Protagonist Li Changgeng is reborn in the third year of Jinghe in the Dayong Dynasty (fictional) during autumn in Heishigou, Taohuali, Pingyang County, Qingzhou Prefecture. At home, he has a father with a broken leg, a young sister and younger brother, a three-liang silver debt to the King of Hell, and a village bully who comes looking for trouble every day. With no system, only a chemical brain and a pair of hands willing to work the soil, he relies purely on knowledge to lead the entire village to a good life.