Lin Dahe, a graduate student at the Modern Agricultural College, traveled to the sixth year of Chongzhen. When he woke up, he was faced with moldy brown rice and a ridiculous task issued by the system - grow food within three days, otherwise he would have to bray like a donkey for three days. In order to survive, he relied on modern knowledge to transform a drip irrigation device into a chamber pot. However, the villagers mistakenly thought he had "chamber pot disease" and rumors spread. The tax collector, Zhou Liangchang, was even more interested in his packet of drought-resistant potato seeds.
Under the guidance of the system, Lin Dahe discovered that the poisonous weeds in the eyes of the villagers were actually potatoes. He tried to prove that they were edible, but was treated as a beggar. New tasks for the system followed one after another, including improving composting technology and making mouse-catching mechanisms... While he was dealing with the tasks, he also had to face the difficulties of the Zhou grain chief. In an accident, he discovered that Zhou Liangchang was related to the theft and sale of relief grains fifteen years ago. At this time, the appearance of Aunt Ma made the situation even more confusing.
As the story progresses, Lin Dahe relies on wisdom and courage to resolve crises one after another. He used modern agricultural knowledge to improve the land, dig underground sewers, deal with current intrusions, and even cleverly resolve crises when the government and army recruited young men. His relationship with Cui Xiaoman also gradually warmed up amidst the ordeals they experienced together, but Aunt Ma's mysterious identity and the conspiracy behind her always followed her.
After completing the ultimate mission, Lin Dahe thought he could live a peaceful life, but a mysterious message suddenly popped up in the system - "The real enemy has not yet appeared." At this time, Cui Xiaoman handed him a shabby notebook, which recorded an ancient and dangerous prophecy that seemed to be closely related to the future of the village. Lin Dahe realized that this adventure across time and space was far from over...
