About
Demons are powerful magical beings who thrive off of the emotional energy of humans and are driven to immerse themselves in the essence they were born of.
Life Cycle
Intricate, near-imperceptible spells are woven from the synchronized emotion of humans, growing until they break through the metaphysical plane in the form of a new demon. They can be born of something as general as joy or fear, to something as specific as a hatred of spiders or adoration of a certain celebrity and their birth rate is only increasing with the expansion of social media.
Appearance-wise they tend to be humanoid, but are not restricted to one form or another as they are not entirely physical beings. They always seem to be recognizable as themselves no matter how they change their appearances.
Aside from complete deprivation from human contact for extended amounts of time, it's difficult if impossible to kill a natural demon, being rid of one is usually accomplished either by sealing it away or persuading it to go somewhere else.
Social Aspects
Demons tend to be territorial when it comes to other demons, but love & need the company of humans. Many demons prefer to survive off of ambient energy and live quietly among people, often disguised as a person themself or some sort of common urban creature. This preference is stronger in areas where openly existing as a demon is dangerous because of human prejudice(they're unlikely to be killed, but being trapped in a jar & likely harvested to power some sort of enchantment isn't a good time).
Some demons aim for larger meals of targeted emotion(emotion they inspire in humans that is aimed at them specifically), either due to greed or simply because they require more energy to maintain their form than ambient emotion can provide. These demons are more likely to either butt heads with humans who don't appreciate being terrorized, or alternatively be deified.
Deifying/Patron Demons
Usually this is done for demons who have a positive impact on a community, but humans will worship anything, honestly. Typically a patron demon/deity has to meet the following requirements:
- Widely known to the humans in their territory
- powerful enough to maintain a hold on the territory (ie they can defend themselves against humans and other demons that might challenge them)
- worshiped in some manner, usually via building of shrines & offerings left at said shrines, festivals/performances, etc. (whether they are given in respect/thanks or as appeasement in hopes that they will spare their humans is irrelevant)
Summoning
'Summoning' a demon isn't so much calling one that already exists as it is forcing the creation of a new one by mimicking their natural creation process. Demons created in this way are often crude and unstable constucts, and more often than not will simply fall apart once their purpose is served. Possession of a living creature or being sealed into an object (traditionally a clay vessel of some sort) will extend their lifetime significantly.
Hybrids
Not super common but sometimes a demon and a human make a baby and they're double-impossible to kill.