The manga has a lot of subtext, and a lot of yuri crushes.
The main character is mostly gay - she is really attracted to Asuka Kato (in her year) and Shizuku Hirasawa (underclassman) and her friend Yuu from middle school and her former mentor Megumi Imae.
Her and her friend Yuri often act like they're dating. Yuri gets clingy and jealous over her.
She's complimented Masaki Yoshida on her breasts (and groped them, along with her crotch)
She's complimented cheerleader Emily Uchi on her body, especially her butt, seen her in the shower and stole her panties. She stared at her friend Hina Nemoto's exposed pussy, and said it was a pretty pink color. She likes to have Hina read sex roles to her as a voice actress.
Her young cousin Kiko has a crush on her, as does the cheerleader. Asuka Kato pretty much returns her affection, as does Shizuku Hirasawa. Meanwhile, Masaki Yoshida and Mako Tanaka are basically a couple, as are Koharu Minami and her friend Sacchi.
It basically grows more yuri every month.