Kaoru, a 37-year-old housewife who has been married for 16 years, is worried about not having sex with her husband for 8 years.One rainy day, Kaoru is on the balcony trying to take in the laundry when she meets Yuta, a college student who lives next door.Seeing Yuta's kind expression and the way he sees her as a woman, Kaoru's feelings of being a woman that she had forgotten come back to her...From that day on, Kaoru tells Yuta a secret sign on rainy days.``I was drying my panties and my husband was away, so I wanted to have sex.'' Kaoru becomes completely absorbed in a dripping wet affair with Yuta.
