Modern food researcher Shen Heniang unexpectedly transmigrates into the body of a widowed rural woman burdened with enormous debts. With clan relatives trying to seize her farmland and creditors threatening to take everything, she relies on a broken vat and her expertise in identifying microorganisms and making fermented sauces to turn her fortunes around. Not only does she manage to feed her entire family, but she also unites the village widows to earn a living together. Amid layers of conspiracies, she protects the Qing Shan Sauce brand, leads her relatives to success, and becomes a legendary figure.