Fang Xiaoman, abandoned and wandering outside since childhood, naturally possesses the special ability to listen to the sound of the sea, accidentally foreseeing a maritime disaster and saving the wealthy man Gu Zhenshan. After reuniting with her family from whom she was separated for twenty years, she discovers that only her second older brother, Fang Haisheng, genuinely cherishes and loves her. Recovering her clarity, Fang Xiaoman chooses to continue playing the fool, seizing the opportunity to see through people's hearts. To repay her second brother, she lavishly throws three million to purchase a fishing boat, and relying on her skill of listening to the sea to recognize fish, helps her second brother break through heavy dilemmas, carving out a career on the sea. Along the way, Xiaoman not only guards the precious family affection, but also harvests her own love and happiness.