I don't really understand one thing, sorry if it was asked here before, I didn't find it.
There is a tall girl with blond hair with Katou, Nonaka, Hanaoka and Kana. Is she dating the girl from very first chapters (a sister of Hanaoka)? Because she enters the hall in chapter 2 with her. But then in chapter 8 there is one more tall blondy. Who is who, who dates girl, who dates boy, who is whose classmate? And why Takemia Jin even needed to creat a hetero character that hangs out with main heroes???