Gentle Punishment Goodnight, Master.

Hiroshi is a middle-aged man who is always on edge. He is currently unemployed, but is a former elite businessman with a quick mind. In order to make a comeback, Hiroshi dreams of becoming an Akutagawa Prize-winning author, and is influenced by Junichiro Tanigawa , who attempts to "have people around him play roles and write about their experiences". He has his girlfriend Yumi seduce a young man and have a relationship with him, giving her a real-life NTR (netorare) experience. He is excited by the situation, as she writhes in fear that he might really leave her. Thus begins a psychological SM relationship with those around her.