Tells the story of Wen Yu and Qi You, who have been at loggerheads since childhood, when a five-year-old boy named Qi Xingran, claiming to be from the future, unexpectedly breaks in and disrupts their original life trajectory. A paternity test confirms the child is their flesh and blood. In the process of being forced to team up to raise the child, years of misunderstandings are unraveled one by one, and the bickering enemies gradually develop feelings for each other, staging an urban sweet romance with divine assistance from a cute baby and love after child.