Zhang Yun, a graduate student in the Department of History, accidentally traveled through the final years of Kangxi and became Aixinjueluo Yunshu, Kangxi's nephew and the fifth son of Prince Gong Chang Ning. At that time, the battle for the throne was intensifying. With three hundred years of knowledge of Qing history, he stayed dormant and endured to help Yinzhen ascend the throne. He became the leading military minister of the Yongzheng Dynasty and took charge of the government. By the time of the Qianlong Dynasty, he had overwhelming power, comparable to Dorgon, but he was unwilling to repeat his mistakes. In the turbulent Qing Dynasty, he blazed his own path as a powerful minister.
