Cheng Xi, a master of modern psychology, accidentally traveled to an imaginary ancient dynasty and became an unpopular concubine. In an accident, she gained the ability to read minds and can hear other people's voices. In order to survive in the crisis-ridden ancient times, Cheng Xi carefully used mind-reading skills to protect himself. She gradually got involved in the power struggle among the princes, and fell in love with the prince Murong Jin, who was gentle on the surface but deep in heart. At the same time, she also faced conspiracies and challenges from all sides. During the court struggle, Cheng Xi relied on his wisdom and mind-reading skills to uncover the truth step by step, and finally helped Murong Jin ascend to the throne, but he also saw clearly the cruelty behind power and the complexity of human nature. She finally chose to leave the palace to find her own freedom and happiness.