In 2000, in Qingshiwan Village, Xu Haisheng is schemed against by his cousin Xu Dayong and his fiancée Fang Yumei, who conspire to push him off the pier. After suffering a head injury, he becomes mentally impaired and is taken in out of kindness by Lin Xiulan, a widowed villager. Three years later, Xu Haisheng falls into the sea again while protecting Lin Xiulan, accidentally awakening the remnant soul of the Azure Dragon of the East Sea. He inherits the Dragon Clan's powers, including water control, the ability to sense schools of fish, and healing abilities. Having regained his sanity, Xu Haisheng leads the villagers in scientific aquaculture and stands up against local bully Bao Jinshan and unscrupulous businessman Ma Sangui. Through numerous crises involving poisoning, arson, and false accusations, he eventually establishes a seafood industry center, helping the entire village escape poverty and become prosperous. He and Lin Xiulan also finally find happiness together, creating a legendary tale of a fishing village where the dragon awakens.