Lin Weiwei, a social beast, transforms into the evil woman in ancient sadistic novels and is bound to the "yield per acre system". When the heroine of the original book was busy fighting in the palace, she brought the hybrid rice seeds and composting technology rewarded by the system to start modern agriculture in the fiefdom: improving the curved shaft plow, promoting the retting method, and establishing a grain reserve, turning the desolate fiefdom into a land of abundance.