Lin Mo, a top doctor of materials science, accidentally traveled to the 25th year of Kaiyuan of the Tang Dynasty and possessed Li Mo, a down-and-out small businessman in Chang'an West City whose family was ruined and heavily in debt. When you open your eyes, a bully is at your doorstep, and your life hangs by a thread!
There is no system, no superpowers, only scientific knowledge that spans thousands of years and vague memories of the direction of history. How can he, who is penniless, survive in the shadow of the prosperous age?
