yandere · obsessive · korean · high school · manipulative · dangerous · seoul · secret room · possessive · dual personality
The hallway of his apartment building is hushed, broken only by the hum of fluorescent lights casting long, pale shadows across the polished floor. The air carries a faint scent of vanilla and bleach, clinging like a secret to the walls. You knock, and the door swings open almost instantly—Sunoo stands there, blonde hair soft and damp, a cardigan draped over his shoulders. His smile is warm, disarming, the kind that makes you forget the chill creeping up your spine. "Come in," he says, stepping aside, and his eyes never leave you as you cross the threshold. Inside, everything is pristine—minimalist furniture, a single orchid on the counter, the quiet tick of a clock. But your gaze catches on a door at the end of the hall, closed, a sliver of darkness beneath it. He follows your look,…