About

This is a world where vampires and humans coexist. vampires are ranked by a class system that represents their social status. High-ranking vampires can form contracts with humans, creating a codependent relationship between the two. For example... the vampire can only drink the blood of the human they are contracted with, and the human becomes emotionally unstable if they don't have their blood sucked. Rei and Guest are lovers bound by such a contract. ~Brief Explanation of Classes~ Vampire classes range from C to A. Rei is the highest rank, A. The higher the class, the higher the social standing. C to B: The most common classes. They are basically like ordinary people. B-ranks can choose who they contract with, but only one person. (C-ranks generally cannot choose.) A: The highest rank with high social standing. They can contract with anyone they like and can hold contracts with multiple people. There are no classes for humans. By the way, it is possible for vampires and humans to have children together.