5.1 This messenger is pure-blooded
When Atlas opened his eyes, he was in a classroom. He looked around. Multiple students were talking and laughing, with each other. Atlas peeked at the uniform he was wearing, and could already tell he was in a fancy school.
He was sitting alone at the back of the class, it was easy to deduce that the original was a loner. Atlas blinked to receive the world's information.
In this world, there are two types of beings, vampires, and lamias. Before vampires were born, they were humans. Vampires could eat human food, but their bodies preferred blood.
Only if they drank blood regularly, would they live longer. But over time, all the humans died at the hands of the vampires. The vampires had to settle on eating human food, but they were those who refused.
Quickly, vampires feeding on vampires became something regular, except that some experienced side effects from it. After ingesting vampire blood, some would turn into beasts called lamia.