After a few Dongchuan victories that allowed Dong to penetrate all the way to Mimou Base (彌牟, in modern Chengdu), near Chengdu itself.

After three years, he was transferred to Xichuan Circuit (西川, headquartered in modern Chengdu, Sichuan) to serve as its military governor.

A sorcerer from Qingcheng (青城, in modern Chengdu) thus falsely claimed that he was Chen; he arrived at government offices and began making orders.

After he passed the imperial examinations, he was made the magistrate of Qingcheng County (青城, in modern Chengdu, Sichuan).

Yuchi quickly advanced to Xiao Ji's capital at Chengdu (成都, in modern Chengdu, Sichuan).

Wang Jian made Li Jikan the prefect of Peng Prefecture (彭州, in modern Chengdu).

Emperor Xizong fled toward Xichuan Circuit (西川, headquartered in modern Chengdu, Sichuan).

Zheng was forced to resign and retire to Peng Prefecture (彭州, in modern Chengdu).

He journeyed to Jiannan Circuit (劍南, headquartered in modern Chengdu) and became a soldier in the army there.

However, Wei Gao the military governor of Xichuan Circuit (西川, headquartered in modern Chengdu, Sichuan) heard about him and invited him to serve on staff.