In the Soochow Group, there was Sun Ce and Zhang Hong's "Jiangdu Pair" first, and then Lu Su and Sun Quan's "Couch Pair".

【Lu Su and Zhou Yu】

Lu Su, the word Zijing, is a native of Dongcheng, Linhuai County.

Historically, Lu Su's defection to Sun Quan and Zhou Yu had a lot to do with it, and it can be said that Zhou Yu brought Lu Su into the Soochow Group. Lu Su's family is rich in property and has a very charitable personality. Earlier, when the world was already in turmoil, Lu Su did not take care of family affairs, distributed a large amount of family money, sold the land at a high price, and took the relief of the poor to make friends with the people, which won the favor of the local people.

At that time, when Zhou Yu was the head of the nest under Yuan Shu, he heard the name of Lu Su, so he brought hundreds of people to visit Lu Su and asked for food. At that time, Lu Su's family had two warehouses of rice, each with 3,000 yuan, so he used his fingers to let Zhou Yu take it, Zhou Yu was sure that Lu Su was a different character, so he became friendly with him, and their friendship was as unbreakable as Gongsun Qiao and Ji Zha.

When the melee between the heroes was about to expand to Lu Su's hometown, in order to avoid harm, Lu Su moved his family to Dongcheng. At that time, Dongcheng was the jurisdiction of Yuan Shu. When Yuan Shu heard of Lu Su's reputation, he appointed him as the magistrate of Dongcheng County. Lu Su saw that there was no system and law under Yuan Shu's command and would not achieve great things, so he took more than 100 old and weak people and chivalrous teenagers in the clan and went south to Juchao to join Zhou Yu.

When he moved south, he put the old and weak in front and the young men who were quick and strong in his own hands behind. Yuan Shu learned that Lu Su had moved and sent people to hurry to stop him. Lu Su lined up the strong men, stretched out his bow and arrows, and said to the pursuers: "You are all men, you should understand the general trend." Why do you want to persecute me? So saying, he ordered the shield to stand on the ground, and shot it from a distance, and the arrows pierced the shield. On the one hand, the pursuers felt that Lu Su's words were reasonable, and on the other hand, they estimated that they could not help him with their own strength, so they had to retreat. Lu Su was able to reach the nest smoothly.

Soon, Zhou Yu crossed the Yangtze River east and defected to Sun Ce, and Lu Su walked with him and left his home in Qu'a. After meeting Sun Ce, Sun Ce appreciated Lu Su very much. But later, Lu Su's grandmother died, and he went back to Dongcheng to handle the funeral, so he could not stay under Sun Ce.

At that time, Liu Ziyang and Lu Su were very friendly, and he wrote to Lu Su and said: "When today's heroes are flocking up, with your qualifications and talents, it is especially suitable for today's social situation. You better hurry back and pick up the old mother, and don't stay in Dongcheng. Now Zheng Bao has more than 10,000 soldiers in Chaohu and occupies a rich area, and many people in Lujiang County have gone to rely on him, not to mention us. Looking at his trend, there will be more people, and there is no chance to be lost, you should go there quickly. Lu Su listened to his persuasion. After burying his grandmother and returning to Qu'a, Lu Su planned to go north to Chaohu. It happened that Zhou Yu had taken Lu Su's mother to Wu County, and Lu Su told Zhou Yu about his intention to defect to Zheng Bao.

At that time, Sun Ce had died, Sun Quan was still in Wu County, and Zhou Yu said to Lu Su: "In the past, Ma Yuan replied to Emperor Guangwu and said, 'In today's situation, not only the monarch can choose his subordinates, but his subordinates can also choose the monarch'. Now Lord Wu is a close believer of sages and wise men, and accepts geniuses, and I have heard that the mysterious argument of the ancient philosophers, who inherited the mandate of heaven to replace the Liu family, must start in the southeast, calculate the number of calendars and observe the situation, and eventually build the foundation of the emperor, which is in line with the mandate of heaven, and is also in the southeast. Now is the time for people with insight and lofty ideals to join the heroes. I'm realizing this truth, you don't have to take Liu Ziyang's words as the same thing. Lu Su listened to his persuasion. In this way, Lu Su was pulled into the Jiangdong Sun Quan Group by Zhou Yu.

【Couch pair】

Therefore, Zhou Yu recommended to Sun Quan that Lu Su had the talent to assist Ji Shi, thinking that this kind of person should be widely recruited in order to achieve the emperor's merits, and not let him leave, so Sun Quan had expectations for Lu Su from the beginning.

He immediately met with Lu Su and was very pleased after talking with him. After the guests retired, Lu Su also said goodbye, but Sun Quan kept him back alone, and the two drank together.

So Sun Quan and Lu Su secretly discussed, Sun Quan said directly: "Today, the Han family is like a building that is about to collapse, and the Quartet is in chaos, I inherit the foundation founded by my father and brother, and hope to build a career like Qi Huan and Jin Wen." Since you have patronized me, what are the best ways to help me succeed? ”

Lu Su replied: "In the past, Han Gaozu Geng Geng Zhong wanted to honor Emperor Yi but failed in the end, this is because Xiang Yu harmed Emperor Yi. Now Cao Cao, just like Xiang Yu in the past, how can you become the Duke of Qi Huan and the Duke of Wen of Jin? In Lu Su's private opinion, the Han court can no longer be revived, and Cao Cao cannot be eliminated at once. For the sake of the general, there is only a strong foot in Jiangdong to watch the changing situation in the world. The situation in the world is like this, and one party will naturally not attract suspicion and hatred. Why? Because the north is an eventful time. You just took advantage of this change to eliminate Huang Zu, invade Liu Biao, try your best to occupy all the places south of the Yangtze River, and then call the emperor to build the name in order to seize the world, which is a great cause to establish with Han Gaozu! ”

Sun Quan was very happy when he heard this, but he couldn't show it, so he said modestly: "I'm doing my best now, I just want to assist the Han family, what you said is beyond my reach." ”

Later, Zhang Zhao blamed Lu Su for not being modest enough and slandered him, saying that Lu Su was young and careless and could not be reused. Sun Quan did not take Zhang Zhao's words seriously, but valued Lu Su even more, and gave Lu Su's mother clothes, curtains and daily sundries, so that Lu Su's family became as rich as before.

Historically, the "couch pair" is actually the inheritance and continuation of the "Jiangdu pair". In "Jiangdu Pair", Sun Ce stated that he wanted to be an outsider, and Zhang Hong believed that Sun Ce's goal should be at least not lower than the status of Qi Huan and Jin Wen, and when it came to the "couch pair", Sun Quan said that he hoped to build a career like Qi Huan and Jin Wen, and Lu Su directly said that Sun Quan should be called Emperor Jian in the future in order to seize the world, and the goal was on par with Han Gaozu.

In "Jiangdu Pair", Zhang Hong said that Sun Ce should pacify Jingyang and Yangzhou in the later period, and then rely on the Yangtze River to sweep away the heroes, while Lu Su stated in "Couch Pair" that Sun Quan should try his best to occupy all the places south of the Yangtze River, and then try to go further. Its core idea is "first the south and then the north".

The difference is that during the period when the "Jiangdu pair" was proposed, the princes of the world were one after another, and the situation was far from clear, and when it came to the "couch pair", Cao Cao's general trend had been achieved, and there were even signs of dominating the world, so Lu Su emphasized Cao Cao's influence, and even directly said that Cao Cao was difficult to eradicate, so at this time, Lu Su had faintly pointed out the idea of "dividing the world".

Later, many people within the Soochow Group took the "two worlds" as the first choice.