Modern agronomy PhD Lin Yuan transmigrates into the body of Liu Xiaoqiao, a poor peasant woman in ancient Daxia who has just lost her husband, is raising two young children alone, and must support her mother-in-law. A landslide during a trip causes the unexpected transmigration. Facing a desperate situation with an empty house and debts piling up, Lin Yuan puts solid agricultural knowledge to use, starting with basic techniques such as improving soil, making compost, and raising seedlings in greenhouses. Not only does Lin Yuan breathe new life into the family's three mu of thin farmland, but Lin Yuan also resolves family conflicts with wisdom, earns the trust of the mother-in-law and sister-in-law, and manages to establish a foothold.
As the family's circumstances improve, Xiaoqiao's focus shifts from simply surviving to becoming prosperous. She introduces high-yield crops, develops household livestock farming and the processing of agricultural products, and establishes brands such as Zhao Family Pickles, making the Zhao family the richest in Liujia Village. She then establishes the Farming Mutual Aid Association, leading the entire village in building irrigation works, promoting improved seeds, and using scientific methods to fight disasters. She turns the tide during a locust plague, earning the villagers' respectful title of Mr. Liu, while Liujia Village becomes the county's model farming village.
As her business expands from the village to the county, Xiaoqiao opens Liu's Agricultural Goods Shop and breaks with convention by taking on female apprentices. Her business acumen and agricultural ideas catch the attention of Pei Jin, a disgraced prince traveling incognito. They grow close through their shared belief that food is the people's first necessity. During a severe drought in Qingzhou Prefecture, Xiaoqiao saves countless people with a policy of providing relief through work. She also founds the Agricultural School, systematically training agricultural talent and further raising her prestige.
In the end, Xiaoqiao's achievements shake the imperial court. She travels to the capital to meet the emperor and persuades the new emperor with her down-to-earth philosophy that governing a country is like tending a field. She is appointed Grand Director of Agricultural Promotion of Daxia.
