Sara, whose libido is too strong and makes her want to masturbate anytime, anywhere. In the pool where everyone enters, in the gym where men are training, in the corridor next to the classroom during class, secretly in her friend's room, hiding from the people playing badminton in the gymnasium. I know I shouldn't do it in a place like this... but because I know, it feels good and I can't stop. Moreover, she's not satisfied with just masturbation, and even has sex with the men she witnessed...
