After a bizarre car accident, the protagonist Lin Fan traveled to the Qin Dynasty, with only a running AI smartphone left on his body. He originally thought that he would be reduced to an ancient coolie, but he did not expect that with the help of his AI assistant "Xiao Zhi", he could predict the enemy on the battlefield, popularize technology in the military camp, and outsmart the powerful officials in the court, and gradually became the most important existence in the Qin Dynasty. From steam boilers to psychological counseling, from military reform to ideological brainwashing, he turned the knowledge of future generations into "miracles of destiny." Funny with passion, absurd with edge, this is a refreshing story about modern people using AI to "walk sideways" in the Qin Dynasty - have you ever seen the first emperor downloading an app?