This story follows Chen Shoutian, an old farmer who steadfastly tends his shrimp ponds without using medication or growth stimulants. Day after day, he records water temperatures and observes aquatic plants, raising clean, high-quality shrimp through the slowest yet most dependable methods. His son, Chen Ming, returns from the city with dreams of e-commerce, initially unable to understand his father's stubborn ways. But through one challenge after another, he gradually comes to appreciate his father's craftsmanship and dedication. When torrential rain strikes, other farmers' ponds fall into chaos, while his remains as steady as ever. Even when tempted by a major buyer to switch feed, he refuses to compromise his principles. In the end, Chen Ming takes over the notebook filled with records of water temperatures and shrimp fry, inheriting his father's commitment to the land, quality, and integrity. Beneath the old pagoda tree, what is being protected is not merely a shrimp pond, but also a legacy and a hope for the future.