Jibun, her name is Hiroshi, and I've been dating her for half a year. Her mother, Kozue, is a kind, beautiful, hard-working adult woman with a calm demeanor who raised her daughter on her own as a single mother. But actually, I'm secretly in a relationship with her...and I've even had sex with her mother... Kozue and I both think that this kind of relationship is not good, but we can't stop each other from being horny and having a desire to reproduce.