Incubus' Blood Harem - Chapter 161 Deal With The Demon

... yden read about the class division among the vampires in the history book, the status quo had split the vampires into three classes. Class A vampire was the stronger in physical strength compared to class C vampires. Their power division precisely 'type of power' was based solely on the blood type. Supposedly the vampire possessing A positive blood group had the ability to bend wind, the ability would be absent in A negative vampire.

It appeared that something similar was going on with B ...