Koichi Takahashi, an AV director who calls himself the ``lover of a married woman's heart,'' lets his wife's female friend stay at his house with ulterior motives. - There's no reason why a married woman who spends the night alone with her has nothing to do with her... - Misuzu, 30 years old, married for 3 years, no children, department store information. - I was supposed to rent the room of a married woman's friend's husband while the husband was away, but...we unexpectedly ran into each other and ended up staying together. - As we started drinking and getting to know each other, I talked to my partner, who is an AV director and shoots how-to videos, about how little we do as a married couple. - A married woman is forced to change into sexy underwear after receiving some advice. - When I surrender my body to the naughty atmosphere, the penis is inserted into the wet vagina that makes an embarrassing sound and I climax. - The married woman was supposed to have finished studying to make her husband interested, but when he fell asleep, she masturbated with a toy, and the next morning she played with the sleeping director's penis. - Having sex again, she enjoys the pleasure and says, ``Does it feel good, Takahashi-san? It feels good for me, too.''