"The Spies of Xuanhe: Patching the Sky with an Iron Fist" is set in Bianliang in the Northern Song Dynasty during the third year of Xuanhe's reign. It tells the story of modern archaeologist Lin Fu who accidentally traveled across time after touching a gilded bronze mirror, transformed into a Jeju scholar, took over as a promotion official in Kaifeng Prefecture, and was involved in a shocking espionage case. When he first entered Bianliang, he started with the disappearance of a scholar in the west corner of the city and uncovered the secret agent Yeluhachi of the Jin Kingdom. However, he unexpectedly uncovered a huge network of collusion between the court and the Tianlang Guards of the Jin Kingdom. Relying on modern criminal investigation thinking and historical understanding, he broke through the judicial shackles of the "Jiuji Branch", uncovered the conspiracy to extort confessions in prison, traced financial and tax corruption loopholes, uncovered the hidden core of the Silver Fox spy network, and faced the counterattack of powerful traitors such as Cai Jing and Tong Guan. From the turbulent undercurrent in Kaifeng Mansion to the clash of cavalry at the border of Yanyun, Lin Fu relied on the historical trajectory in the USB flash drive to break the situation with an iron fist and consolidate the army. He not only disintegrated the conspiracy of the Jin Kingdom to go south, but also changed the fate of writing the shame of Jingkang.
