Prince Cui Youjun and his cousin Lu Qichen were ordered to go south to investigate the salt tax, but they were involved in an elaborate conspiracy. From the assassination in the palace to the salt fields in the south of the Yangtze River, from the escape from Huai'an to the bloody battle in Yingtian, the two escaped step by step from the dragnet set by the eldest prince Cui Youning and the chief minister of the cabinet Yan Jin. On the way, they met Chen Xiyan, the daughter of the commander of the Nanjing Jinyi Guards, who wanted to file a petition for her father, and Lu Qichen's sister, Lu Qiyun. The four of them forged a life-and-death friendship in the whirlpool of power and intrigue, and headed north to Zhenyang Pass to find the protector of the country, King Lu Dao Renqin. And after everything is settled, what will happen to the four of them?
Concept: Machiavellian, heroine