The Romance of the Three Kingdoms is a classic ancient Chinese novel. It describes many stories with Guan Yu as the main subject. The following are some of the famous stories: 1. Going to the meeting alone: Guan Yu went to the meeting alone and fought a duel with Cao Cao. He finally defeated Cao Cao and laid the foundation for the establishment of Shu Han. 2. Pass the Five Barriers and Kill the Six Generals: Guan Yu once passed the Five Barriers and killed the Six Generals to attack the Cao army. In the end, he successfully broke through the Cao army's defense line and established an immortal meritorious service for Shu Han. 3. Loyalty is the most important: Guan Yu has always adhered to the principle of "loyalty is the most important" and established a deep friendship with Liu Bei, Zhang Fei and others. In the end, his life was threatened. 4. Battle of Maicheng: Guan Yu was trapped in Maicheng and faced the pressure of Cao Cao's army. He insisted on defending the city and finally successfully resisted the attack of Cao Cao's army, winning precious time for Shu Han. 5. Flooding the Seven Armies: Guan Yu launched the Battle of Flooding the Seven Armies and used the power of the navy to block the Cao Army's attack to the north of the Yangtze River, establishing a strong defensive force for Shu Han. These stories showed the image of Guan Yu's bravery, loyalty, and integrity, and were one of the most famous plots in the Romance of the Three Kingdoms.