China's social changes from 1970 to 1999 covered major historical nodes such as people going to the mountains and rural areas, third-line construction, the resumption of college entrance examinations, and reform and opening up. It focuses on describing the rural and county ecology of the plains in southwestern Shandong and showing the life of all living beings in the transition period from planned economy to market economy. The story of Zhou Weidong, who was unexpectedly reborn and used knowledge to change his destiny, begins...