Lin Wan, an unemployed modern-day nanny, accidentally falls down a well and travels back to ancient times, arriving at the residence of a young noble heir. Relying on her professional housekeeping skills and scientific knowledge, she establishes herself in this unfamiliar world. By combining resources from ancient and modern times, she helps impoverished farmers introduce high-yield crops and creates new livelihoods for embroiderers, winning trust and resolving misunderstandings through sincerity and intelligence. In the modern world, she works hard to repay her debts and secure a stable life for her family. In ancient times, she joins forces with the young heir to improve people's livelihoods and agricultural practices.