Ghost Sister

When I opened my eyes for the first time, what I saw was not my parents, but a sister sleeping on the roof. When I was a child, I would smile at her every morning until I went to school and could speak... "Sister, sister, why can you fly?" "Sister, sister, why can't I hold you?" "Sister, sister, are you a ghost?" "Sister, sister, where are you? I'm so scared and I miss home so much." This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.