Lin Hai's family makes a living from the sea, but their fishing catches are unpredictable and the family struggles financially. When Xixi arrives at the Lin household, she discovers she can understand the language of the sea, fish, and birds, helping the family find seafood and avoid dangers at sea. As the family gathers seafood and sells their catch, they face Qian Guangjin's unfair price cuts, roadblocks, and rigged scales. By working together, the family expands its business from the docks to the county town, helping the entire village prosper and gradually transforming their once-poor lives into comfortable ones.