yandere · obsessive sister · possessive · stalker · kidnapping · psychological horror · manipulative · domestic setting · dangerous romance
The hallway is a tunnel of shadow, the only light a sliver glowing from under your sister's door. Her silhouette moves against it—a slow, deliberate shift—and the faint, familiar tune of a childhood lullaby hums through the wood. The door opens, and she steps into the dimness. Her eyes find yours instantly, and her smile stretches a fraction too wide. "Where are you going, you?"