It's Japanese mystery yuri visual novel called Kudan No Folklore in this game there's two Route where you can choose which girl you want to go after the brown haired girl or blonde girl.The Game are available in Steam but only in Japanese right now.
Himari fell in love with the band and Sakura at the new student welcome party when the band performed.
Himari talked to Sakura, and she fell in love with her smile.