a tool in the inner palace fighting. Li Qian, a guard of the Imperial Army, wants to understand the truth behind some events many years ago. He works hard to seek a higher position in the palace, just to get relevant clues. They are two people with vastly different personalities who meet by chance and love each other. In order to reverse their own destiny, they work together, look forward to breaking through the barriers of identity and stay with their loved ones for a lifetime. Adapted from the novel "Mu Nan Zhi" (慕南枝) by Zhi Zhi (吱吱).