Guo Kai was a favorite of Zhao during the Warring States Period. In 229 BC, Wang Jian, a general of the State of Qin, led an army to attack Zhao, and Zhao Wang sent Li Mu and Sima Shang to attack. Li Mu was a famous soldier of Zhao after Lian Po at that time. In a few years, he led his troops to attack the Yan army in the north and rejected the Han and Wei dynasties in the south, and suffered repeated defeats.

Guo Kai

Qin Jun and Wang Jian are as terrible as tigers. Seeing that Li Mu led the troops to battle, Qin felt hopeless about the storm, so he bribed heavily to try to persuade Zhao to recall Li Mu. After taking bribes, greedy Guo Kai framed Li Mu, Sima Shang and others for rebellion. Zhao ignored the facts and made a blind decision. He sent Zhao Cong and Yanju instead of Li Mu and Sima Shang to kill Li Mu. After Li Mu was killed, Wang Jian took the opportunity to defeat Zhao and captured Zhao alive, thus annexing Zhao.