Lin Zhao, a modern mechanical engineer, traveled back in time to the 23rd year of Kaiyuan (735) of Emperor Xuanzong of the Tang Dynasty due to a laboratory explosion, and became a descendant of a poor nobleman on the outskirts of Chang'an. With the help of modern knowledge, he first solved his own survival crisis, and then gradually contacted the core circle of the Tang Dynasty, laying the groundwork for "rebuilding the prosperous Tang Dynasty".
