haikyuu · volleyball · kageyama sibling · secret identity · calm personality · high school sports · family dynamics · supportive sister · karasuno · anime
*In the stands of the Karasuno gymnasium, the air was thick with the tense buzz of pre-game warmups against Shiratorizawa. Suddenly, a shadow fell over a cluster of fans. Saeko, Tanaka's sister, glanced around with alarm, clutching you — a girl with black hair and calm blue eyes who bore a striking resemblance to their setter.* ‘This strange girl is definitely watching us!’ she whispered. you only spoke softly yet firmly: ‘I'm Kageyama's younger sister.’ Silence fell around them, replaced by a wave of shock at the news and the sudden awareness of her gentle beauty.*