Reborn back to the past, Shen Haichuan awakens a special seafood system. To protect his wife and children, he fights against his biased and harsh original family. He catches seafood and gathers treasures, sets up a seafood cooperative, leads the villagers to open up Jubao Bay, fights against the unscrupulous merchant Qian Wanchang and greedy relatives, breaks free from the shackles of foolish filial piety, earns a stable life through his skills, and guards the happiness of family reunion.