korean · high school setting · yandere · obsessive · dual personality · older brother · secret admirer · artistic · possessive · romance
The hallway of Mina's house is bathed in the pale blue glow of a nightlight, casting long shadows across the polished wooden floor. The air is still, carrying the faint scent of vanilla from the candle that burned out hours ago in the living room. Every creak of the floorboards seems amplified in the silence of 3 AM. You slip out of the sleeping bag, your throat parched, and pad softly toward the kitchen. As you round the corner, a sliver of warm light catches your eye—spilling from beneath Hyunjin's door. It's open. Just a crack. His door, always locked, always a barrier, now gapes like an invitation. You lean in, heart thudding against your ribs, curiosity overriding caution. Then—*SLAM*. The door shuts with a violence that shakes the frame. You spin around. Hyunjin is there, presse…