Daemon

The Daemons (, Dēmon) are mysterious, subterranean beings in the Extermination series, descended from ancient Demons and Devils.

Cambions
Cambions (, Kanbion) is a term used for human-daemon hybrids in the Extermination series. Currently, there are two known types of cambions: The first are children of humans and daemons, the most notably being the Pumaiyaton family of half-Daemons; and the second are people who have gone through cambionization (半鬼化, Hanki-ka), the process in which people transform into daemons, caused by the disease Daemosis, due to their synchronization being too low with their inhabited daemon.

Vampyres
The Vampyres (, Vanpaia) are the kin of Daemons, descending from the same Demons and Devils as them, the most notable being the Vampyre God Nosferatu and his progeny.

Homeland
The Daemons live in the Underground. The Cocytus, Enosichthon and Jupyter Factions make up 70% of the forces of the Underground. The other 30% is comprised of smaller factions and other independent communities that exist outside of the factions.

Daemons Lords
A Daemon Lord (魔王, Maō) is the highest rank of a Daemon, comparable to First-Sphere Cherubs, and are saidto be capable of controlling the laws of nature and parts of human biology such as ice (Orcus), lightning (Thor), gravity (Garo), libido (Eros), light and darkness (Michella), fire (Surtr) and water (Poseidon).

Three Great Daemons
The Three Great Daemons (三大魔王, Three Great Demon Lords) is the title bestowed upon the three greatest daemons currently in the Underground, only below the Yahweh-Daemon itself.

Templar Order
The Templar Order (, 72-ri no Shinsei Maō, literally "72 Nova Demon Lords") is a term that refers to a generation of seventy-two Daemons, that have appeared in the past century, and have caused major change in both the Underground and even the Human world. The majority of them also participated in the Great War. Some known members of the Order include: the Three Great Daemons, Eros, Thor, Lucyfer, Surtr, the Four Great Daemon Generals, Taribatum, Býleistr, Galatea's great-grandmother; as well as many others.

Four Great Daemons Generals
The Four Great Daemon Generals (, Yondaikishou) are a group of four daemons who like the Three Great Daemons, Lucyfer and Surtr fought on the frontlines of the Great War gaining several accomplishments and guarded the four corners of the Undergound (north, east, south, west). All of them lead their own armies and can control powers equivalent to the Wu Xing (water, wood, fire, iron).
 * Northern Daemon, Boreas Ziminiar (ボレアース, Boreāsu)
 * Eastern Daemon, Eurus Amaymon (エウロス, Eurosu)
 * Southern Daemon, Notus Gaap (ノトス, Notosu)
 * Western Daemon, Zephyr Corson (ゼファー, Zefā)

Seven Deadly Sins
The Seven Deadly Sins (, Nanatsu no Taizai) are a group of seven ancient Daemon Lords, in which each are referred to as one of the Sins: Lust, Gluttony, Greed, Sloth, Wrath, Envy and Pride.

Trivia

 * The names of the Daemons are taken from various sources such as the Lesser Key of Solomon (more specifically the Ars Goetia), Christianity, and various "pagan" religions such as Norse and Greek mythologies.
 * The title of the Templar Order is a reference to the Worst Generation, or Eleven Supernovas, from the manga series One Piece, as well as the Knights Templar.