Of the three kingdoms in history, Sun Quan is the most embarrassing person. He changed his face many times. When he gained an advantage in hand-to-hand combat with Cao Wei, he suddenly became a vassal like Cao Wei. When Zhuge Liang tried to promote "East and Sun Quan", Sun Quan sent troops to Jingzhou and killed Guan Yu ... When Sun Quan greeted Lu Su, he dismounted and stood up to greet him. Everyone was surprised. Sun Quan asked Lu Su, "Can this show your status?" Lu Su said that when the Ninth Five-Year Plan comes, it will show my position, so Sun Quan "clapped his hands and laughed". It is shameful to repeat this, but it is Sun Quan's gesture that made him firmly stick to the Yangtze River, parted ways with Cao and Liu, and finally proclaimed himself emperor.