Liu Guixiang, a modern billionaire farm owner, transmigrates into a vicious mother-in-law during a severe drought and famine. She binds a material exchange system. Determined to turn over a new leaf, she protects her family, fights against her natal relatives, searches for water sources and grows sweet potatoes. From a despised shrew, she rises to become a first-rank female agricultural official of the Great Xuan Dynasty, leading the whole village out of the suffering of the famine.