Princess Su Shiwan escaped from the palace on the ninth day of the Great Zhou Dynasty, hoping to find her beloved Qin Yuchuan, who had left without saying goodbye three years ago. During the process of evading the messenger, the jade pendant symbolizing the princess's identity fell off and was picked up by Su Qingyu. Therefore, Su Qingyu was mistaken for a princess, and Su Shiwan was repeatedly humiliated. What made her even more desperate was that Qin Yuchuan, whom she had finally found, was extremely indifferent to her. Under the sadness of Su Shiwan, she decided to return to the capital with her brother, Crown Prince Su Jingyu, who had come to pick her up. Little did she know, their intimacy deepened the misunderstanding between Qin Yuchuan and Su Jingyu. When Su Shiwan was bullied by the local county magistrate, Su Jingyu arrived and revealed Su Shiwan's identity. Qin Yuchuan then realized that he had misunderstood Su Shiwan all along. He humbly begged for Su Shiwan's forgiveness, but Su Shiwan, who was hurt by him and disheartened, was determined to cut it off. After several entanglements, Su Shiwan met her destined person Jiang Yanzhou, and Qin Yuchuan also knew that he had completely lost Su Shiwan and chose to go far away