The main premise is that this guy has a crush on this friendly Gyaru girl in his class but one day he sees her having sex with someone else in a class (first chapter). She then says she has a lot of sex friends when he asks her about it. They eventually also become sex friends. Her sister tries to start a threesome. The guy even flunks classes because he was focusing so much on having sex with her.
They even take a break from being sex friends so he can study but he ends up having sex with a different girl.
The main premise is that this guy has a crush on this friendly Gyaru girl in his class but one day he sees her having sex with someone else in a class (first chapter). She then says she has a lot of sex friends when he asks her about it. They eventually also become sex friends. Her sister tries to start a threesome. The guy even flunks classes because he was focusing so much on having sex with her.
They even take a break from being sex friends so he can study but he ends up having sex with a different girl.