Tao Nian, a modern agricultural sciences PhD, unexpectedly transmigrates into ancient times. The moment she wakes up, she finds herself tied up by her cruel mother-in-law, Zhao Feng, who plans to sell her to an old man in exchange for three dou of grain. Trapped in a desperate situation, she uses soybean sprouts to bargain for her survival and unexpectedly activates the Shennong System, gaining access to fast-growing seeds and ripening potions. With a divorce letter, she cuts ties with her husband's family and sets out to reclaim uninhabited wasteland, establishing herself through growing vegetables and crops. She continuously improves the soil, builds greenhouses for out-of-season cultivation, grows medicinal herbs, and overcomes devastating pest infestations. Leading the widows in her village to reclaim wasteland and become prosperous, she eventually earns the emperor's title of Marquis of An Nong through her extraordinary agricultural skills, guiding the impoverished widows' village toward a glorious golden age.