The AV director Koutarou Takahashi, who calls himself the 'lover of a married woman's heart,' invites his wife's female friend to stay at his house with ill intentions. Nothing good happens when a married woman spends the night alone with him... Yoriko, 45 years old, in her 16th year of marriage, no children, fitness instructor. The married woman, who often talks to herself out of curiosity, relaxes in the room when the director returns and panics. After explaining the situation, they enjoy a campfire discussion and are served yakiniku, and the married woman, who has let her guard down, gets excited about dirty talk. The married woman grabs the director's penis, her desire reaching its peak, and lifts her clothes as instructed to accept caresses and writhes in pleasure. 'It's in! It's in!' she repeats lewd words and moans as the penis is inserted. In the dead of night, she is attacked in her sleep and swings her hips like a toy to reach orgasm. The next morning, the married woman, still in heat, orgasms repeatedly from the stimulation of the penis.
