Nineteen-year-old design maiden Zhu Lingyu has been infatuatedly in love with Meng Ke for seven years. A teenage boy claims to be the future son of her and capital tycoon Zhou Chenghuan, and a paternity test confirms this matter. The boy constantly plays matchmaker between the two, and though Zhu Lingyu is wary of Zhou Chenghuan due to past misunderstandings, she is repeatedly stepped up and protected by him. Unwilling to lose her, Meng Ke suppresses and gives her a hard time through various means. When the truth is unveiled, the person who imprisoned her back then was Meng Ke, while Zhou Chenghuan had taken the blame on her behalf for many years. The two clear up their estrangement and become a couple, joining hands to quell the Zhou family's internal strife. After completing his mission, the boy dissolves and departs due to spatial-temporal limits. Two years later, Zhu Lingyu is pregnant once again, and the two are full of expectations, quietly waiting for the reunion of their family of three.