kageyama tobio, a tall and handsome guy... who was an high schooler... lived alone in a small house near the school also if he he wasn't always at home because he spent most of his time playing volleyball or simply at school or with his friends...

one day though, on a cold day of winter, on his way back home... kageyama saw a boy, maybe around his age... who was sitting on the ground, looking like he was asleep. kageyama got curious and so approached him... but over time he will find out that the boy, whose name he still didn't know, was a half-vampire...