The story of Han Zhao Wei's "three families dividing the Jin" believes that many people have heard, originally the Zhi clan of the Jin Dynasty wanted to annex the land and population of the Han, Zhao and Wei tribes, and as a result, stealing chickens did not become erosion of rice, and was destroyed by the combination of these three families. After the Zhi clan was destroyed, the Han, Zhao, and Wei families divided up their lands. Because Zhao Xiangzi hated Zhi Boyao the most, after killing Zhi Boyao, Zhao Xiangzi also made his skull into a wine vessel. At this time, Yu Rang, who had been appreciated by Zhi Boyao, fled to the mountains, and he said sadly: "A soldier dies for a confidant, and a woman is a person who pleases herself." I must avenge Zhi Boyao!"

In order to achieve this goal, Yu Rang hid his name and later disguised himself as a tortured person to go to the Zhao King's Palace to wash the toilets, so that one day he could find the opportunity to assassinate Zhao Xiangzi. One day, when Zhao Xiangzi went to the toilet, he suddenly felt that his heart was beating faster, so he ordered someone to bring the person in charge of cleaning the toilet to be interrogated. After some interrogation, Zhao Xiangzi learned that Yu Rang was assassinated in makeup. At this moment, Yu Rang suddenly took out a dagger and rushed towards Zhao Xiangzi, shouting, "I want to avenge Zhi Bo!" Zhao Xiangzi's guards hurriedly took Yu Rang and planned to execute him.
Zhao Xiangzi waved his hand and said, "This is a righteous soldier, I just need to avoid him, there is no need to execute him." Zhi Bo left no descendants, and his courtiers who were willing to avenge him must be the wise men of the world. So he ordered someone to release Yu Rang. Zhao Xiangzi's tolerance did not exchange Yu Rang's gratitude, and he still decided to avenge Zhi Bo. This time he painted himself all over and made himself into a leper. At the same time, he stripped his eyebrows and hair, completely disfigured, and pretended to be a beggar begging. Even his wife didn't recognize him when she saw him, but thought he sounded a bit like it. In order to be foolproof, Yu Rang swallowed charcoal to make his voice dumb.
Yu Rang's friend said, "It is very difficult for you to succeed in this method, and with your talents, wouldn't it be easy to pretend to serve Zhao Xiangzi and then find an opportunity to assassinate him?" Yu Rang said, "You mean to beat up new friends for the sake of old friends, and to kill new monarchs for the sake of old monarchs. I am doing this today only to illustrate the righteousness of the monarch, and it does not matter whether the revenge is successful or not. How can we call a loyal servant if we gain the trust of others and then assassinate them?"
Later, Zhao Xiangzi went out on a tour, and Yu Rang hid on the road that must be passed to prepare for the assassination, but he was unexpectedly discovered. Zhao Xiangzi asked curiously, "You also served the Fan clan and the Zhongxing clan before, and Zhibo destroyed the Fan clan and the Zhongxing clan, and you did not avenge them, but instead humiliated the courtier Zhibo." Now that Zhi Bo has been dead for a long time, why do you have to avenge him?" Yu Rang said: "The Fan clan and the Zhongxing clan treat me with the etiquette of ordinary people, and I will repay them with the attitude of ordinary people." Zhi Bo treated me with the courtesy of a national soldier, and I repaid them with the attitude of a national soldier. ”
Zhao Xiangzi said, "If you avenge Zhibo, you have become a loyal and righteous soldier, and I have already exhausted your benevolence and righteousness before." You can't be let go anymore today. Yu Rang said, "I understand you, and you have become famous for letting me go before." But can you give me the robe and let me stab a few swords? So even if I die, I have no regrets. After Zhao Xiangzi listened, he immediately took off his royal robe to Yu Rang. Yu Rang stabbed a few swords after taking the royal robe and cried, "Oh my God, I have finally avenged Zhi Bo." He then committed suicide.