Three years into her marriage, Mahiro was troubled by her relationship with her husband. He told her she was plain and he couldn't see her as a woman anymore, and the rift between them grew day by day. Then, in line with the company's policy to give Mahiro experience, she was scheduled for a business trip with her manager, Noguchi. For a year, Mahiro and Noguchi's conversations were limited to work... To deepen their relationship, Noguchi invited Mahiro out for drinks before the trip. On the day of the trip, Mahiro gradually opened up to Noguchi and became more comfortable around him. Then, Mahiro got drunk and passed out, only to wake up in a love hotel. Noguchi, a gentleman, assured her that nothing had happened, but Mahiro said she didn't want to go home yet, and they shared a passionate kiss...