Rima, my little sister, always wears short skirts and knee-high socks, making her thighs incredibly eye-catching. Her soft, plump thighs—typical of a girl in puberty—bulge enticingly out from under the tight squeeze of her knee-highs, driving me wild just looking at her. When she lounges around like that, it's only natural her skirt rides up, revealing what's underneath. To Rima, this might seem completely normal—maybe because we're siblings, she doesn't think twice about it. But for me, Rima's thighs are something sacred. The reason I dare to trespass into her absolute territory is because I'm her beloved older brother. The way she reveals herself only in front of me is pure temptation. Even the rare moments when she treats me gently leave a lasting impression on my heart. I was born to worship Rima's absolute territory. And even when she looks down on me with contempt, it brings me a special kind of joy. I'm disgusting. But that's exactly why I can invade her absolute territory. Of course I'm obsessed with Rima's thighs—it's only natural.