The introverted and sensitive literary girl Ruan Yuqing and the cheerful basketball captain Xu Chen met on the high school campus. The two met due to an accidental collision, and each was attracted to the other's different qualities. As their relationship deepens, the two discover that each other is wearing a mask of disguise - Xu Chen uses sunshine to cover up the shadow of family violence, Ruan Yuqing uses kindness to cover up her resistance to her mother's remarriage, and they become the guardians of each other's secrets.
