Liu Bei, one of the most legendary warlords of the Three Kingdoms period, rose to prominence from a vendor setting up a stall and eventually rose to become a hegemon, and Zhuge Liang contributed to this. However, Liu Bei didn't know that in addition to Zhuge Liang, there was also an outstanding talent who was good at strategy - Boling Cui Jun, who missed the opportunity to meet him for various reasons.
Liu Bei met Cui Jun during his journey to find Zhuge Liang in Wolong. After some conversation, Liu Bei discovered Cui Jun's extraordinary intelligence and felt like he relied on it. tried to invite Cui Jun to join his command, but Cui Jun politely declined Liu Bei's invitation with the attitude of "idle clouds and wild cranes". Liu Bei couldn't force it, so he could only leave silently, and he insisted on waiting for Zhuge Liang's arrival. However, Liu Bei never realized that missing Cui Jun was also the biggest regret in his life, because Cui Jun was an outstanding person who was not inferior to Zhuge Liang.
Cui Jun was originally a strategist of Yuan Shao's group, but as the conflict between Yuan Shao and Dong Zhuo intensified, Cui Jun became Dong Zhuo's enemy. In order to vent his personal anger, Dong Zhuo brutally killed Cui Jun's mother. After learning the news, Cui Jun was grief-stricken and blamed himself, so he chose to live in seclusion in the mountains and forests and never ask about the world again. His departure made Yuan Shao reluctant, because he knew that Cui Jun was a master with outstanding skills, and it was with his assistance that Yuan Shao was able to confront Dong Zhuo head-on. However, at that time, Liu Bei was concerned about Zhuge Liang and almost didn't care about Cui Jun. If Liu Bei can treat Cui Jun like Zhuge Liang, maybe he will re-enter the rivers and lakes, and the future history of the Three Kingdoms may usher in earth-shaking changes.