At her husband's request, Reika became the caregiver for her father-in-law who had fallen ill. However, this was actually to fulfill her husband's cuckold fantasy... During caregiving, her ass is touched and while chewing, her tongue is entangled by her father-in-law. Despite being subjected to crude sexual harassment, Reika endures it desperately for her husband. But her body gradually becomes invaded by her father-in-law...
