The world only knows Chaitoufeng, but no one knows Zhao Shicheng. Lin Susu, a female surgeon doctor, drowned while swimming. She traveled to the Song Dynasty and became Tang Wan's cousin Tang Yu. She advised her sister not to marry Lu You, her mother's son, but to choose Zhao Shicheng, the infatuated prince of the county. However, Tang Wan insisted on going her own way and married into the Lu family. In the Lu Mansion, Tang Wan was heartbroken after suffering all the cold looks from her mother-in-law and abuse from her sisters-in-law. During his relationship with Zhao Shicheng, Tang Yu discovered that Zhao Shicheng was, as history said, upright and infatuated, a good match, so he tried every means to marry him. Unexpectedly, Zhao fell in love with Tang Wan at first sight, and finally went through difficulties and married Tang Wan into the family after being forced to divorce due to childlessness. The two sisters served the same husband together, which made Tang Yu suffer in his heart. Especially Tang Wan always had an indifferent attitude towards Zhao Shicheng. Tang Yu was deeply affected by the fact that the person he loved deeply loved his sister. In order to fulfill Zhao Shicheng's eternal infatuation, she tried her best to make her sister fall in love with her husband. But after a visit to the park, his success fell short. Tang Wan could never forget Lu You and died in depression. Zhao Shicheng was sad and went to the border. Tang Yu accompanied him to defend the city, and eventually they both died...
