In March 1644 AD, Li Zicheng's troops came to Beijing, and the life of the Ming Dynasty hung on a thread. Zhu Youjian, a professor in the Department of Modern History, became the Chongzhen Emperor Zhu Youjian at the moment of time travel. He faced a dead city where disease was rampant and the military morale was disorganized.
When everyone thought that history would repeat the tragedy of Meishan, an existence called the "Ming Dynasty Revival System" activated the modern knowledge in his mind. He started by controlling the plague and stabilized the chaos in the capital; relying on his deep understanding of the history of the late Ming Dynasty, he successfully persuaded the wavering Wu Sangui to lead the army to defeat the Dashun army.
But this is just the beginning. Negotiating peace with the Qing Dynasty to gain time, abolishing the "three rates" to win over the people, improving firearms to rebuild the new army, implementing land reform to touch the fundamentals... Every step is dancing on the tip of the knife. When the salute of flintlock guns tears apart the charge of the Eight Banners cavalry, when the roar of steam engines resounds through the workshops in Jiangnan, and when the sails of the ocean fleet cover the sea of Taiwan, the subjugated king who once hanged himself on a coal mountain is taking this ancient empire step by step to an unprecedented peak.
This is a history that does not exist in history books. A time traveler used knowledge and wisdom to write a new life for a dying dynasty.