While my wife was back home to give birth, I ended up cheating on my coworker, Nishimiya, who I was visiting on business with, over and over again... A perfect physical relationship Nishimiya Yume - Yume Nishimiya

The movie depicts a scenario where a husband, while his wife is away giving birth, engages in an affair with his coworker Nishimiya. The story explores the development of their illicit relationship, fueled by their mutual attraction and desire. As they navigate their secret encounters, the protagonist struggles with guilt and the consequences of his actions, all while maintaining a facade of normalcy in his professional and personal life.