It tells the story of Wang Heng, a doctor of materials science, who accidentally traveled to the Zhenguan period and achieved class leapfrog in the Tang Dynasty by relying on the modern knowledge system. Wang Heng knew very well that as a doctor of materials science from the future, only by precipitating knowledge that spanned thousands of years into "ingenuity" and "craftsmanship" that conformed to the logic of the times, and carefully embedding it into the fabric of Tang society, could he earn a foothold for himself in this glorious and unfamiliar era, and even quietly make a small ripple. The road to survival begins with a bowl of rough porridge and turbid salt water. Every step requires walking on thin ice, but it is also full of possibilities to leverage the times with wisdom.
