Travel Back to the Qin Dynasty and Become Emperor

"Liu Yunsheng", who has just graduated from college and is about to enter the society, imagines that in the future he will be admitted to a company on merit, get a promotion and a salary increase, marry Bai Fumei, and reach the pinnacle of life. However, reality has been beaten to pieces by real life. Once he was drunk and accidentally fell into the river. But his soul traveled to Qin Wangzheng in 221 BC...