.: SOLOMON :.
The very first Magi of the Pergrande country and the father of Nai. He coined every last aspect of how magic is perceived in Pergrande. He was one of the first people to understand what "Ethernano" was, and named it "Rukh". He perceived it as an overall binary. Namely, that there is white Rukh and black Rukh, and both types can be used in a multitude of different ways, some crossing over (e.g. in terms of elemental magic, which would relate to holy and demonic magic as is present in our current universe), and there were some things strictly reserved for one type of Rukh. Solomon was on a journey to find "The One Magic", something that sparked his interested despite him being urged to stay in the Kingdom. After all he was in love with the King's daughter as she was in love with him as-well, pregnant with his future son. Despite this he left with the guidance of Rukh to find "The One Magic", only to never return since.
.: MAGI :.
All Magi in Pergrande are descendants from the students of Solomon. Not every being in Earthland is capable of magic. The humans in Pergrande that were, took on the king's teachings, and only their descendants were versed in the arts of magic. That already made Magis in the kingdom increasingly rare. Magi is in essence, only the Pergrandian name for "mage". There is however, a skill solely restricted to the descendants of the students of Solomon. The ability to "see" Ethernano (Rukh). The Magi of Pergrande are the only ones capable to visualizing magic to the extent to which they do. They see the binary of Ethernano as a river of fluctuating particles. Only Magi are capable of seeing Rukh the way they do. After some time of magical study by the Magi, it was apparent that the way they saw Rukh was only one specific way to perceive Rukh, and not the singular absolute truth to magic. However, they did not walk away from their ways and kept the theories of Solomon as they proved to be consistently applicable.
.: RUKH :.
Rukh, could just be Ethernano. It's just the origin of magic, the energy itself. The Magi of Pergrande understand it in a specific way. Namely as the home of souls. All mages in Earthland have the inherent Rukh inside them (the energy that makes them "able") return to the ever-present flow of Rukh. That is why Magi perceive Rukh as the soul of beings because it is the place you go after you pass away. Rukh also has different ways of describing people and the magic that is being used depending on the colour it presents.
.: AL-THAMEN :.
A split-group of Magi that began to understand that the black Rukh for one consisted of a much more potent variety of magic that amplified destructive and negative effects. They discovered Black Magic as such. Furthermore, they believe that beings that do not hold Rukh are soulless, and therefore discardable. Al-Thamen, as such, began their own personal search for "The One Magic". The heart of all magic, found inside Black Rukh. Since most of the Magi in this group have died off, they had discovered Nai (the son of Solomon) and used him since child-birth ever since. Al-Thamen never liked Solomon because his outlooks on life were more positive than negative, although their dark personalities changed his son to somebody just as wicked as them. They believed if they used Nai because of his ability to see rukh, that it would guide him toward "The One Magic", like it had done to his father.
.: VESSELS :.
Solomon, as well his descendants have the capability to grant others the usage of magic, as well as amplify already present skill of magic. A Magi may only share this with a select group of people. With Magi being incredibly rare in Pergrande, and the kingdom being mostly a country centered around knights and the physical like, Magi took to choosing physically capable knights and the like as their "vessels", granting them magic and allowing them access to their abilities. This was the reason why Magi were tolerated for so long in Pergrande. Because they worked together with the kingdom, despite it always being suspiscious of Magi, ever since Solomon entered their realm.
Huge credit to Lyserg for helping me out with this.
