Kana is worried about her sexless relationship with her husband. One day, while changing a light bulb, she fell off a chair and hurt her back. She considered going to the hospital, but suggested to her husband that a massage parlor come to her house to give her a massage. Her husband prioritized a quick recovery and accepted the massage parlor. During the massage parlor, she was forced to change into revealing clothes and was constantly teased in her sensitive areas, which created a gap between her and her husband, and she began to fall in Kokoro with the man who came to her house to give her a massage.