Ji Yufei has been dreaming about a girl, Bai Qiu, who is very similar to her childhood friend who suddenly disappeared since she was sixteen years old. She has a heart-to-heart talk with Ji Yufei and Bai Qiu. In the dream, Ji Yufei is very happy and forgets all her worries.
Ten years have passed, and the girl in her dream is still with her, just the night before Ji Yufei's twenty-seventh birthday. She met the girl named Bai Qiu again, and the girl took her back to that night a hundred years ago. Ji Yufei saw two men plotting something. The standing one held a jade pendant in his left hand. The man's face was covered and only his eyes could be seen. The one sitting seemed to be the emperor. For some reason, Ji Yufei's heart skipped a beat, as if this matter had something to do with her. Ji Yufei listened carefully and found out that the emperor asked the masked man to take the jade pendant in his hand to find his daughter who was lost sixteen years ago. At Bai Qiu's signal, Ji Yufei realized that she was the emperor's lost daughter. When Bai Qiu told Ji Yufei what happened sixteen years ago and that he had been protecting her all these years, Ji Yufei was extremely shocked. Ji Yufei promised Bai Qiu to return to his father and secretly help his father.