During the Yongle period, the nautical charts brought back by Zheng He's treasure ship concealed mysteries, and the rubbings on the Yongning Temple stele contained the key to territorial disputes. Su Mo, the commander of the Jin Yiwei, was ordered to trace the secret language in the map, but he was involved in the fierce game of the "Ji Si Territory" in the court - some people advocated using Nu'er Gandusi as the base to expand the north, while others advised him to abandon the location to defend the core.
From Jiayuguan to Sakhalin Island, from Uszang to the Hetao Plain, Su Mo followed Yishiha's border patrol footsteps, witnessed the rebellion of the Seven Guards of Kansai, and experienced the helplessness of the Kaiping Guards' inward migration. He discovered that the so-called "territory puzzle" was actually a difficult choice between the cost of expansion and the ability of governance for agricultural empires.
When the Xuande Dynasty ordered to shrink, the lands that once held the flag of the Ming Dynasty gradually disappeared. The scroll in Su Mo's hand will eventually write down the code behind the territorial changes, the rise and fall of national power and the support of the people.
