In 1644, Li Zicheng led a peasant army to capture the city of Beijing, Emperor Chongzhen hanged himself on Meishan Mountain, and the Ming Dynasty collapsed. However, the vast territory in the south was still in the hands of the remaining forces of the Ming Dynasty. The Nanming regime was established one after another amidst the ups and downs, starting an arduous struggle that lasted for eighteen years.
During these turbulent years, internal and external troubles intertwined. The Nanming regime not only had to resist the Qing army's march southward, but also had to deal with internal power disputes, economic decline, and popular separation. A magnificent and tragic history unfolded.