Koichi Takahashi, a self-proclaimed "lover of a married woman's heart" AV director, stays at his home full of ulterior motives for his wife's Mr./Ms.'s female friend. There is no reason for a married woman who spends the night alone with two people ... Kumiko is 35 years old, has been married for 11 years, has no children, and helps out at the family udon shop. - The landlord who should be absent returns and the married woman who was in a hurry also has dinner with her and is in a relaxed state, confessing her worries that she has no charm as a woman. A married woman who is not confident is encouraged by the director and decides to receive a lecture on how to shorten the relationship with her husband. - She accepts guidance that gradually becomes radical, and it is OK to insert a phallus by groping her genitals with a little slogan. - She climaxes every time she changes her position, and she immediately comes in the back. - A that wakes up in return for being squid by midnight toy blame. Even in morning SEX, she twists her hips obscenely and faints in agony.