To escape harassment, Su Xinling falsely claims to be the girlfriend of Gu Shaolin, the president of the Gu Group. An unexpected incident brings her and Gu Shaolin together intimately, after which she leaves for a foreign country. Five years later, Su Xinling returns home with her son, Luoluo, only to unexpectedly cross paths with Gu Shaolin again. Clever and adorable Luoluo becomes convinced that Gu Shaolin is his father and insists on acknowledging him as such. Faced with the sudden appearance of a 'son,' Gu Shaolin is utterly shocked, but he is also captivated by Luoluo's intelligence and cleverness.