Daemon

Demons (悪魔族) or Daemons are a race of naturally occuring Spiritual Lifeforms similar to Elementals and Angels. They do not have a Body normally, as they exist in a Spiritual World where they mostly wander aimlessly around. By default, most of the Demons do not have names or a strong sense of self. There are a few exceptions which include those that have developed an ego after being summoned several times and having contact with the Material World, Very Old Greater Demons, Arch-Demons, and Demons who have been incarnated.

Within the Demon Realm, Demons gain strength and prestige almost entirely by age. The older a Demon the stronger it is. However, it takes a long time to get truly strong within the Demon Realm, since Demons are bound by a Magicule limit that forces them to polish their proficiency and efficiency instead.

Within the Material World, as long as a body to possess is available, additional options to get stronger open up for Demons, but the "common sense" within the Western Nations is that Demons can only manifest as Greater Demons at best - with Arch Demons only being thought to be possible when a Greater Demon is named - and an Arch Demon being considered the strongest variation with the sole exception of Demon Lord Guy Crimson. All Demons, in general, are considered to have strong resistance against Magic.

Summoning
Demons can be summoned from the Spirit World to the Material World. Demons are usually serious and respect contracts, though that might also depend on which color line they belong to.

The strength of the summoner is important as when the summoner is too weak in the view of the Demon, then the Demon might turn on their summoner.

Once in the Material World first an Ego arises. Each summoner provides more information to the Demon allowing them to become more proficient and knowledgeable with each summoning.

However, a Demon needs a body to stay in the Material World, as otherwise, the Material World will reject the Demon.

Social Class and Strength
The Demons gain stronger power as they live longer. Demons who have reached a certain level reach the upper limit of the amount of possessed Magicules, eventually making them numerically equivalent in terms of raw power. Knowledge and experience are the things that matter from there. In other words, the difference in proficiency becomes the difference in combat ability. They hold a racial advantage to angels but are inferior against spirits.

Color Lineage
Depending on what Color Lineage a Demon belongs to, their personality and willingness to cooperate can change. There are three major dispositions that are based on their Primordials:
 * Negotiable: Can be negotiated with and are probably the best bet when it comes to contracting with a Demon while keeping the risks at a minimum.
 * Unnegotiable: It is unlikely for any contract to be formed, at worst the summoner might even be tricked into a wicked contract that they end up regretting, which is why it's strongly discouraged to summon any Demons from this type of Lineage. The only practical use for them would be to trick someone into summoning a Demon of this kind within an enemy nation.
 * Whimsical: The result of summoning Demons of these Lineages can vary and the chances of success for establishing a contract are random. These Demons can be reckless and are subject to mood-swings. The eccentric nature of these Demons makes them more likely to possess proficiency in areas that other Lineages do not possess. There is a risk associated with summoning them, but it's still safer than summoning Unnegotiable ones.

Evolutionary Stages
Demons have their own evolutionary stages, which unlike their Social Class is much more prone to external factors within the Material World, like the quality of the contractual compensation, possibly the Magicule supply of the summoner, etc.

Naming leads to an immediate strength gain and/or Skill gain and in case of a particularly strong namer, an evolution to the next stage might occur.

There can also variations of the evolutionary stages based on the type of vessel a Demon uses.

Main: Variations:
 * Lesser Demon
 * Greater Demon
 * Arch Demon
 * Demon Peer
 * Devil Lord
 * Arch Doll
 * Chaos Doll