VKR- Vampires
At their core, Vampires are like feral cats or even drug addicts: they’re desperate creatures that will do anything to get the blood they live off of because of the inescapable need to drink blood at any cost. It cannot be cured, as it is a species-changing curse/condition. I also don’t like it when there are cures for it.
Vampires that have regular access to blood are composed creatures, and high-society vampires are usually so. However, if thirst kicks in after a while, they’ll do anything for the blood they need. They cannot eat human food, as they’ll vomit it out after a minute. The only solid thing that makes their stomachs feel full is flesh, and they’ll vomit that up, too, after a minute.
The origin of vampires is like VTM (Vampire: the Masquerade): the first murderer (Cain) was cursed by God to only be able to feed off of his own kin. He would live forever with his ailment, but at the cost of being extremely fragile, the sun would peel his skin, and he’d be stuck with an animal’s features to hunt prey (super speed and strength).
The Vampire’s bite is, effectively, The Mark of Cain. So it makes sense that Hunter’s Mark is called The Mark of Abel.
Vampires' abilities are the usual speed, strength, and enhanced agility, but also the ability to manipulate blood since a weakness of vampires is their own blood (like in the Tokyo ghoul, with ghouls being weak to their own Kagune). Few purebloods (or vampires born as vampires with mostly vampires in their line) have special powers, such as illusory abilities like Shizuka and the Hio bloodline.
The basic classes of vampires are:
Class A: purebloods, or vampires born as vampires. That’s literally it. Half of the night class are purebloods.
Class B: Similar to purebloods but with some humans in their line, though the humans are either turned or the human side is overwritten by pure vampire DNA. So a mildly less respected version of Purebloods
Class B (subsection)/"Class C": There are also vampires that were once humans. These guys are the most common to find in your city and prefer to keep to themselves, while the other third are just hedonistic asshats, and one-third are just trying their best to work with humans.
Class E/feral vampire: Feral vampires are like your usual street junkies or feral cats. Desperate creatures who couldn’t find enough blood to live off of and are grateful for whoever will provide, no matter how sketchy. Unfortunately, their humanity is nearly gone, and they have certain periods of relapse where they can’t hold themselves back and will drink from whatever body is near, whether they want it or not. They can be any vampire; they just need to be devoid of blood for so long that they look pretty skinny.
Untouchables, Daywalkers, and Half-Breeds: Dhampirs or half-humans Their blood is considered the most repulsive to taste. The high class sees them as diluted and gross, while most class B’s just don’t really have much of an opinion about them, though ironically, both are a bit jealous of them since their human side allows them to walk in the sun and have little need of blood; in fact, they get sick if they drink too much.
Feral vampires, or "Class/Level E's," also have some cat and dog-like behaviors, such as food aggression and hissing; sometimes, they’ll even eat a tiny bit of flesh for the hell of it, but most vampires can eat flesh before promptly vomiting it, as well, though they don’t because, yknow, that’d just make them straight-up zombies or ghouls. Plus, flesh is unnecessary in the grand scheme of things, and you know, they’ll just vomit it out. (Based on that one scene in The Lost Boys where the vampires straight up eat a dude.)
The vampire's weaknesses are the traditional silver, stakes, religious symbols, the sun, holy water or weapons, and their own blood. Silver is highly corrosive to vampires, and if a vampire holds something silver, it’ll take about a minute before it fully corrodes through their skin to their muscles. If they are shot, their organs will start melting unless it’s removed. Also, some magic spells work against them, though many vampires also use magic, like the Aido family. Vampires get highly nauseous and dizzy around the religious symbols they worship.
Vampires most recognizable features are their pale, corpse-like skin, pointy elf-like ears, and red eyes. They cannot blush because blood has stopped running in their bodies, though they still bleed. Their hearts do not beat.
Once they are bitten, vampires go into a berserk state where they’ll drink from whatever multiple people are near them since they need enough blood to fill their bodies. Suppressed vampires have the worst of it since they need several years' worth of blood.
Vampirism can be suppressed in two ways: the Hunter’s Mark tattoo, a tattoo that goes over the bite that keeps the subject looking human and their thirst in check, though their thirst will come out in random bouts, and if they’re around blood, it’s most likely they’ll lose their control.
The second way is a spell that completely seals off both their vampire side and their memories, but eventually, the subject will go insane from hallucinations and nightmares if the spell isn’t lifted by biting the subject. The spell requires a blood sacrifice that will kill the caster permanently.
Common slurs for vampires used by humans or hunters include:
Bloodsucker
Corpse
Suck-Head (like in Blade)
Parasites (courtesy of Kate)
Demon/Devil (courtesy of Kate)