When her husband was laid off, their relationship deteriorated, and Reika started working part-time because she couldn't make ends meet. She had a hard time getting used to the job because she had been a full-time housewife, but after a young man named Jin teaches her how to do the job, the two gradually become closer... One day, Jin invites Reika out for a drink, saying that he will hold a welcome party for her. Reika, who suffers from chronic shoulder stiffness, is good at massages, so she is forced to come to his house, and because she was drunk, she can't refuse Jin's forceful invitation and starts going to the younger man's house who lives alone...