Tu'an Gu, the general of the state of Jin, framed Zhao Dun, a loyal minister. At his instigation, the monarch of the state of Jin ordered Zhao to be beheaded. Overnight, more than 3 people in Zhao Dun's family were slaughtered. Princess Zhuangji, the wife of Zhao Dun's son Zhao Shuo, was the sister of the monarch, but she survived and was sent back to the inner palace to live. At this time, she was pregnant. A few months later, Princess Zhuangji gave birth to a baby boy named Zhao Wu.
Tu'an Gu ordered the imperial palace to be blocked. In the name of seeing a doctor, Princess Zhuangji called Cheng Ying, a close friend of Zhao's family, into the inner palace and asked Cheng Ying to save Zhao Wu from the palace. Cheng Ying put Zhao Wu in the medicine cabinet and prepared to take him out of the palace gate. Shoujiang Han Jue was so impressed by Cheng Ying's justice that he let Cheng Ying and Zhao Wu go, and drew his sword and committed suicide. In order to get rid of the weeds, Tu'an Gu announced that all babies under the age of six months in the country would be killed.
In order to save all the innocent babies in Zhao Wu and Jin, Cheng Ying negotiated with Gongsun Chujiu: Cheng Ying gave his own son instead of Zhao's orphan, and the old man Gongsun took the charge of saving the orphans, and then Cheng Ying personally reported it to Tu'an Gu. Tu'an Gu listened to Cheng Ying's report and killed the old man Gong Sun and the "orphan of Scott". Since then, Cheng Ying has been charged with betraying his friends and seeking glory, trained Zhao Wu into a man with both civil and military skills, and made Zhao Wu recognize Tu'an Gu as his adoptive father. When Cheng Ying told Zhao Wu the truth, Zhao Wu killed Tu'an Gu with the help of Wei Jiang, the general who returned from guarding the border. Since then, Zhao Wu has presided over the state administration of the State of Jin, making the State of Jin basically maintain its hegemonic position.