The former Jin general Yao Xiang, who, after rebelling against Jin in 354, had intended to establish his independent state, attacks Former Qin's northern territory in 357; the Former Qin generals Deng Qiang and Fu Huangmei, the Prince of Guangping, fight back and capture and execute him.

Fu Sheng, still respectful of Yao Xiang and his father Yao Yizhong, whose casket Yao had carried with his army, buries both with honors.

However, not only does he not reward Fu Huangmei but further insults him, leading Fu Huangmei to plot an unsuccessful assassination against him, resulting in Fu Huangmei's death.

Yu Zun is executed in 357 along with his sons and grandsons after Fu Sheng dreams of a large fish in Chinese) eating calamus palm.

Later in 357, Fu Sheng becomes suspicious of his cousins Fu Jiān, the Prince of Donghai, and Fu Fa, the Prince of Qinghe, and considers killing them.

His ladies in waiting leak the news to Fu Jiān, who immediately leads his private army to attack the palace.

The imperial guards, who already resent Fu Sheng's ferocity, surrender without resisting.

Fu Jiān captures Fu Sheng, who is still in a drunken stupor, and has him deposed and then executed.

Fu Jiān now takes the throne.