Han Dashan marries Tang Mai, a woman everyone in the village talks about. On their wedding day, she refuses to get out of bed or do any housework, leaving the Han family deeply embarrassed. But this seemingly laziest woman has agricultural technology letters and an account book hidden in her trunk. She directs Han Dashan to clean the pigsty, prepare feed mixtures, and experiment with growing oyster mushrooms. From the first harvest to earning recognition from the county, she leads her family in renovating their home and building a livelihood, while teaching the villagers how to improve their lives through technology. Two years later, Tang Mai proves through her wisdom and perseverance that changing one's circumstances takes more than hard work with one's hands. It also takes a clear mind, a plan for the future, and a determined heart. Along the way, she finally earns her family's understanding and love.