Han Chaosheng is reborn in 1998, burdened with enormous gambling debts and facing distrust from his wife, daughter, and in-laws. At his most desperate moment, he awakens extraordinary abilities: communicating with marine creatures and breathing underwater. After rescuing a little sea otter named Lizi, he gathers a team of underwater animal companions and dives into the sea to discover sunken treasures, forgotten shipwreck riches, and precious seafood. He first pays off his gambling debts and gradually wins back his family's trust. While hunting for treasure and building his business, he also carries out maritime rescues and fights unscrupulous seafood merchants. Eventually, he establishes the Listening to the Tides Maritime Rescue Cooperative, achieving redemption and protecting both his family and the ocean.