Li Mo, a social worker, stayed up late to catch up on a project, and when he opened his eyes, he traveled back to the Qin Dynasty, and unexpectedly discovered that the first emperor of the dynasty, Ying Zheng, was his uncle! In line with the principle of "holding your thighs to prevent them from being ruined, and having a vicious tongue to protect your life", Li Mo encouraged Ying Zheng to build the Great Qin Academy, which was euphemistically called "cultivating the pillars of the Great Qin". In fact, he recruited all the scholars from the Warring States Period and the Chu and Han Dynasties to be "tool men". He is evil and vindictive, has a vicious tongue, and loves to show off. He can do anything to others without doing it himself. He secretly disses Ying Zheng for being "stingy and suspicious" and has been caught on the spot several times. In order to prevent Fusu from repeating the mistakes of history, he forced the eldest son to train his muscles every day, and forcibly turned Wen Run into a macho man who could crush Xiang Yu. He also brought Fusu up to be as vicious and arrogant as him, and he dared to complain about Ying Zheng even more than he did. Famous scenes were staged every day in the academy: Confucius and Laozi quarreled over "should I leave homework?" Mozi was obsessed with making a "Qin version of the machine gun", Han Xin was fooled into practicing "modern formation" by him, Xiang Yu came to play and was pushed to the ground by Fu Su, and Li Mo stood up and watched the whole process, occasionally adding a venomous comment. Relying on modern knowledge, Li Mo invented cement, a curved shaft plow, and a simple telescope, taught students mathematics, physics, and modern military training, and helped Ying Zheng sweep the six countries and dominate the world. After the six countries were reunited, he took out a world map and photographed it in front of Ying Zheng: "Uncle, how about we unify the world again?