It tells the love story between Emperor Zhao of the Han Dynasty Liu Fuling and the civilian girl Qiguan Biju during the Western Han Dynasty. Biju originally lived a happy life in Qingshui County. A conspiracy and an accident led Biju to meet Liu Fulin, and she also learned that she was not the biological daughter of Dr. Qi Guanyuan.
Biju came to Chang'an, her birthplace, alone, and after many twists and turns, she was finally able to settle down in the princess's mansion. Her eldest brother Qi Guanyin and her friends Zhang Wuge and Xue Zhaoyang also came to Chang'an. Just as Biju was immersed in the joy of reunion, she was accidentally involved in the court. In the midst of the conspiracy struggle between the two major factions in the court, the Huo family and the Shangguan family, at this time, the confession of her eldest brother Qi Guanyin also made Biju feel in a dilemma. Can she reunite with Liu Fulin again, and will the two break through the obstacles and live forever?