The masseur I was assigned repeatedly touched my sensitive genitals, to the point that I couldn't bear the pleasure, and he cheated on me. (Kana Imai, DASS-627)

Kanna, a married woman living a peaceful life with her husband Kenichi, feels dissatisfied lately due to their decreased nightlife. One day, while out with Kenichi, she unexpectedly encounters Kenichi's junior colleague, Takao Yamaguchi. A few days later, while the three are having hot pot together, she learns that Yamaguchi works as a part-time masseur. "Want to try it?" she says casually, beginning a massage. However, each time Yamaguchi's warm hands touch her skin, Kanna's body gradually heats up. From that day on, Kanna can no longer forget Yamaguchi's techniques. Unconsciously, she begins secretly calling Yamaguchi to her home, secretly requesting a massage... "It's just a massage, why..." During the massage, each time Yamaguchi's skillful fingers touch sensitive areas, Kanna's body reacts involuntarily. Ultimately, her dependence on massage transforms into a desire for Yamaguchi—