Mo Yi was an ordinary woman, but after falling asleep, she found herself a thousand years in the past, in the Yongsheng Dynasty, living as Yan Yuyue. She was also forced to marry the crown prince, Huangfu Qingyi. The prince was surrounded by beautiful women, but he gradually changed after their wedding. Just as Mo Yi opened her heart and accepted their relationship, she discovered that Huangfu Qingyi was distancing himself from her. Was their former affection false, or was it true love? Why was Huangfu Qingyi acting this way? Had he never loved her, or was he trying to protect the woman he loved from harm? What was she supposed to do now?