Marital Exchange Rooms, Carnal Contracts For Money, Men Flocking To Ripe Bodies

It was a bolt from the blue for Mami Kishimoto when her husband caused an accident and was imprisoned. Her husband's older brother, Kiyoshi, appeared around that time, and after forcibly embracing Mami, he said he wanted to support her financially. Since then, their relationship has continued, but one day Kiyoshi suggests introducing her to someone who can give her more money. The man's name is Norio Sakakibara. He lives with his wife Keiko and is clearly wealthy. 'From now on, I'll be using your body freely for a while... Got it?'