Nina devotes herself to work as an escape from her unhappy marriage. When she returns home, the cold war with her husband begins again. She didn't want to go home... Nina had a gloomy look on her face, but it was her colleague Kazuya who stopped her. He worries about Nina's lack of energy and offers her a special cup of coffee. She has someone who cares about her. That alone made Nina happy, but she ended up confessing to him... He learns the joy of being loved by his wife as her only woman, and begins to drown in the immoral pleasure of her betrayal.
