In the thirteenth year of Yongxi's reign, Dayong was in dire straits: the cavalry of the Black Water Ministry in the north pressed on the border, and the Taifu Yan Song framed and imprisoned the general Lu Zheng of Zhenbei. He also had liaison with foreign enemies, embezzled military supplies in an attempt to seize imperial power, and his daughter Yan Guifei deceived the emperor in the harem and disrupted the government. Historian Su Yanshi is the daughter of an wronged deputy general. She secretly possesses evidence of military talisman remnants and military rations incognito. She secretly allied with Lin He, the commander of the Forbidden Army, and uncovered the account books in the Wenhua Palace to tamper with the truth. She captured the strict party's messenger, exposed the secret letter of collaboration with the enemy, and rescued Lu Zheng. The three then worked together to transport food through secret passages to relieve military needs, set up an ambush to repel the Black Water Division, and finally eliminated Yan Song's gang members at the celebration banquet. In just a few months, they reversed the crisis and protected Dayong Zhouquan.
Purpose: Praise for the loyal and good people who use their meager strength to resist the darkness and protect their country in troubled times.