ROE-544 When I went home, my grandfather and mother were having sex. That day's incident turned me into a lifelong 「mature woman lover」―. Inamori Masaru.

Having left my hometown and living in Tokyo, I returned to my parents' house for the first time in a long while on vacation. My parents and grandfather live at home. After my grandmother passed away, my mother is caring for my grandfather, who is depressed and half bedridden. My father has no interest in family life and spends all his time going out. One day, a strange voice came from my grandfather's room. That was unmistakably the voice of a female. Curious, I quietly opened the shoji screen. Then...in the room, there was a very vulgar image of my mother, who was having her breasts sucked and seemed to love my grandfather's cock...