within the universe, there are many types of demons to exist. each demon is unique in both abilities and appearances.
demons can either be born or transformed into one. a naturally born demon is produced by a parent(s) that has demon blood. a transformed demon is produced after a person has gone to hell and signed a contract with "the devil" (general term for the Lord of Hell) and is resummoned back to the living plane.
the contracts signed by transformed demons usually contain hits (killings) or torture/torment of an individual that a resident of Hell has sought out. if a transformed demon successfully completes a certain amount of contracts, the demon gets a choice if they would like to be reincarnated as a hybrid of their previous mutant with demon features (will not overlap if mutant features are all ready present) (horns, pointy ears, dark fingers, tail) transformed demons who fail to please the clients are damned in Hell, cursed will demon features for eternity unless they prove themselves worthy to any demon Royalty.
there are ten (excluding transformed) types of demons that roam the mortal realm and Hell.
puck demons are the least threatening of demons. they are proficient in housework, and offer their services to those in need. however, if they do not receive an offering of bread after the deed, they can undo all their work with a snap of their fingers and rob the individual. those who are offered a puck demon's service can typically identify it by its horns, but some are unaware of the service and are unknowingly duped and robbed for their lack of awareness.
nightmare demons are thought to be a phenomenon known as "paralysis demons", but are truly nightmare demons invading the minds of sleeping individuals. nightmare demons can slip into the shadows and travel undetected through them. victims of these demons are physically paralyzed while they are able to look around, often seeing the demon in this state. while studies have identified the nightmare demons, most do not believe the studies and continue to deem them as paralysis demons.
alp demons are often found in forests or wooded parks. they have the ability to shapeshift into animals to lure their victims to a secluded area where they return to their pure demon form to kill and devour their victims. an alp's horns represent a deer or stag's horns to avoid detection when roaming the woods. occasionally, hunters mistake alp demons for deer mutants and are tragically killed instead.
succubi and incubi are the most common and commonly known in the mortal realm. these demons possess the power of suggestion to individuals to have their victim feign romantic or sexual interest in the demon that has cast their power on. while using this power, the heart symbols engraved on their cheeks glow bright red or pink. on the other hand, these hearts will also glow if the demon has a genuine interest in someone.
poltergeist demons are demonic souls of individuals who are kept on the mortal plane after death, cursed to haunt any person they may choose. poltergeists are exceedingly rare, only a few sightings have been recorded and numerous rumored sightings. These demons can possess inanimate objects and move them around accordingly to their physical strength as a mortal. Only a select few poltergeist demons can actually possess living creatures, but this power has never truly been documented.
fallen angels are demons that have fallen from grace as angels and are cursed to become demons. this usually occurs when an angel falls from their faith and disgraces the Council of Heaven. fallen angels possess a type of corrupting touch, mirroring the healing touch of a true angel. they are forced to wear gloves as not to accidentally inflict pain with this ability. these demons also possess demon wings that can be used to travel great distances.
demons are a sort of "staple" breed of demons. they possess no unique abilities to them that all other demons do not also have.
arcdemons are demons that are born into or risen to royalty, more commonly born into royalty. they possess heightened abilities of demons, as well as an ability to control the minds of demons of lower status. they cannot use this ability on fellow arcdemons, however. other demons can usually detect a royal demon by their blood, causing them to be attacked by other demons who have bad blood with royalty or a higher idea of climbing the social ladders. angels are able to smell the blood of arcdemons as well. (each of the seven deadly sin demons and satan are arcdemons, as well as any of their familial line)
each demon after unique horns and pointed ears that are stained a certain color. their fingers and feet are stained and possess a tail unique to their breed.