The Qin Concubine

A senior provincial party official dies suddenly in his office and transmigrates to the Qin dynasty, where he becomes the illegitimate son of a county magistrate in the Qin Empire's second generation. Forced to rise step by step, he builds a power base, takes on Liu Bang, drives off Xiang Yu, and kills Zhao Gao. In the end, he becomes the sage ruler revered by the people of the realm.