Vampires

Vampires are human-like creatures who suck the blood of humans. They are a focal aspect of Call of the Night.

Description
Vampires are preternatural beings who like to suck the blood of humans during the night.

They take a human form, however they're noted to all be exceptionally beautiful. They do not age as regular humans do, often looking youthful in appearance, and are also able to heal wounds that they have been afflicted with very rapidly, meaning that they're presumably immortal and thus immune both to death by old age and death by bodily harm. Due to the fact that most vampires have lived for a very long time, they often quickly forget their memories from when they were human.

Vampires have a reflexive and innate thirst for human blood, and if they're deprived of it for long enough they may begin to lose their sense of reason. However, blood doesn't necessarily always taste nice to vampires. Nazuna Nanakusa notes that it tastes the best when it's sucked from a human between the time they're beginning to fall asleep to the time they actually fall asleep, and the blood of people like Kou Yamori also tastes unusually good.

Not much is known about the actual history of vampires other than the fact that they seem to have existed unknown to humans for a very long time.

Weaknesses
Anko Uguisu has noted several weaknesses vampires have that can be used to kill them.
 * Human Memories: If a vampire is shown something that was important to them when they were a human, it has the potential to kill them.
 * Lack of Blood: It is unknown if vampires can actually die solely from not ingesting blood, but it can severely weaken them to the point at which they become almost delusional and lose their other senses.

Servants
Vampires are able to turn other humans into other vampires if two conditions are met: the vampire is able to drink the human's blood, and the human is in love with the vampire who intends to convert them. Vampires who are created this way are referred to as "servants", and often act as subordinates of vampire who converted them due to the fact that they are infatuated with them.

A vampire can have multiple servants. This amount has no known limit, but with some exceptions like Kiku Hoshimi, most vampires have around five or less.

Birth
Vampires can also be created as humans are if at least one of their parents is a vampire themselves. Vampires created this way don't seem to lose any of their additional vampiric abilities or aspects despite having human blood.

After being born, they will grow to physical adolescence within a very short amount of time, however their brains still require regular socialization and they do not hold any innate knowledge despite their rapid maturation.

Nazuna Nanakusa is the only known vampire to have been born this way.

Known Vampires

 * Nazuna Nanakusa
 * Kabura Honda
 * Hatsuka Suzushiro
 * Nico Hirata
 * Seri Kikiyou
 * Midori Kohakobe
 * Kiku Hoshimi
 * Akihito Akiyama
 * LoveGreen
 * Unnamed school teacher (†)
 * Haru Nanakusa (†)