Liu Hanze, a graduate student in the Department of Modern History, traveled to the fifteenth year of Chongzhen and became an unknown sixth-rank chief of the Ministry of War. At that time, the Ming Dynasty was suffering from internal and external troubles - Li Zicheng's army was directly targeting the capital, the Manchu and Qing cavalry outside the pass were eyeing him, the factions in the court were constantly fighting, and the headstrong and suspicious Emperor Chongzhen had fallen into a desperate situation where no one could help him.
Relying on its familiarity with the history of the late Ming Dynasty and modern military thinking, it gradually won the emperor's trust by using "improved gunpowder" and "organizing and training of new armies" as breakthrough points. He teamed up with Sun Chuanting to reorganize the army, borrowed Western firearms to improve the frontier troops, and used political and horizontal tactics to drive a wedge between the Manchu and Mongolian tribes. However, the inertia of history is as heavy as a mountain: the secret arrows of party strife, the repetition of Chongzhen, the long-standing chronic illness among the people, and the knot of the emperor who should have hanged himself in Meishan, all make the road to change one's fate against the odds full of thorns...