Aika is a housewife who looks flashy but is domestic at heart. Although she gets along well with her husband, she is increasingly frustrated because he rarely wants to make a baby. One day, a greasy, single old man moves into the same housing complex. While she is masturbating to soothe her frustration, the old man, who came to greet her as a new neighbor, catches her in the act. The two, who should never have crossed paths, begin an intense, sweaty affair triggered by this embarrassing discovery...
