Identify Search for the title of the game

[khoi2112]

The game I wanna find is a training sister game with silver hair sister. By the way, it's a visual novel game
Thanks a lot

 

[TheBlueKnight]

Silver hair and trainer style gameplay makes me think of Sylvie, but she's not your sister. Although you can eventually tell her to call you brother if you want.

 

[khoi2112]

Silver hair and trainer style gameplay makes me think of Sylvie, but she's not your sister. Although you can eventually tell her to call you brother if you want.

Thanks but it isn't. Maybe it isn't with silver hair sister

 

[Sieglinnde]

the only that came to my mind is Yosuga no Sora