According to legend, at the end of the Eastern Han Dynasty, Yang Biao's son Yang Xiu was an agile writer. Later, he became the counselor of Cao Cao, the prime minister of the Eastern Han Dynasty, lived in the master book and took documents and handled affairs for Cao Cao's Hall. Once, Cao Cao built a back garden. After the completion, Cao Cao went to watch and walked around the garden. When he left, he said nothing but wrote a word "live" on the garden door. The craftsmen didn't know what this meant, so they asked Yang Xiu. Yang Xiu said to the craftsmen, add movable type where the door is wide. The Prime Minister thinks that you have made the garden door too wide. The craftsmen suddenly realized and rebuilt the garden gate. Please ask Cao Cao for acceptance after completion. Cao Cao was overjoyed and asked, "Who knows me?" The left and right answers: "Thank you, Master Yang, for your advice!" Although on the surface, Cao Cao is good, but his heart is taboo.

One day, someone in Saibei sent Cao Cao a box of delicate crispy cheese to please him. Cao Cao took a bite and suddenly had a brainwave. He wanted to test the intelligence of the civil servants and military commanders around him, so he wrote the word "one crisp" vertically on the crisp box and asked the special envoy to give it to the minister of civil and military affairs. The ministers were puzzled by this box of cakes and asked Yang Xiu for advice. When Yang Xiu saw the words on the box, he picked up the tableware and shared it with everyone. Everyone asked him, "How dare we eat Wang Wei's food?" Yang Xiu said: "It was Wang Wei who made us all crisp!" All the civil servants and military commanders present were surprised by Yang Xiu's intelligence. Later, when Cao Cao asked why, Xiu calmly replied: "The box clearly says' one person is crisp'. How dare you disobey the orders of the Prime Minister? " Although Cao Cao likes to laugh, his heart is jealous of Yang Xiu.

Cao Cao is suspicious, afraid of being countered by others. He often tells his left and right, "I like killing people in my dreams. Whenever I fall asleep, don't go near! " One day, Cao Cao was sleeping in his tent and fell to the ground on purpose. A waiter panicked and covered it for him. Cao Cao immediately jumped up and drew his sword to kill him, and went to bed again. After sleeping for a long time, I pretended to dream and asked, "Who killed my valet?" Everyone told the truth. Cao Cao wept bitterly and ordered him to be buried next to the waiter. People thought that Cao Cao really killed someone in his dream, but Yang Xiu saw through his intention. When he was buried, he pointed to the body of his valet and lamented, "The Prime Minister is not in a dream, but you are in a dream!" " When Cao Cao heard this, he hated Yang Xiu even more.

Cao Cao sent troops to attack Liu Bei in Hanzhong, and was trapped at the border of the oblique valley. He wanted to join the army, but Ma Chao refused to stay. He wanted to withdraw his troops and return to Korea, but he was afraid of being laughed at by the Shu soldiers. He hesitated and met the chef with chicken soup. Cao Cao felt pregnant when he saw chicken ribs in the bowl. Just thinking about it, Xiahou (Xiangxiang) entered the account and asked for a slogan at night. Cao Cao casually replied, "Chicken ribs! Chicken ribs! " Order all officials to call it "chicken ribs!" Yang Xiu, the marching master, saw the word "chicken ribs" and taught the accompanying sergeant to pack up and prepare for the return trip. It was reported that Xiahou had rebelled. Surprised, he invited Yang Xiu to his account and asked, "Why are you packing?" Xiu said, "Give the order tonight, and we can see that Wang Wei will withdraw his troops in a few days. Those who have chicken ribs will eat without meat and abandon them. If you can't win today, it's no use returning it, for fear of being laughed at. Why don't you come home early? Wang Wei will be transferred tomorrow. So pack your bags first, so as not to panic when you leave. " Xiahou (Xiang Xiang) said, "You really know Wang Wei's heart!" So I packed my bags. So all the generals in the village are ready to return to the plan. When Cao Cao learned of this situation, he called Yang Xiu to ask him and made a gesture of "chicken ribs". Cao Cao was furious and said, "How dare you spread rumors and disturb our army!" Those who drink knives and axes, push them and cut them, so that their heads are outside the iron gate.