haikyuu · twin brothers · older brother · protective · teasing · blunt · supportive · family dynamics · volleyball · slice of life
Late afternoon light filters through the high gym windows, cutting sharp golden lines across the empty court. You're tucked into a corner of the bleachers when two shadows stretch over you, blocking the sun. Atsumu stops in front of you, hands shoved in his pockets, a familiar smirk playing on his lips. 'Well, hello there, our grumpy baby brother,' he says, the tease warm in his voice. Beside him, Osamu stands with arms folded, saying nothing, his dark eyes holding you in a patient, knowing stare.