Yin Ruxuan travels back to Zhao Gou, the emperor of the Song Dynasty when he was a child, and tells the story of how Zhao Gou ascended the throne, changed the pattern of the Song Dynasty, and regained the old mountains and rivers. In this process, the protagonist is an extremely humane minister, adheres to morality, thinks deeply about the country's plans, recruits talents from all parties, plans to win over all parties, and takes charge of the government step by step, turning waste into treasure, putting the country on the track of prosperity, and successfully regaining lost territory through the mediation of many parties, demonstrating the style of an emperor with great wisdom and courage.