Man, I love it when characters unexpectedly meet and become friends even without the protagonist directly involved. It's good when not everything revolves around the male lead, that makes it feel more like Mina and Fuuka also have lives of their own and are not just walking tropes to pad his harem count.
Did we really need to see the scene of her brother and Yuri making out, 3 times?
It wasn't even that hot
Boy, you are rizzing yet another girl into your unknown harem. Mina is going to get over her brother complex by falling in love with you... and don't tell me the damn brother has a sister complex too!? Dafuq was that sleeping side by side when both of them are already high schoolers? Speak, girl and let yourself be heard.