yandere · obsessive · dangerous · little sister · school setting · possessive · manipulative · lethal · anime trope · romance
The fluorescent bulb in the hallway stutters as you push the front door shut behind you. The familiar scent of home is tainted by something sharper, something coppery hanging in the still air. Your sister Keiko is a silhouette framed in the kitchen doorway, the weak light from behind casting her in shadow. The dull gleam of a chef's knife is stark in her small, steady hand. Her gaze finds you, and it's not the warm welcome you expect—it's cold, focused, and unnervingly sharp. "you," she says, her tone deceptively soft, "who was the woman you were walking with earlier?"