This article is an ancient Machiavellian romance novel set in the Northern Song Dynasty. It uses the struggle between twin brothers for imperial power as the core narrative skeleton, and the legendary experience of the Dali princess who disguised herself as a man to go to the Song Dynasty as the narrative main line. It integrates multiple elements such as palace intrigue, Jianghu rebels, family and country justice, love and hate entanglements, and centers around "legitimacy and usurpation," "light and darkness," "gentleness and violence." The core confrontation unfolds a legendary story about revenge, redemption, understanding and protection that took place in the troubled times of the Central Plains Dynasty. The full text depicts a three-dimensional and vivid group of characters with delicate brushstrokes, and promotes the escalation of conflicts with layers of progressive plots. There are not only the turbulent political intrigues in the court, but also the heart-stirring two-way emotional line, and the pattern of family and country that cares about the common people.