Modern girl Song Jinzhao's soul crosses into an ancient farming family, becoming a fourteen-year-old eldest daughter whose parents have both passed away. Her uncles want to adopt her young younger brother and sell her younger sister, so she takes a vow in public to raise her three younger siblings all by herself. Relying on hunting, gathering mushrooms, catching fish, making ice, and setting up a stall, she makes her fortune all the way, going from four hundred and sixty wen to buying a shop and building a house, sending her younger brother to a private school and teaching her younger sister to study medicine. She also accidentally stumbles upon the conspiracy of the northern spies of Shuo, presents a good strategy for a waterwheel that reaches the emperor's ears, receives an imperial plaque, and becomes the first woman in Songjia Village to break the rule and enter the inner ancestral hall.