Su Yao, a doctor of modern psychology, once traveled through time and became a concubine of an ancient prince's mansion, and unexpectedly gained the ability to read minds. In the crisis-ridden courtyard, she has insight into people's hearts and takes care of every step. From self-protection and resolving intrigues in the inner house, to coups in the outer court and treacherous events in the court, she relied on her understanding of human nature and inner tenacity to break through all the crises. However, knowing the secrets in everyone's heart is not gospel. Instead, it makes her face the darkness of human nature and the dilemma of morality. In her entanglements with Shen Moran, Lu Jinshu and others, she grew up to be a real planner, and finally understood that it is even harder to "understand one's own heart" than to "know people's hearts".
