Yan Xun, a fishery quality inspector, insists on inspecting every fish eight times and strictly controlling the quality of the catch. However, his greedy and short-sighted boss, Zhao Jinya, misunderstands him and fires him. Yan Ruyu, a fishery owner struggling to get her business off the ground, recognizes his talent and invites him to join her fishery. With his exceptional skills, Yan Xun restores the fishery's reputation and thoroughly humiliates Zhao Jinya when he comes looking for trouble at the seafood festival. Unwilling to accept defeat, Zhao Jinya joins forces with others to repeatedly sabotage their business. But Yan Xun stands firm on his commitment to quality and overcomes every crisis. In the end, the villains suffer the consequences of their own actions, while Yan Xun and Yan Ruyu protect their fishery and earn their customers' lasting trust through sincerity and quality.