After his cousin died of illness, picture book editor Xu Zhihe unexpectedly became the temporary guardian of four-and-a-half-year-old Li Li. While dealing with work, she clumsily learned to take care of her children, but discovered that behind Lili's sensibleness, there was a secret of fear of being left behind.
A high fever late at night led Xu Zhihe to meet Gu Chengan, a pediatric rehabilitation doctor. Dr. Gu gradually enters their lives and accompanies them to face custody, family doubts and emotional tests.
But just when this little family was starting to take shape, Li Li's biological father suddenly appeared. Can Xu Zhihe still keep this family?
