In 223 AD, Liu Bei was seriously ill. On his deathbed, there was a disappointing Adou, which made him uneasy. So he called Zhuge Liang and Li Yan, entrusted Liu Chan to Zhuge Liang and asked Li Yan to help Zhuge Liang. So he said he was an orphan. In fact, he was afraid that Zhuge Liang's family would make contributions, and Li Yan was in charge of supervision.
Originally, the two ministers competed with each other, restricted each other, lived in peace, and assisted the monarch. Later, Li Yan was exiled to Shu Ren because of the following things. The first thing happened in lite four years, Liu Chan just ascended the throne, and Zhuge Liang was preparing for the Northern Expedition. Starting from the overall situation, I decided to transfer Li Yan to Hanzhong. As a secretariat of Jiangzhou, Li Yan refused this transfer and wanted to be a secretariat of Bazhou (there was no such official at that time, and he proposed that Zhuge Liang merge the five counties into Bazhou).
The second thing happened four years later, when Ye Zhen was Cao Cao's soldier and attacked on a large scale. Zhuge Liang sent Li Yan to Hanchuan. He refused again on the grounds that he could not leave Jiangzhou to be the secretariat of Jiangzhou, and he could not keep it without Jiangzhou. Zhuge Liang forced Li Yan's son to be a general and finally went to Hanchuan.
The third thing happened a year after the second thing happened. Zhuge Liang has started the Northern Expedition, and Li Yan is responsible for the transportation of grain and grass in the logistics department. Chuanchuan grew up in the mountains, the road was long, and the ancient traffic was not very convenient, so he worked hard and spent a lot of time. Li Yan was afraid that he could not transport the grain and grass to the post-war party in time, so he lied and wrote Zhuge Liang to withdraw. At the same time, he said in front of Liu Chan that he didn't know the reason for Zhuge Liang's retreat. After Zhuge Liang confronted Liu Chan face to face, he was disqualified as Shu Ren.