The drama is adapted from the best-selling novel of the same name by Mao Ni. It follows the previous season. Fan Xian (played by Zhang Ruoyun) leads the mission on his way back. The second prince threatens Fan Xian with the safety of Fei Jie, Fan Sizhe and the Teng family orphans, forcing him to surrender to him. The conflict between the two aroused. The mystery of Baoyue Tower that Fan Xian faced and the ensuing Chunwei crisis were all traps carefully laid by the second prince for Fan Xian.

Fan Xian and Lin Waner got married as they wished. Immediately afterwards, Fan Xian took over the inner treasury, but found that the inner treasury was heavily in debt. Fan Xian refused the help of Qing Yutang's boss and decided to rely on his own strength to solve the internal treasury crisis. Fan Xian invited all the merchants in the city to gather in Cangshan Mountain and raised more than 20 million silver taels by selling "treasury debts" to solve the internal treasury crisis. Library empty problem.

At the Xuankong Temple, Emperor Qing suffered three consecutive assassinations. Fan Xian came to the rescue, but his martial arts skills were completely disabled. Surrounded by crises and increasing pressure, Fan Xian has no choice. He must go to the south of the Yangtze River in this body to challenge the huge forces and established rules of the game in order to completely regain the inner treasury.