Lin Yu obtains a dad system that can only be bound to him if he has a child! To meet the system's requirements as quickly as possible, Lin Yu soon gets married, only to be divorced less than half a year later. He doesn't even have enough money in his pocket to pay next month's rent. Just when his life hits rock bottom, he returns to his shop late at night and discovers an adorable, soft-spoken three-year-old child at the door!