Devil

The Devil Race (デビル系他種族), known simply as just "Devils", are a humanoid liminal race that sports tanned skin, horns, black sclera, bat-like wings, and tails that end in spade-like points. As a race, Devils are highly variable with such things as wing size, wing strength, horn size, horn count, tail shape, and even possibly physiological body type.

Culture
Mischievous by nature, Devils seem to find the suffering and frustration of others to be hilarious and will actively attempt to cause drama or trouble for their own entertainment.

Physiological Attributes

 * A devil's horn shape is inherited, as well as the number of said horns. Normally, Devils possess one or two horns, but there have been individuals who have four horns.
 * However, Devils often get their horns become smaller via surgical means, as the horns can become problematic and interfering with daily life.
 * Devils are among the few species that are said to employ magic, with some skilled in psychic abilities such as hypnosis, which is how Devils typically sow discord, though this form of meddling is in conflict with the restriction of liminals harming humans.
 * A Devil's ears are capable of direction-focused hearing and are employed mainly for the purposes of extremely effective eavesdropping to make their mayhem more precise.
 * It is currently unknown for what purpose Devils use their tails for.
 * Because a fully-grown Devil's body stops developing at a certain point, it is common to find out Devils are much older than what their bodies look like.

Lesser Devils
Lesser Devils (レッサーデビル) are devils that have the bodies of humans in their childhood. Lesser Devils have small wings and bodies that are comparable with children, even though Lesser Devils can be fully grown in actuality. Lesser Devils usually use their petite bodies to get away with affording things at children admissions rates.

Greater Devils
Greater Devils (グレーターデビル) are devils that have the bodies of humans in their late teens. Despite the name, Greater Devils are not matured Lesser Devils, but rather their own Devil class. They enjoy dressing in human fashion and venturing into the city at night to play rather malicious pranks.

However, because their actual age is much greater than their apparent age, much like Lesser Devils, they can be out of touch with fashion trends popular among younger people.

Elder Devils
Elder Devils (エルダーデビル) are devils that have the bodies of humans in their adulthood. Appearing even older than Greater Devils, they are the voluptuous/highest class of Devil, and boasts the largest average wingspan.

Though it's unclear if it's because of their older apparent age, Elder Devils have the longest lifespans of all Devil species, and it's not uncommon for members to live several centuries. It might have to do with the their extremely long lifespans, but Elder Devils are quite calm and composed, and are beyond playing pranks.

Members

 * Lilith (Lesser Devil)
 * Lethe (Greater Devil)
 * Saki (Elder Devil)
 * Elda (Elder Devil)
 * Sitri (Lesser Devil)

Trivia

 * Devils are the first liminal species that does not seem to have a standard race as a default, though Lesser Devils can be considered as the "default" Devil race.
 * Life energy is often considered the most potent form of energy, with a being's own soul/spirit being the apex of the most ideal energies to absorb; however, only the most malicious entities will endeavour to absorb a being's soul for their own sustenance. Those that do, however, will often either absorb copious amounts of life energy from the host over an extended period of time until the soul/spirit beneath is exposed for them to absorb or they will induce the host into an increasing sexual state; during which the being's body will be fooled into emitting steadily increasing levels of life energy in preparation for mating with the entity. Both male and female hosts will continue emitting life energy up to orgasm; at which point their life energy output explodes exponentially during orgasm and their soul is momentarily exposed for absorption. The convulsing and clenching of the host's physical body during orgasm additionally disrupts or loosens any anchors the soul would have to the body, rendering it vulnerable for the entity to absorb, as such the entity will strive to incite the host into as strong an orgasm as possible to obliterate their soul's anchors and prolong the host's orgasm out for as long as possible to increase the amount of time the entity can access the soul (some entities will incite their hosts into multiple orgasms (particularly if the host is female due to their affinity for multiple orgasms, which get stronger the more they have) to achieve this effect). More often than not, the feeling of the entity absorbing their soul while they are orgasming will cause the host to erupt into what is dubbed a "Death Orgasm"; an incredibly strong and prolonged orgasm that will render the host completely vulnerable and make their soul voluntarily available for absorption. With the soul exposed the entity will then extract the soul out of the host's body either by coercing or drawing it out via their mouth, suckle the soul via the breasts (if female)(note that while they do need to be in a heightened sexual state, the host does not need to be orgasming for their soul to be drawn out via these orifices) or by inserting an appendage such as a tentacle into the being's mouth, vagina or anus and siphoning the soul through the appendage. Interestingly, despite the process being fatal, all methods of extraction are considered pleasurable by the host on various levels and as such the host will find themselves desiring for the extraction to continue for as long as possible. Due to this, unless they are of strong will, the host will need the assistance of another individual to save them from losing their soul to the entity.
 * Perhaps the most well-known method of "soul extraction" as depicted in human culture is when the entity extracts the soul via the penis. The host's penis can be manipulated by malicious entities into ejaculating large portions of the host's life energy with the host's semen (which occurs naturally in small doses) but it can also be further manipulated into voluntarily performing Death Orgasms, which will cause the host's penis to express their soul via their urethra in prolonged ejaculations. The entity can take advantage of this event by having the orgasming penis placed within or penetrated by a siphoning tentacle, or held within the entity's mouth (or any similar orifice used for feeding) via fellatio, to catch and swallow the soul as it is expressed. The entity can also feed by coercing the host into legitimately mating with them so that, when the host's penis ejaculates their soul, the soul is expressed directly inside the entity's body and instantly consumed. While purportedly one of the greatest physical pleasures a host can experience, the loss of their soul/spirit instantly kills the host or otherwise renders them "undead".
 * While seemingly counterproductive to the interest of the host's self preservation, the "Death Orgasm" is theorized to originally be a means for a suddenly dying body to quickly release the soul before the body shuts down due to shock and the soul becomes trapped within dead flesh.