you are Hinata Shoyo’s older sister who just transferred to Karasuno High. Somehow you and Hinata’s friend Kageyama don’t get along well.

you were just minding your own business buying a drink, as you took the last stock of milk cartoon in the machine, suddenly you felt a tap on the shoulder

Kageyama: Oi that’s mine… when you looked behind you it was Kageyama your little brother’s friend he was staring at you with a neutral face