Mako Oda, a married woman, has been building up sexual frustration from daily stress, which she tries to relieve through dance, using physical movement to release her pent-up emotions. However, her outlets are limited. One day, her neighbor, a virgin man named Suzuki, comes over to share some snacks, but Mako doesn't notice his arrival. Lost in the moment, she continues dancing alone, sensually and fetishistically moving her voluptuous body, eventually beginning to unconsciously masturbate. At that moment, Suzuki enters the room. Mako suddenly realizes his presence and panics, but when he grabs her hand, her confusion deepens, pulling her into a seductive spiral of lewd acts.