Owari no Seraph Headcanons
-Vampires click their top fangs against their bottom ones when they’re nervous. It’s usually super quiet and humans typically can’t hear them, but other vampires can
-They make this sort of rattling hiss when threatened or angry, kinda like a rattlesnake mixed with a cat. If they’re hurt when they’re hissing, they’ll shriek
-Their bottom fangs are spurs that hook into the flesh of their victem, anchoring them in and making moving difficult. Because venom production starts right before they bite, these spurs usually have a thin coating on them that numbs them to the victem, unless the bite was intentionally done without venom, which SERIOUSLY hurts and is usually something done in fighting instead of hunting because a screaming, thrashing human is difficult to drink from even with super strength
-Their claws (we sometimes see Ferid and Krul with their claws out when they’re fighting or angry, you can catch them if you watch close enough) slide out over their ordinary nails and are tough enough to dig into rock without breaking. Some vampires like to paint them in their free time (fucking Ferid with his purple-ass claws is evidence for this headcanon)
-They’re somewhat desensitized to pain. Minor injuries don’t bother them at all, and major injuries are more of a shock thing than anything else. This is because their healing abilities mean they don’t need to be careful with their injuries, as long-term healing isn’t really a thing. Therefore, the pain reflex has been mostly deactivated as feeling pain on a human level would be more of a crux than anything
-They’re mostly visual and sound-based predators, and hunt like big cats (based off their pouncing reflex). This means that they can do that thing where they can hold their head perfectly still even when the rest of their body is moving. And yes, they probably do the butt-wiggling
-Based off their ability to apparently run on the fucking walls and ceilings if they so wished (like in the first opening), their ankles and wrists are probably more flexible than ours and can pivot at angles that would make us scream to maximize their climbing ability (like that one squirrel{?}/lemur {idk I’m not that good at mammals} that can twist its back feet around to climb down trees). They probably also have longer hooked claws on their feet to hang from things so they can grab people preying-mantis style.
-Judging from how most of them seem to have really pale colouring, all of them have a strong adversion to sun (for obvious reasons lmao), the ability to climb on stone/hang from things, and a strong preference for the underground, I’m going to take a gander and say that they’re probably naturally cave dwellers
-They’re naturally solitary predators, and only usually form strong social bonds with people left over from when they are human (even if both are turned, the bond still stays)/the affection between sires and their offspring. This is why they aren’t very emotional; they don’t need it to survive and communicate, like we do. This lone hunter mentality also contributes to the tendancy to think over feeling, and is also why they don’t really care to learn things (because they can usually just figure it out by themselves). Eventually, some vampire went ‘hey, I’m strong by myself, what if instead of competing with other vampires we can team up and pool our reasorces instead of fighting over territory and prey’, and that’s how the kingdoms were formed. Vampires have since learned how to communicate with others and formed their own communication cues, but this is also where the pride and arrogance and splendor came in, because they’re essentially always trying to one-up the other vampires around them, so they eventually just started hoarding shit like dragons to prove themselves to the over vampires (a remnant of their territoriality)
-Their need to consume blood is partially a dietary need, partially magical. The blood provides the nutrients they need to get by, but it’s also a part of the curse that threw them into vampirism: essentially, you cheated death by drinking the life force of other humans (blood), but now that you’re technically supposed to be dead you’re running on borrowed time and *need* to keep stealing the life force of others to lengthen your own time. Because you weren’t supposed to cheat death, if you run out of time (starve/die), you get turned into a demon as punishment. (At least, that’s the basics of it). It takes three days to work the blood completely through the system, (as I headcanon it gets absorbed entirely, since they have only one specific food source), but they’ll still crave or enjoy drinking blood in between neccessary feeding times because it tastes good (like eating your favorite snack: you *can* have it later, but why do so when you can have it *now*) and it revitalizes their lives, giving them a sort of living high
-Vampires have the ability to echolocate if they are sunblinded (as their eyes are the most sensative). They’ll make these sort of throaty, high-frequency clicking noises that allows them to navigate them to a safe place until they are healed again.
-Fledgeling vampires are notoriously bad at learning to control their venom, and their progenitor usually gives them a few tips after they’ve drank from them for the first time because they have a higher resistance to vampire venom than humans. Fledgelings are also really bad at learning how to control their jumps and landings, so some of their first lessons are more focused on helping them learn to walk and jump again with their fancy joints and catlike reflexes than anything cool
-Then the next lessons are how to be self-sufficiant, like how to mend clothes and items and shit because no vampire wants to clean up after another one unless they’re their progenitor or special companion (and most times, not even then)
“When am I gonna learn how to do cool vampire things” “Shut up I’m trying to teach you how to fix your shit now so I don’t have to later”
-Most teaching is done by the progenitor because the most of the other vampires just don’t have the empathy or patience to care for a clumsy newborn who can’t seem to talk without biting themselves
-Sometimes vampires will start dripping venom if they’re anticipating a bite (like salivating) and they have to spit the excess venom out because it tastes bitter. The reason why they drip venom in the first place is to try to coat the rest of their teeth and numb their bite as much as possible so the human doesn’t struggle, but if the biting doesn’t actually happen it just accumulates and then their mouthes taste bad
-They have a rough patch on their tongue that puts pressure on the bite when they’re drinking, helping to increase the blood flow more than just the blood thinner in their venom. They usually press down, gather a mouthful of blood, pull back as they swallow, then press back down again to collect more, which must feel really frickin weird for the bite victem
-Their abilities to hiss, scream, and click makes being multilingual easy, which is why they can communicate with vampires across the world with little problem
Old-time vampire duels were usually fought with claws and dry-biting at necks and shoulders until one of them was killed or forced into submission
-The younger vampires are the most terrifying because they remember less of their humanity, making them more ‘purely’ vampire
Baring their fangs when fighting is an automatic reflex. Merely flashing the fangs is just aggression, whereas gaping the mouth open and baring all four fangs hints that they’re going for the kill
Because of their blood drinking and pouncing-attack style hunting, vampires have a greater range of movement in their necks that allow to look at things from many different angles and keep the movement without strain, like owls
-This is more of an observation than a headcanon, but all of the Michaela trait carriers seem to have a blood type of O, which also appears to be a delicacy in the vampire world
