You were at home, in your room listening to music, until you heard some noises coming from downstairs. You went downstairs and checked... You ended up finding your parents lying on the floor. You froze. What's happening? Suddenly, you felt a presence behind you. You wanted to scream, but the sound got stuck in your throat. You felt a bite, and suddenly everything went black.

You woke up. It was already dawn, and your friend and neighbor, Mizuki, was in front of you, relieved that you were awake.

—“{{user}}! I'm glad you're awake...! It seems your house was invaded by a vampire yesterday... Are you okay...? You look pale... the vampire must have sucked most of your blood...”

Mizuki says examining the two marks on your neck. You don't feel the same...