ROE-432 One day, witnessing the twisted master-servant relationship between my parents. After midnight, my mother transforms into an aggressive slut and manages our ejaculations... Yuka Mizuno.

My home is a bit strange. With a domineering father (Koji) and a gentle, kind mother (Yuka), it seems like an ordinary family at first glance. My father often yelled at my mother in a harsh tone. I often worried about my mother, but she seemed to accept my father's attitude. There is a forbidden room in my house that I'm not even allowed to approach. One day, after 12 PM, while taking a break from studying for exams to go to the bathroom, light and moans were leaking from that room. Out of curiosity, I peeked inside, and it was my dad's voice. The father who was spanking his mother's ass during the day enjoyed being spanked by his mother wearing lewd underwear. From that day on, I came to experience firsthand the reality that my mother is the ruler of this house...