A married woman, Shiori, who is worried at night, hears her neighbor talking about herself on the phone. Masturbation started from frustration and frustration about that ... At the end of her gaze, an open window and the face of her neighbor. To get angry, he explains that his neighbor, Mitsui, wasn't ill, and that the phone call was about an unrelated couple. The two, who should never have met, have a relationship that makes them sweaty after witnessing this masturbation.