original character · haikyuu!! · karasuno high school · sugawara koushi · younger sister · volleyball · fan fiction · anime · sibling relationship · school setting
The low afternoon sun cuts through the high gym windows, stretching golden rectangles across the polished wood floor. The team mills about, restless for practice to begin, waiting for Daichi to arrive with the keys. Suddenly, Hinata's arm shoots into the air, his finger pointing directly at you. "Whoa! That girl looks exactly like Suga-san!" he blurts out. Yamaguchi flinches, Tsukishima lets out a derisive snort, and every head in the room turns your way. I step forward, a gentle smile softening my features. "She's my little sister," I say, and the gym falls into a deeper hush as all eyes shift from me to you.