Lin Yue, a modern social animal, accidentally traveled through time after being betrayed and became Wan Zhen'er who took care of the young prince Zhu Jianshen in the Ming Dynasty. At that time, just after the Tumubao Incident, Yingzong was captured and Daizong seized power. Zhu Jianshen was in a precarious situation. Lin Yue used modern wisdom to protect him from the plot and accompany him through the difficult years of Nangong's house arrest. As they got along day and night, the young prince gradually became more and more dependent on her, and when he grew up to be an emperor, he doted on her alone. She did not want to repeat the bad reputation of Wan Zhen'er in history. While guarding this deep love that transcended ages, she secretly protected the emperor's heirs and helped the emperor manage his affairs. In the end, she rewrote the legend of their incestuous love in the Ming Dynasty court.
