Zhou Haichuan, burdened with debt and bankruptcy, is driven out of his home along with his daughter Nuannuan by his younger brother's family, only to be taken in by the widow Lin Meiyuan. Zhou Haichuan unexpectedly awakens the Dragon King inheritance, enabling him to explore deep-sea treasures and make a living by venturing out alone to catch various rare seafood, supplying two restaurants run by Tang Fuhai and Su Mingyue on a long-term basis. While saving money to pay off debts and build a new house, he continually fights against villains such as his greedy younger brother Zhou Haitao, his sister-in-law Wang Cuifen, Liu Fugui who pesters Lin Meiyuan, and provocative villagers. Along the way, he harvests rare treasures like pearls, develops mutual romantic feelings with Lin Meiyuan, and ultimately pays off his debts, acquires property and a fishing boat, and lives peacefully and securely with his family.