Qin Ge, a doctor of modern chemistry, traveled to the Qin Dynasty due to a laboratory accident and became Hu Hai's concubine brother and the marginalized son Ying Xi. When Qin Shihuang died, Zhao Gao tampered with the imperial edict to help Hu Hai succeed to the throne. Ying Xi was put under surveillance because of his closeness to Fu Su. In order to protect himself, he pretended to be crazy and acted like a fool. He secretly used modern knowledge to make soap, glass and other products, contacted the old Montessori department, recruited dead soldiers, and established a business intelligence network. When Zhao Gao's party members were fighting among themselves, he raided the palace in the name of "Qing Jun Side", killed Zhao Gao, and regained power. After taking power, he promoted light corvee and low taxes, developed science and technology industry, improved agriculture and military, and expanded into the Western Regions and overseas countries. This eventually brought the Qin Dynasty into an unprecedented prosperous age and rewrote the direction of history.
