Shen Yun, the former Dragon Lord of Daxia, retires to the city and sets up a stall at a construction site selling boxed lunches while secretly searching for the lover he lost eighteen years ago. An unexpected encounter brings him together with Qin Man, a female CEO, and he becomes known as "Uncle Shen" to Qin Yue. Facing harassment from wealthy families, corporate crises, and conspiracies orchestrated by Fusang experts, Shen Yun repeatedly steps in to protect the mother and daughter, while his hidden identity gradually comes to light. When the family finally falls into danger, he discovers that Qin Man is the woman he has been searching for all these years, and Qin Yue is actually his biological daughter! The former Dragon Lord takes action once more to protect his wife and daughter, and at last, the family is reunited.