Haruka Katsuragi, who is married for 4 years and usually works as a popular health teacher among students, appears in an adult video. Haruka, who is sexually greedy, came to hear a talk at the recommendation of a friend, but she couldn't suppress her sexual frustration and decided to appear in the video. She exposes her beautiful breasts and glossy body, and when the sex begins, she forgets her guilt towards her husband and becomes absorbed in the pleasure of his penis. She returns home with a smile on her face.