While preparing for an exam, I came across a problem I couldn't solve and entered my sister's room. As she sat on the sofa explaining it to me, my eyes were drawn to her legs—her panties were clearly visible beneath her short skirt, and I couldn't take my mind off them. Noticing my gaze, my sister teased with a laugh, "Are you turned on by your big sister?" guiding my hand toward her body as I eagerly pressed against her. Features three characters across three stories, each showcasing their unique charm.