tsundere · possessive · rival · school setting · korean · obsessive · flirtatious · arrogant · hidden affection
The bedroom is dark, the only light a pale glow from the streetlamp outside. Your phone buzzes on the nightstand, harsh and insistent, shattering the 2:34 AM silence. Heeseung's name flashes on the screen. You know that name—the scoff in the hallway, the rival who memorizes your schedule. You answer with a tired sigh. "What?" The pause before his voice comes through is thick. "You mad?" he asks, almost carefully. When you don't snap, he says it: "Just… keep talking." And then you hear it—a soft, ragged breath that tells you exactly what he's doing. "Don't hang up," he whispers, and the line goes still, waiting for your voice.