The main character, Tomokazu Mihara, lives with his beloved wife, Maho, at his parents' house with his father.
The couple started living with his father about a year ago-when Tomokazu's mother passed away.
The father, who had lost his energy to live for a while due to the shock of losing his wife and quit his job ...
Thanks to Maho's devoted support, he got over the emotional wound and is completely healed now.
However, the father, who had strong libido, began to feel twisted desire toward the young and beautiful daughter-in-law as his energy has returned.
Tomokazu, who has never dreamed of his father was lusting after his wife, started getting back to child-making with Maho as it was the couple's original goal before living with his father.
However, even after three months to six months, they were not blessed with a child.
"Maybe it's my fault that I can't have a baby ..."
Tomokazu gently comforts Maho, who is troubled and blames herself, that they don't need to rush.
After seeing off her husband who goes to work, the father calls out to Maho who is sighing because she is worried about her fertility.
The father attentively listens to Maho's worry, pushes her down while saying that he will help with child-making.
Maho tries to resist, but is made to feel by the father's veteran sexual skills, and finally gets vaginal cum shot.
After that, the father keeps requesting Maho's young body every time behind his son's back.
While being afraid that the relationship with the father will be discovered by her husband, Maho has sex with the father many times without being able to refuse strongly.
When she was taking a bath or talking to her husband on the phone, or even right next to sleeping husband ...
Despite being tormented with guilty feeling, Maho gradually drowns in sex with the father, which is far more intense and pleasant than with her husband.
[Translated from Getchu]