Young fisherman Chen Haisheng suffers an accident and is fortunately rescued by a White Dragon, with whom he forms a deep friendship. Hoping to build a peaceful and stable life, he relies on hard work and intelligence to pursue coastal fishing and the seafood business, always insisting on honest business practices. Eventually, he overcomes numerous difficulties and establishes Haisheng Seafood. Always grateful and willing to shoulder responsibility, Chen Haisheng stands alongside the White Dragon to protect their beloved blue ocean home, writing a legendary deep-sea tale of repaying kindness, self-reliance, perseverance, and the profound bond between human and dragon.