A female college student who would have ended up in an ordinary life, ordinary sex, and eventually an ordinary marriage is drawn into an unusual sexual experience by chance. She's a private tutor who intervenes between a son and his mother. This strange love triangle creates a skewed sexual relationship. Nikkatsu depicts the subtleties of female psychology, which sways subtly in such a perverted world.

In a summer in Shonan village, Sumiko is the daughter of an important upper-class Shikishima family, she loves to paint pictures, is going through a cooling-off of an arranged marriage that did not work out. However, she feels attraction for Nishina a rough and obscene man ... On the other hand, the younger sister, Naomi Sumiko is envious of her sister for her beauty. Naomi feels ugly since all men seem to like Sumiko. Both sisters then become embroiled in a major problem in discovering the real intentions of Nishina, a man who hides behind a mask to rape women.

Kimiko, who came from the countryside, gets a job at a travel agency, but the manager she is introduced to is Yu, who was the person who molested her on the train. Feeling somewhat responsible, Yu teaches her the job and also gently guides her to become a more urban woman. Kimiko begins to have feelings for him, but is shocked to find out that Yu secretly loves Eri, the secretary to a client's president. Then, due to a certain incident, Kimiko ends up going to a hotel with that client's president, Chikamatsu...

Pink film by Toei.

After a client is killed, three women become involved in the search for the money he hid in a locker.

Pink film by Akifumi Kageyama.