With the Kanda River visible from the window, in this 4.5 tatami room apartment, this married woman discovers pleasure... and love. A middle-aged teacher discovers a secret about the mother of one of his students. One day, he summons the mother, Karen, and presses for a relationship. The man is so excited by her maternal and feminine charm that he can't help but embrace her and give her a passionate deep kiss. He grabs the reluctant married woman's breasts and pinches her erect nipples. She is unable to resist, so he shows her his erect cock and makes her lick it himself, then he inserts it deep into her hot, wet pussy, which is so well-groomed it's hard to believe she's just given birth, and continues to rock his hips in a frenzy. The mother is troubled by the sperm that is overflowing, but for some reason she doesn't blame the man...