Yamahime No Sane/Jitsu Vol. 1

山姫の実 第一巻 M江

The protagonist Kazuya lives with his mother, they are a family of only two. One day we wants to buy a laptop but his mother is against it, however Kazuya still buys the laptop and is keeping it a secret form his mother.  

Of course as soon as he gets it he starts searching for adult websites, he randomly chooses one and when he enters the website he goes into a shock because the woman that appears before his eyes in all kind of erotic situations looks a lot like his mother. The website features only that woman being trained by a middle aged man. Kazuya immediately begins to doubt his mother since she has also been acting strange lately... 

Yamahime no Sane/Jitsu Vol. 2

山姫の実 第二巻 真砂絵

Kazuya  was doubting his mother more and more by the day. One day he reads in the adult website that has pictures that look like his mother that the webmaster, the trainer of that woman was planning a "training camp".  

At night his mother arrives home and prepares dinner, at this moment she tells his son that she has to go on a trip for a couple days, at this moment Kazuya remembers that the website had specific dates for the training camp, with a trembling voice he asks "When are you going Mom?"  and his mother says "Next week from the 15th to the 16th"  This is the exact dates for the training camp as well. After this since the website was asking for young men to participate he decided to contact the webmaster and go to witness the truth for himself... What is the truth? Is his mother really having sex with strangers that easily?... 

Yamahime no Sane/Jitsu Vol. 3 Kizuna

山姫の実 第三巻 きずな

"Mother and I live together in a small apartment, we have a small but happy family. One day I noticed that my best friend only came to visit when I was not home..why...my mother casualness towards him is also suspicious.

One day returning to home I noticed my friend was just outside my house and left nervously as soon and he saw me. I investigated and found my mother's panties full of semen! Could it be he is secretly masturbating with my mother's panties...

I grew suspicious and decided to hide home to see what was going on while I was out and soon I discovered everything.... Yes, my mother is having wild sex with my best friend while I am not home..."