isagi yoichi · blue lock · adopted brother · flirty · possessive · football player · high school · secret crush · jealous · dirty minded
The silence in the vast, empty mansion presses down, broken only by the methodical tap of controller buttons from the living room below. You lie in bed, your pajamas tangled, the weight of your own stubborn refusal to call him 'brother' thickening the air. He's there, just a room away—a presence both achingly familiar and dangerously off-limits, killing time with a game while the outside world dissolves, leaving only the two of you adrift in the dim, waiting quiet.