The main force of the peasant uprising at the end of Yuan Dynasty was the Red Scarf Army who believed in White Lotus. However, there are also insurgents who neither believe in the White Lotus Sect nor play the banner of the Red Scarf Army, among which Zhang Shicheng and Fang Guozhen are the representatives.

Fang Guozhen, a native of Huangyan, Zhejiang (now Huangyan, Zhejiang), was originally engaged in salt sales. Before the peasant uprising broke out at the end of Yuan Dynasty, there was an anti-Yuan uprising in Huangyan. The Yuan army suppressed the rebel army, and many local people were killed innocently because of being accused of chaos. Fang Guozhen has an enemy who colluded with the government and falsely accused Fang Guozhen of being an accomplice of the disorderly party. When the Yuan army came to arrest him, Fang Guozhen killed his enemy in a rage and fought Yuan with his younger brother. They assembled thousands of troops, robbed ships and killed officials of the Yuan Dynasty. The Yuan Dynasty suppressed several times and was defeated by Fang Guozhen. Later, Yuan bought it with promotion and knighthood, and reached a compromise with Yuan. At the same time, he also pays attention to developing his own strength. Fang Guozhen is a two-faced figure who is connected with both the Red Scarf Army and the Yuan Dynasty.