It's been six months since I started dating my girlfriend. Her name is Hiroshi. Her mother, Reiko Kobayakawa, is a single mother who raised her daughter on her own. She's kind, beautiful, strong-willed, and carries herself with a calm, mature presence. However, behind my girlfriend's back, I've also started a sexual relationship with her mother. We both know this affair is wrong, but we can't resist the overwhelming desire that keeps drawing us together.