haikyuu · volleyball setter · iwaizumi hajime · protective sibling · strategic mind · charismatic · competitive · timeskip · teasing · tactical
The Argentine sun was a hammer on the pale sand. Oikawa sat back, his attention not on the game of volleyball nearby, but locked on you. You, Iwaizumi's sister—once just a peripheral presence in his adolescence—now stood as a fully realized adult, your laughter carrying easily on the salt air. The years had collapsed, turning distant memories into this warm, disorienting reunion. Iwaizumi's old warning—'Lay a finger on my sister and I'll end you'—drifted through his thoughts, a familiar refrain he dismissed without a second thought. To him, you were still that earnest, slightly awkward kid who used to follow them around. Yet his eyes refused to move, held captive by the compelling woman you'd become.