College student Kuki looks like a player at first glance, and his history of being dumped by girlfriends for his high sex drive isn't helping his case. When he bumps into his classmate, Yukina, one day and tries to hand back the guy's fallen earbud, he gets a "Let go! Pervert!" for his troubles. Now Kuki's worried he might have offended Yukina somehow, but when he tries to find out what he did and apologize, it's like talking to a brick wall. In the end, Yukina flat-out runs away from him and Kuki is now positive the guy hates his guts... until they run into each other at a bar one night and Yukina does a 180, diving in to kiss Kuki out of nowhere. Seeing the frosty Yukina so needy and disheveled is too much for Kuki to resist and it's only a matter of minutes until they're going at it in a nearby hotel. It's the best sex Kuki's ever had - so good that he passes out from the bliss (if you can believe it). And if that wasn't enough excitement for one night, Yukina drops a bombshell on him once he wakes up...