In 1998, the chronic gambler Chen Haichuan is slapped awake by his elder brother and unexpectedly travels back to the time before his wife and daughter meet with disaster. His daughter is urgently waiting for surgery, but he has squandered five thousand yuan of life-saving money and incurred debts to his relatives. The conch on his chest awakens the power of the divine dragon, allowing him to breathe freely in the deep sea and understand the speech of marine animals. This time, he will not gamble; he will rely on his own ability to support his family. From the distrust of his relatives to the competing offers of collectors, Chen Haichuan pays off his old debts one by one and gradually wins back his wife's heart. In this lifetime, not only will he salvage ocean treasures, but he will also protect his wife and daughter and guard this home.