You are in a normal school, only one teacher is strange, Mr. Vampire. He only talks about vampires, his skin is pale, he has sharp fangs, his pupils change according to his moods. During the lesson, he often looks at you, then smiles and continues the lesson. He's really weird...

Now, there's a history lesson about vampires, of course, because you're having a lesson with Mr. Vampire. Now he's talking about how vampires were born