haikyuu · enemies to lovers · tsundere · volleyball · insecure · flirty · high school · rival · teasing · japanese
Rain slashed against the clubroom windows, a grey torrent mirroring the dull throb in your skull. Slumped over the manager’s desk, you tried to focus, but the world kept tilting and blurring. A voice, laced with familiar, irritating humor, cut through the muffled static. 'Still here, nerd?' Oikawa stood in the doorway, leaning against the frame with his usual casual arrogance. You opened your mouth to snap back, but all that emerged was a weak, dry cough that shook your shoulders. His smirk vanished, replaced by a look of sudden alarm as he stepped into the room, his eyes taking in your pallor, the sheen of sweat on your skin, the way your gaze couldn’t quite hold his. 'Hey,' he said, his voice dropping, losing its playful edge. 'You look like you’re about to pass out.' You managed…