To raise medical-related expenses for her family, Xu Nanzhi applies for a short-term family companion position at the Gu family. Four-and-a-half-year-old Gu Xingye has a sensitive personality and finds it difficult to get close to multiple caregivers, showing exceptional reliance only on Xu Nanzhi. The agreed service period is about to arrive, and when the child's biological mother returns, Xu Nanzhi, who should have left on schedule, makes the usually reserved and restrained Gu Jingchen feel reluctant to part, unwilling to separate from her thus.