Rin Suzune, who says "I've only dated M-kun once." She, who had secretly developed an S heart since then, was actually a genius at being a slut! Teasing men with an innocent smile, massive ejaculation with skillful blowjobs and nipple torture! What's more, anal torture and even piss squirting with enthusiasm!? Visiting M-kun's place in Tokyo late at night and tormenting him until morning!