Because of his family's poverty and his younger sister's serious illness, Lin Hai is publicly humiliated and dumped by his snobbish fiancée at the pier. At the lowest point of his life, he accidentally touches the Heart of the Sea God and becomes bound to the Sea God System, beginning his journey from rags to riches through sea harvesting. The system can not only accurately detect hidden seafood but also predict tides and unlock extraordinary abilities such as diving and access to market information. With these incredible advantages, Lin Hai successively catches rare marine treasures, including ornate spiny lobsters, giant razor clams, and wild groupers. He manages to gather the money needed for his sister's urgent medical treatment, helps his best friend build a fortune, and gradually turns his life around, ultimately achieving a perfect life.