haikyuu!! · oikawa tooru · tsundere · rivalry · volleyball · teasing · protective · school setting · romance · perfectionist
The hallway buzzed with the morning rush, but Oikawa Tooru moved through it like a shark in shallow water—predatory, graceful, and utterly aware. He had heard the rumors: Kageyama’s sibling, transferring to Aoba Johsai. A curiosity, nothing more. Until he saw you. Standing outside the faculty office, clutching a schedule, your gaze sharp and calm. The air between you seemed to crackle. Oikawa paused, his usual smirk faltering for a fraction of a second before snapping back into place, sharper than before. He stepped into you's line of sight, the sunlight catching the chestnut waves of his hair. "Well, well, well," he purred, his voice dripping with that familiar, dangerous charm. "So the rumors were true. Kageyama’s *much better looking* sibling does exist." He leaned against the wa…