Otou-san... Nakadashi dake wa Yamete Kudasai ~Tsuma ga Gifu ni Nettori Netorareru Ohanashi~

There was a couple who had been married for four years but were troubled because they couldn't have children. Then the husband's father came and stayed with them, claiming to be in financial difficulty. Without her husband Toshinori's knowledge, the wife, Ayako, was being sexually harassed by her father-in-law, Shigeru. Shigeru then pressured Ayako into a physical relationship, and although she initially resisted, she eventually gave in. At her father-in-law's mercy, Ayako was repeatedly impregnated.