Before the age of 10, Hu Guoguo's wish was to no longer have to go to the hospital and to play with Gao Donglin every day.
After turning 10 years old, Hu Guoguo's wish was to recover from her illness quickly and return to China to find her brother Lin.
Now, Hu Guoguo's wish is that her brother Lin can live happily, even if the person accompanying him is not herself.
Gao Donglin didn't even know that he had such a deep obsession with the sister who followed him all day long and called "Brother Lin" every time.
Ever since Hu Guoguo was 10 years old, he had been living for her. The driving force to move forward every day is her, Hu Guoguo.
It turns out that feelings have deteriorated subtly.