Four-year-old Qian Duoduo is clever, quick-witted, and can understand the language of fish and birds. At the docks, she gives an early warning and saves the entire Shen family's merchant fleet. Jiangnan's richest woman, Shen Yunshu, adopts her as her daughter. Bringing along her old boat and three adorable ducks, Duoduo moves into the Shen residence, where she gets into all sorts of hilarious mischief. While stubbornly searching for her biological father, she encounters many impostors claiming to be him and experiences numerous heartwarming moments. Eventually, she reunites with her birth father through half of a fish-shaped silver bell. Surrounded by the warmth and companionship of the Shen family, she gains twice the family and an abundance of love.