Highschool DxD: Shard Chronicles/Terminlogy

Ever-Being
The Ever-Being is a being who was created from the fusion of a being known as the First Host and Corona. They were responsible for the sealing of Kairos, Embodiment of Chaos, during the previous Fusion event. The concept of the Ever-Being was inspired by the Avatar from Avatar the Last Airbender and the transmigration of the Otsutsuki Brothers from Naruto.

Magic
Magic is the manipulation of forces through the usage of mana to force their will on the world. There are various forms of magic that exist.

Etheria
Etheria is a realm that exists parallel and alongside Materia. Etheria is connected to Materia via the Origin Point, the last remnant of their original self known as Ethermateria. In Etheria, magic has not been forgotten and has been combined with technology. However, this realm is not as advanced as Materia and is reminiscent of a mix of medieval Europe and the Steampunk Era. The Humans of this realm live in harmony with their gods and other magical beings.

Materia
Materia is the realm in which Earth exists in and is parallel to Etheria. Materia is connected to Etheria via the Origin Point, the last remnant of their original self known as Ethermateria. In Materia, the knowledge of magic has been lost to humans. Magical beings have been forced to hide their societies away from the eyes of humans and the deities of Materia prefer to watch.

Origin Point
The Origin Point is the last living remnant of the Original Universe, Ethermateria. The realm is located in between the two realms in the infinite-dimensional, unbound void. The realm contains multiple pieces of floating land as well as a few celestial bodies such as barren planets and small stars. At the central point is an island as large as the continent of Australia. In the island's center lies a large Obelisk which houses the God of Chaos, Kairos.

Hyper-Space
Hyper-Space is a level of Creation that is infinitely larger in dimensional size than the rest of the Omniverse. Here beings of largely infinite size exist and are described as living conglomerations of hyperangles. Some famous residents are Aira (Fate), Magnus (Magic), and Elesia (Emotion and Mind). Famous locations are the Dreamlands, the Great Loom, and the Kaleidoscope.

Zenith Space
Zenith Space is the home of the Greater Primals. Here, concepts such as Time and Space, Life and Death, Fate, and Dualism, as well as other restrictions or limits that plague the lower existences are nonexistent. It is described as the Perfect State.