Every year, a young maiden from a small fishing village is sacrificed to the sea god. This year, Ali who was chosen to be the bride of the sea god has arrived at the island by boat. On her wedding night, Ali discovered her husband, Sea God Yan, was an orc; a half human, half beast. Later, Ali sneaked into a forbidden room and discovered the secret of the bride in the ice coffin. One day at the beach, Ali saved a small injured fish and brought back to the palace and named it Hai Dayu. Dayu transformed into a human and accompanied the lonely and helpless Ali. The two gradually fell in love. After Ali became pregnant, Sea God Yan imprisoned her while Hai Dayu disappeared. The maid Hai Furong opened the cell and rescued Ali. But it turned out that what's waiting for her is a long-established conspiracy.