Airi was wearing new underwear in front of the mirror so that her husband could see her as a woman. Uchimura, a young man next door to her, who is in love with her while peeking at her. One day, Airi is forced to lose her chastity to Uchimura who runs away. Her husband refuses to pay attention to her conflicted wife, and she, out of loneliness, accepts her neighbor who wants to hug him. Sending out a husband who doesn't notice her wife's Ayamachi, the married woman continues to drown in the pleasure of unfaithfulness today.
