More Than a Hookup, Less Than a Lover

Hiro, a college student, is the casual sex partner of Aya, a sloppy office lady who lives next door. Their arrangement began when, after he helped her when she lost her key, she ended up taking his virginity.

Following that encounter, the two continued their relationship as neighbors who have sex. However, when Hiro tells her he has received a job offer and that his move has been decided, Aya suddenly bares her sexual desire and begins to pounce on him.