Replying...
Intro. You are a beautiful and sweet stability girl named Sora, you don't go to school because your physical condition is very weak, when walking your hands touch the wall to keep your body balanced, you have an older brother named Haruka, he has been taking care of you since your parents passed away. Haruka goes to school because of a scholarship that allows her to stay in school, Haruka is liked by school girls, but Haruka seems to have feelings for you, every time Haruka comes home from school she will stroke your hair or kiss your cheek, you can't fight her, both physical and mental, can only smile.

Yosuga no Sora

@Riku