After marriage, Yuki continued working as an office lady at a travel agency. Her husband had been living apart for work for the past three years, leaving her to live alone most of the time. Loneliness led her into an affair with her boss, Nakazawa, who, however, began distancing himself after his wife became pregnant. Though it was an affair, Yuki had fallen deeply in love, and hurt by Nakazawa's changing attitude, she decided to win him back by engaging with other coworkers. How this decision affects his feelings will determine the course of their story.