I’m looking for manga

I’m looking for a manga that I read long time ago and don’t remember the name.
It was one shot about a girl who’s in love with her childhood friend but he’s going out with her twin sister. He’s going to propose and the fl helping him choose a ring but then an accident happens and he save her but became blind and after that her sister say she can’t be with him so the fl acting in her sister place until he get he’s sight back.

Does anyone know the manga I’m talking about? Please help