楽進
Between 197 and 198, Yue Jin followed Cao Cao to subdue Zhang Xiu, who feigned surrender and defeated Cao Cao at the Battle of Wancheng. Much hardships were experienced during the campaign, but Yue Jin, along Yu Jin, was recorded to have earned merit during the battles. Due to the fact that Zhang Xiu was backed by Liu Biao, the Governor of Jing Province, Cao Cao realised that Zhang Xiu could not be defeated within a short period of time. Under the rationale that Liu Bei was asking for help in Xiaopei (小沛; present-day Pei County, Jiangsu) to fight Lü Bu, Cao Cao finally relinquished his war against Zhang Xiu, and sent envoys to ask Zhang Xiu to form an alliance, which Zhang Xiu agreed upon the term that a marriage be arranged between the two families. During the siege of Xiapi, Yue Jin led a separate command and defeated one of Lü Bu's deputies outside the city before he joined the encirclement.