The soul of the social animal Lu Renjia traveled through the Qin Dynasty and fell into the bath of Qin Shihuang. In order to save his life, he was forced to engage in hard-core survival: using a lighter to pretend to be "divine fire", relying on Kung Pao chicken to conquer the stomach of the First Emperor, and using modern knowledge to start a revolution in the infrastructure of the Qin Dynasty. From a prisoner in the Department of Rare Objects to a popular figure in the General's Shaofu, he made the emperor and his ministers call him "really fragrant", but he didn't know that the seeds he had sown were quietly changing the future of the empire...