I was caught peeping at my sexually disturbed older sister with a huge, horny buttocks masturbating. I was then forcibly mounted by him, covered in sweat, and repeatedly subjected to his beastly, pounding assault, becoming a greedy, nymphomaniac. (Summer Homecoming - Hasumi Claire MFYD-167)

Kanata, a university student in Tokyo, returned to his hometown during the Obon holiday after several years. Finding the scenery unchanged, he finally returned home three years later. However, upon arriving, he was met by his nearly thirty-year-old sister, Claire, wearing a high school class T-shirt and living in a garbage-filled room. Divorced during Kanata's time in Tokyo, she had become a listless woman who spent her days watching BL (Boys' Love) and living a lazy life. One day, Kanata inadvertently peeked into his sister's room and witnessed her, covered in sweat, masturbating with her astonishingly large buttocks. Just as he was captivated by her perverse masturbation, his sister discovered him and forcibly dragged him into the room…