Zhao Gao was a man who was hungry for power. After declaring Huhai Qin Er Shi, he decided to control the entire government. The man brought a deer to a meeting. He showed that deer in front of the emperor and the officials, and said it was a great horse. The emperor, who regarded Zhao Gao as a teacher and therefore trusted him completely, thought it was a deer, and many officials thought so too. Some were afraid of Zhao Gao, but seeing that Qin Er Shi also regarded it as a horse, said nothing. Others agreed to its being a horse. Zhao Gao murdered the officials who remained silent or called it a deer.

Zhao Gao later killed Li Si with the method of execution that Li Si invented himself. Then Zhao Gao killed Qin Er Shi and declared Ziying emperor when Liu Bang arrived at the capital. When Xiang Yu arrived, Ziying killed Zhao Gao and surrendered, thus ending the reign of the Yings as well as Zhao's rule.