OFES-004 The shut-in older sister who never leaves her room has become a total recluse with zero social skills, but after years of staying indoors, she now has an extremely voluptuous figure and a very large backside. She has been training herself in anticipation of meeting a real partner someday. It turns out that the older sister, Reo Fujisawa, has leveled up into a highly alluring body that would score 120 points as a romantic partner.

Since high school, my older sister had become a shut-in. When I, who had moved to Tokyo for university, returned to my parents’ home for the first time in years, I learned that she was still being spoiled and living as a shut-in. Curious about the sounds coming from her room, I peeked inside and found that my sister, now grown into a very voluptuous and curvy woman, was pleasuring herself. I was completely overwhelmed by excitement at seeing my sister, who had become a chubby, introverted recluse with overflowing desire and spent her days indulging herself. With me already aroused, my sister even invited me to be intimate with her. A thrilling, full-on encounter with my sister’s striking and alluring body throughout the house. In the bathroom, and even in the living room while hiding from our mother. Swimsuit and school-uniform cosplay, too. A passionate, indulgent story with a captivating, voluptuous body.