Lin Wanqing, chairman of the Lin Group, in order to find a father for her six-year-old daughter Lin Niannian who does not covet money and treats her sincerely, disguises herself as a cleaner with a monthly salary of four thousand to go on blind dates. Niannian screens twenty-seven people for her mother, all of whom are disliked, until she meets Shen Lidong, a kind and upright cleaning driver. The two support each other with the child, and Shen Lidong angrily rejects his family's debt coercion, welcomes back his bullied mother, and wins the Lin Group's cleaning project with his strength. On the day of signing, Lin Wanqing's chairman identity is exposed. Although Shen Lidong is annoyed by her deception, he is finally moved by her sincerity, accepts her proposal, and the family of four is reunited.