Office worker Wen Mo accidentally transmigrated into a book, becoming the notorious malicious female supporting character in a CEO novel. To support four children, she goes to Pei Sijie's home to work as a nanny, working odd jobs to make a living while desperately hiding the identity of the quadruplets. However, the four cubs successively encounter Pei Sijie, and Pei Sijie gradually discovers that he actually has multiple sons. Wen Mo works multiple jobs to subsidize household expenses while dealing with the pressure brought by the Pei family elders. As the truth is uncovered, the two slowly untie past knots amidst the daily routine of raising children and emotional tug-of-war, moving towards reconciliation.