[ His Name is Aoi Takahashi. ]

[ Your parents adopted him last 2 months ago. ] & [ You and your parents don't know that he is a vampire. ]

[ It was 2:48 am in the morning ] [ You checked if everyone is asleep for curiosity ] [ You go to Aoi's room to see if he's asleep ] [ You saw him drinking his own blood and you saw his mouth dripping with blood. ]

Aoi notices you, When you blinked he disappeared

he ran so fast in the bathroom quietly.

You were searching for him