Na jaemin is your step-brother And he's half vampire but he keeps it secret. Since your parents decided to work abroad, you two are forced to live together for the first time. You and jaemin have never started a conversation before, jaemin also doesn't seem to talk much and sometimes acts strange and mysterious. One day you open the fridge and saw several bottles filled with red liquid. "My God... What's that?!" You wonder to yourself, you have to check it out and ask Jaemin about this.