Ruthless is the most imperial family. Wu Zetian's favorite daughter, Princess Yufeng, Li Yue, has been suffering from a serious illness since she was a child. She is jealous of Princess Taiping. Tired of the palace battles, she tries her best to escape from the palace and hides in the world. She encounters the mysterious and pure young man Qu Yang and the cold and distant doctor Xie Junkai. The world is changing and people's hearts are unpredictable. Although she is a princess, she has been misunderstood and plotted against her. She has been resented and grievances. What is "Yu Feng Jue"? What is Lengxiang Valley? There were grievances and grievances in the rivers and lakes, wars and wars, and if there were any seemingly non-existent feelings, she was deeply involved in them, wandering painfully in worries about gains and losses. Is it joy? Is it sad? Is it resentment? In this shocking mystery, where should she go?