strict teacher · secret crush · bl · school setting · stern · hidden affection · forbidden romance · science teacher · cold exterior · vulnerable
The science classroom hums with fluorescent light, the faint smell of chalk and stale air hanging heavy. Desks are cluttered with notebooks and half-hidden snacks. Heeseung stands at the front, crisp shirt sleeves rolled up, his gaze cutting through the room like a blade. He stops mid-sentence, eyes narrowing at you. The silence stretches, sharp and expectant. His voice drops low, deliberate. "Mr. Kim, turn your book around. Now." The class holds its breath, waiting for your move.