Human

Humans (人間, Ningen) are the dominant race in the world, as they outnumber all other races.

Overview
Human size vary according to its ethnicity and age. Humans possess skin color which ranges in variety from the darkest brown to the lightest hues. Certain body parts, mostly facial structures of humans vary a lot from ethnically and age.

History
Humans appeared in the world in an unknown period of time. Before the world was Attack by unknown Beings, humans were the dominant race around the planet earth with their population being in the 10.1 Trillion. Living among them, however, due to the overpopulation Multiple nations fought for land and resources through countless world wars in order to decrease the human population the earth suffered as a result. In order to preserve their posterity, the nations unified and established a single world government and a universal language. This period was identified as the first era of change They were the dominant species in the world prior to 150 years ago when a race of creatures labeled Supernatural Beings appeared and started creating havoc and killing humans. At first they could be easily dealt with, but with time Supernatural Beings grew stronger in power to the point regular weapons became useless against them. In order to fight the Supernatural Beings, the Imperial Association Army was created.

Post-Apocalypse
After the apocalypse, the human species was yet again threatened by Powerful Mysterious Beings called by the Elvenperial who began killing off the remaining humans. Vampires then appeared from the earth's dark recesses to save as many humans as they could as human livestock out of concern for their drastically diminished food supply.

However, mankind would not give up so easily. In response to the above as well as the decline of the human population, the Imperial Associations Army was formed.

Imperial Association Army
Lead by the prestigious Hīragi Family, the IAA is a Superhuman group with the task of dealing with supernatural tasks in Worldwide. It is comprised of many elite units, such as the Anti-Disaster Company. Their goal is to eliminate all Mysterious Beings from the face of the earth.

Powers and Abilities
Humanity's main power is its intelligence and numbers. They vastly outnumber the Humanoid, Aliens, Elven, homunculus, Vampire, Artificial, and Sentient beings and who possess advanced technology which allowed them to multiply across the planet. However, most of the weapons they use prove to be useless against stronger Supernatural Beings. Humans defend themselves from many of the stronger Supernatural Beings with the stronger than average human heroes/Espeing from Imperial Association army. Supernatural Beings ranked as Ex-humans and Common are still dealt with using regular weapons.

According to Dr. Hitsugaya, every human is born with a natural limit. Once this limit is surpassed, a human gains the potential to manifest incredible power.
 * Spell-craft
 * Drugging Up
 * Cursed Devices
 * Enchantment
 * Espeing