At first I was curious about the students unique fetishes but so far everything seems to be about the Gyaru bitch being an absolute bitch.
Originally I thought that it might be revealed that her and Fushiguro were just S&M partners, and that Fushiguro has a secret humiliation fetish but she clearly isn’t into any of this and Kurumizawa is just going out of her way to abuse her.
I’ve seen the official raws and Kurumizawa is fucked up. Don’t care what her fetish is, she shouldn’t just get away with something like that. The author made a mistake focusing most of these early chapters on that one bitch.