Time and Space Wen Yuan: Dr. Li Si Helped the First Emperor Conquer the Six Countries

Li Si, a doctor of science in City A of Blue Star, encountered plagiarism in his thesis and a fatal car accident, and was bound to the "Wenyuan System" when he was dying of consciousness. The system informed that his soul would travel to Li Si's body at the end of the Warring States Period, and his ultimate mission was to help Ying Zheng unify the six countries before he could return to the original world.