Miu and her boyfriend have been dating for a while. But since she won a beauty contest and decided to work in a normal office job, her boyfriend's attitude has changed drastically. He is just like everyone else, always saying that she just needs to rely on her looks to do some easy jobs. Such words make Miu very uncomfortable. This time, she went on a business trip with her department manager, Takeda. Due to a train accident, they had to stay at a hotel. Takeda has been interested in Miu for a while, so he saw this as his chance. He approached and seduced Miu. Although she couldn't speak out, Miu almost didn't resist Takeda. Gradually, the pleasure of the sexual feelings that Takeda brought made Miu no longer care about her boyfriend. She indulged in the sexual pleasure that she had never experienced before. Both of them enjoyed each other throughout the night until the next morning, ignoring Miu's boyfriend who was at home, worried and waiting for her return...