Su Wan, the legitimate daughter of the Su family, married into the East Palace due to a family marriage and became the crown princess. However, she never gained the trust of her husband and was instead treated coldly and made things difficult for her. An unexpected incident allowed her to completely see the essence of this marriage. With the support of her father and brother, Su Wan resolutely chose to divorce and left the East Palace. The Queen Mother then granted a marriage, and Su Wan remarried the second prince Zhao Mingli. The two initially united because of their interests, but gradually established trust in the court disputes and power games. Facing the complicated palace situation, Su Wan used the power of her family to help, and Zhao Mingli treated each other with respect and protection. In the ever-changing political situation, they work together to cope with the crisis and move forward together.