While spending his summer holidays at a seaside hotel, Natsuki meets a charming local named Yuu. Their initial attraction quickly leads to an intimate encounter, but the experience takes a shocking turn when Natsuki discovers Yuu's true identity, leaving him bewildered and questioning his own desires.
On the second day of their summer break, Yuu reunites with his partner, who demands "payback" for the previous day's abrupt ending. After a mutual exchange of pleasure, the two share an intense intimate encounter that leaves them both satisfied, ending with an invitation to continue their tryst at a hotel.
Yuu-kun shares a series of intimate moments with his partner at a seaside hotel, but the passion is cut short. After a final encounter, Yuu-kun is left stunned to discover that his partner has checked out and vanished, bringing a sudden and bittersweet end to his brief summer fling.