Akane is an unassuming office worker. She's lived her life just going with the flow. She gets boyfriends, but the relationships never last. Usually, they end because her boyfriends cheat on her... One day, due to a mistake at work (Akane's), her boss orders her to stay late with her colleague, Kowloon. On the way home from work, Kowloon aggressively seduces her, and they end up having a one-night stand. Emboldened, Kowloon continues to make advances on Akane even at work. When Hayashi finds out, he offers her advice, but then Akane also spends a night with him...