To save five cents per jin in handling fees, the egg farmers of Luhua Village abandon Zhao Yue'e, who has been collecting eggs on their behalf for twelve years, and decide to deal directly with buyer Su Hongying. Without Zhao Yue'e coordinating and sorting the eggs, confusion breaks out, villagers fight over loading their goods onto trucks, and damaged eggs become increasingly common, leading to one loss after another. Heartbroken, Zhao Yue'e leaves and settles in Changhe Village with the help of Mr. Song. She establishes clear rules for egg collection and earns the trust of Changhe's villagers through reliable quality. Later, she returns to her hometown, leads the formation of a cooperative, exposes fraudulent egg merchants, builds the 'Eggs by the Rules' brand, and helps multiple villages achieve prosperity together.