Liu Bei has been deceived by Lu Bu since he seized Xuzhou. He came to take refuge with Cao Cao.

Cao Cao appreciated Liu Bei more.

Cao Cao was allied with Liu Bei in the year he captured Lü Bu. At that time, after Liu Bei was defeated by Lu Bu, Liu Bei went to seek refuge with Cao Cao. At this time, Cao Cao immediately appointed Liu Bei as the pastor of Yuzhou.

Since then, Liu Bei has lived with Cao Cao. Liu Bei's food, clothing, housing and transportation were all taken care of by Cao Cao.

After that, Liu Bei and Cao Cao defeated Lü Bu. When returning to Xuzhou. The people begged to keep Liu Bei as a guard. Cao Cao used Liu Bei to see the emperor as an excuse. took Liu Bei and his party back to Xuchang.

After arriving in Xuchang, Cao Cao immediately rewarded the meritorious personnel who followed the expedition. He also led Liu Bei to see Emperor Xian of the Han Dynasty.

Because Liu Bei is a generation older than Emperor Xian of the Han Dynasty. He is the uncle of Emperor Xian. Therefore, people also call Liu Bei Uncle Liu Huang.

Later, it was recommended by Cao Cao. Liu Bei was also named General Zuo. It should be seen that Cao Cao also valued Liu Bei at that time.

Because of this, when Cao Cao returned to his prime minister's mansion. Xun Yu stepped forward to persuade Cao Cao. Speaking of Cao Cao, the emperor recognized Liu Bei as the emperor's uncle. Not good for Cao Cao. Cao Cao disagreed.

And Cao Cao's courtesy to Liu Bei is also very high.

At this time, Liu Bei was also always on guard against Cao Cao's murder. In the days when Cao Cao put Liu Bei under house arrest. Liu Bei in order not to attract Cao Cao's attention. He planted a lot of vegetables in the garden and watered them himself. Guan Yu and Zhang Fei felt very strange. Asked about Liu Bei, Liu Bei disagreed.

One day, Liu Bei was watering vegetables in the backyard. Xu Zhu and Zhang Liao led dozens of people to break into the garden. said to Liu Bei: "Prime Minister Cao Cheng has something to do with you." Liu Bei had no choice but to go with them to meet Cao Cao with apprehension.

Cao Cao saw Liu Bei. smiled and said to Liu Bei: "Xuande, you have done a great thing at home. Liu Bei's face was so frightened that his face was like earth. Cao Cao held Liu Bei's hand at this time and walked all the way to the back garden. said: "Xuande, it's not easy to learn to grow vegetables!" Liu Bei relieved himself and replied, "It's just that I have nothing to do." ”

Then Cao Cao said with a smile: "I see that the plums on the branches are hot, and the wine is ripe, so I invite you to come to the small pavilion for a gathering." Liu Bei breathed a sigh of relief, and his hanging heart quietly fell. So, the two came to the small pavilion, sat opposite each other, and drank heartily.

The wine is half-drunk, and the sky is fused. Heavy rain is coming. Cao Cao couldn't help but say to Liu Bei: "The world is unpredictable. But who is a real hero? You might as well talk about it. Liu Bei pretended not to understand at first. Yuan Shao, Liu Biao, Sun Ce and others are listed. Cao Cao denied them one by one. And said: "The heroes of the world are only you and me." ”

When Liu Bei heard this, he was so shocked that the chopsticks in his hand fell to the ground, and he muttered in his mouth: "A thunder scared me so much that I couldn't even hold the chopsticks." Cao Cao saw that Liu Bei was so timid, so he no longer doubted him.

The next day, Cao Cao invited Liu Bei to drink together, and someone came to report during the banquet: "Yuan Shao killed Gongsun Zhan, and Yuan Shu wants to send him the jade seal of the country." ”

At this time, Liu Bei took a fancy to the opportunity. I thought to myself that this was a great opportunity to escape.

So, in the name of intercepting Yuan Shu, Liu Bei asked for 50,000 soldiers from Cao Cao and fled from Xudu. Cao Cao sent Zhu Ling and Lu Zhao to accompany Liu Bei.

After Liu Bei defeated Yuan, Yuan Shu vomited blood and died, and the jade seal of the country was sent to Cao Cao. Liu Bei finally returned to Xuzhou, let Zhu Ling and Lu Zhao return to Xudu, and left soldiers and horses to be stationed in Xuzhou. Cao Cao was furious when he heard the news, so Cao Cao secretly ordered the Xuzhou guard to kill Liu Bei. Che Xuan asked Chen Deng to discuss a plan to assassinate Liu Bei, but Chen Deng told Liu Bei about it. That night, Guan Yu pretended to be Cao Cao's subordinates and went to the city to call the door. The chariot did not know whether the person was true or not, so he put on his horse and led a thousand troops out of the city to meet him. In the firelight, he saw Guan Yu carrying a knife to greet him.

As soon as he arrived at the edge of the suspension bridge, he saw Chen Deng's arrows shooting down in the city, and the chariot was cornered. I had to flee around the city. Guan Yu quickly chased after him, raised his knife and cut off the head of the car.

So, Guan Yu carried the head of the car and said sharply to the soldiers in the city: "The anti-thief car has been killed by me, you are not at fault, surrender now, you can avoid death." When the generals heard this, they turned against each other, and in this way, Xuzhou returned to Liu Bei's hands.

Moreover, Liu Bei also openly rebelled against Cao Cao, and he wanted to fight to the end.

In fact, Cao Cao had already decided to treat Liu Bei with sincerity. Even Liu Bei took the initiative to ask Ying to go to Xiapi to intercept Yuan Shu, and when Dong Zhao inquired and rushed to dissuade him, Cao Cao also said: "I have promised him, it's not good to regret it." Until Cheng Yu and Guo Jia pointed out that borrowing troops showed that Liu Bei had different intentions.

At this time, Cao Cao suddenly realized, but he had no time to regret it.

Letting Liu Bei go may be the biggest mistake Cao Cao made in his life.