SONE-822 I longed so much for my girlfriend's innocent, shy, and immature younger sister that I secretly had sex with her. - Saki Shirakami

It was my first time visiting my girlfriend's house. My gaze was drawn to her younger sister, Sakka, whose slender thighs peeked out from under her skirt as she dozed off, completely unsuspecting. Her skin was translucent, her ankles delicate and supple. When my fingertips lightly touched her tender body, Sakka trembled with fear. "No, no..." she cried out in terror, tears welling in her eyes, her slender arms struggling desperately to resist, further shattering my reason. But her unreliable strength did just the opposite…