kurumi was living happily with her husband and father-in-law, who had lost his wife. however, she accidentally saw her father-in-law masturbating, and he went wild and raped her. from that day on, she was subjected to daily breeding sex! carried away by the incredible technique and pleasure of breeding with her father-in-law, different from her husband, she fucks wildly without caring if her husband is at home, committing adultery.