In the countryside of the 1990s, Zhou Ling adheres to the traditional ancient craft of ox-heart dried persimmon cakes passed down by his grandfather, leading to a divergence with his cousin Qiao Man, who pursues quick-success efficiency. He contracts the barren rocky slope mountains, practicing solid production using wicker frames for shade-drying and lime-cured frost. After enduring tests of continuous gloomy rain, he finally opens up the export market with high-quality persimmon cakes featuring thick frost and sweet fragrance, drives neighboring villagers to increase their income together, and also guides his cousin back to the righteous path, inheriting the simple qualities of craftsmanship and keeping promises.