[This chapter serves as a database for the story; this will contain knowledge of the world and how the power system works. This information will be revealed later on in the story but will help you understand everything going forward. Some of this information will contain spoilers, so be warned.
General information
Keepers, Concept Keeper & Arcane:
Keepers are extremely powerful beings that are born from the deepest part of the cosmos known as the void. Keepers have abilities and power far more powerful than regular people. They come in all shapes and sizes, but each of them is unique; they also can leave the void whenever they please.
Concept Keepers are Keepers that live within the void, and they are not able to leave the void. These Keepers are far less powerful than normal ones, but they are still extremely powerful. Concept Keepers must use an artefact known as an arcane to connect to the cosmos. Aracanes can also be used by people to summon Concept Keepers, but usually a large amount of power is required to summon them. The Aracane will have the concept keeper's name written on it. Some examples of concept keepers are Flaming Atlas and Slumbering Scylla.
Index:
The index is a very unique keeper which created the universe I-0819; this universe is the home to the main character and most of the current cast of characters. Index takes the appearance of three magic circles, but besides that, it doesn't have any other form. The Index also created some of the most powerful things: the four fragments, magic and the origin point.
Origin point:
The origin point is a being that is made out of the purest form of mana; its purpose is to spread mana through universe I-0819. The origin point also releases a spell that is called "Creation of spells". This allows anyone that contains magic to create spells at any time; this also includes grand spells, but only three can be created. The origin point also created a unique type of magic called 'runes'.
Magic & Runes:
Every magic in universe I-0819 is originally
From the index, each magic is unique to each person. Some people can have two types of magics, but they are quite rare. When a magic user masters their magic, they are able to create powerful spells called 'grand spells'. When a magic user runs out of mana, they won't be able to use their magic until they regain their mana.
Runes are magical symbols that are imbued with a specific type of magic. Runes are created by the origin point; the only way for someone to obtain runes is if the origin point shows itself to them. When a rune user masters their runes, they are able to create a pocket dimension in which their power is at its strongest; to summon these dimensions, the rune users must say their oath, which they will learn when they have mastered their power.
Fragments:
The four fragments are a power source of magic which was created by the index; these fragments grant the users magic and the ability to evolve themselves into something far more powerful. Each fragment is unique to each of its users, and they take the form of something that resembles their magical power. The four fragments users are Nova Icyln, Testarossa Amelia, Shiki Kiriji and Nicole Setto.
Evolution:
Evolution is a unique phenomenon that only happens when specific conditions are met. Evolution allows the user to evolve into more powerful beings, but only a handful can evolve; if the evolution fails, they will become this twisted being in an endless amount of pain, unable to go back to their previous state.
Divine Relics:
Divine Relics are powerful weapons which are created by the Nether Forge; it creates weapons that have unique abilities. The user is also able to flow their magical energy into the Divine Relics, making them more powerful. The most powerful Divine Relics are the four legendary swords, which are the Sword of Origin, the Sword of E.N.D., the Thousand-Sided Sword Tsuno and the Blood Sword Iyasu.
Realms:
In universe I-0819 on earth there are five realms: the human realm, the heavenly realm, the Nether realm, the underworld and oblivion. These realms are created by the index; they are key locations in universe I-0819. The four beings of creation ruled over some of these realms. The human realm is full of humans and cities; this realm was originally ruled by Garuda Amelia, the mother of creation. The heavenly realm is home to angels, gods and spirits. This realm was ruled by Florence Radiant, the first god. The Nether realm is home to revenants and wraiths; this realm is also rich with mana. This realm was originally ruled by Fury Blade. Finally, the Underworld, home to demons, devils, fallen beings and phantoms, is ruled by Nezha Kane, the Overlord of the Underworld.
Gamma, Apex & Omega:
These are the three classifications of the highest tier of magic, which can only be obtained by completing a grand trial to evolve a grand spell into one of these types of magics. Gamma spells are spells that affect the environment and can alter the cosmos itself. Apex spells are the most destructive classification. These spells are only able to destroy; they are so powerful that they could destroy time and space. Finally, omega spells are a combination between apex and gamma spells. They are able to affect the environments of plants, but they could also destroy them. Because of this, omega spells are the weakest out of the three, but still, they are extremely deadly. These classifications are only known to the user once they have completed their grand trials, and these will use every last drop of their mana.
Timeless keepers:
These beings are the most powerful in their respective universes; each of them is unique but is the guardian of their respective universe. They are so powerful they can go head to head with strong keepers in the cosmos. When a timeless keeper comes into existence, they alter history with their title so regular people know who they are. There are five Timeless Keepers in total. The Timeless Keepers of the universe I-0819 is called Kamiya Renna, the All-Knowing one.
[This is all the important information that you can look back on when reading my story. I hope you enjoy it.]