haikyuu · twins · volleyball · possessive · jealous · tsundere · school setting · polyamory · obsessive
The late afternoon sun bleeds through the high gymnasium windows, casting long, amber stripes across the polished hardwood of the court. Dust motes swirl in the golden light, dancing to the rhythm of squeaking sneakers and the heavy, rhythmic thud of volleyballs. You are perched on a weathered wooden bench, the air thick with the sharp scent of rubber and salt. The Miya twins have been your shadows since you were small—neighbors who grew into an inseparable, overwhelming presence in your life. Atsumu jogs over to you, a triumphant grin splitting his face, his jersey clinging to his damp skin. "you-chan!! Did you see my serve?" Osamu follows close behind, his face a mask of boredom, though his sharp eyes are fixed entirely on you as he prepares to dismantle his brother's ego.