In the later period, the status of Shu Han plummeted and became the weakest country among the three countries. With the death of Guan Yu, Zhang Fei and other generals and the death of Liu Bei, the emperor of Shu Han, Shu Han fell into a critical autumn at this time.

Zhuge Liang failed to save this situation and organized the northern expeditions of the Shu army many times, but all ended in failure. After Zhuge Liang's death, many heirs volunteered to resist the enemy, trying to take over Zhuge Liang's mantle and continue to lead Shu to complete the great cause of the Northern Expedition, among which Jiang Wei was the one who finally carried the banner.

After the assassination of Fei Yi, Jiang Wei began to be the leader of Shu Han. His basic proposition was the policy decided by Zhuge Liang before his death, that is, to continue the Northern Expedition. Others didn't dare to have any opinions before Zhuge Liang died, but at this time they had great dissatisfaction with Jiang Wei, an unqualified person. They thought that the Northern Expedition was very inappropriate for Shu at this time, and Zhuge Zhan, Zhuge Liang's son, was the most opposed.

After Zhuge Liang's death, Zhuge Zhan inherited his father's title. At that time, many people regarded Zhuge Zhan as Zhuge Liang's successor. In fact, Zhuge Zhan had no political talent. At this time, Jiang Wei took over Zhuge Liang's work, and Zhuge Zhan was very dissatisfied. Once, after the failure of Jiang Wei's Northern Expedition, Zhuge Zhan persuaded Jiang Wei to put his troops back and make every effort to develop the domestic economy, otherwise it would bring down Shu.

Liu Chan agrees with Zhuge Zhan. He took Jiang Wei's relieving back, agreed to Jiang Wei's request and went back to his hometown to farm. However, in the second year, Deng, the general of Wei, attacked Shu's level tone, and Zhuge Zhan led the troops to fight back. However, due to strategic mistakes, he failed again.

After Zhuge Zhan led the troops to retreat to Mianzhu, General Wei wrote to surrender to Zhuge Zhan. Zhuge Zhan was furious and beheaded the messenger. Under the persuasion of his subordinates, Zhuge Zhan cried and said that there was no room for Huang Hao at home, and Jiang Wei could not be controlled externally. He was ashamed to go back and finally fought to the death in Mianzhu.

Thus, Zhuge Zhan had a problem with Jiang Wei before his death, thinking that Jiang Wei's Northern Expedition brought down the national strength of Shu and led to his own failure today.