Rena is a married woman who has been married to her husband for 10 years, but is troubled by her cold relationship. The relationship worsens when her husband forgets to make a dinner reservation for their anniversary. In this tense situation, the only thing that soothes Rena is Ozawa, a chiropractor who lives next door. Rena's heart is lightened by having him listen to her complaints about her husband during a massage, and every time Ozawa touches her with his strong, gentle hands, she is reminded of the joy of being a woman. Her body is so hot that she forgets her guilt and desires Ozawa as a man, and Kokoro becomes immersed in a close sexual encounter with her lips and legs entangled...