Parents both dead, wife died early, fishing village youth Lin Hai is forced by big uncle and second uncle to sign a family separation agreement, only getting a broken boat and a dangerous house, leading two young sons at the end of his rope. In the desperate situation, he saves a cultivating otter, accidentally obtaining the talent to understand marine creatures and predict fish schools. With the help of a crowd of sea close friends like the spiritual otter, dolphins, sea turtles, he fishes top-tier seafood every time, counter-attacks against the wind, slaps greedy close relatives, from a desperate lonely bitter milk dad, finally becoming the beachcombing king whom no one in the whole fishing village refuses to obey.