In the Lumin universe, there is a source of magical power. Magic can be defined as the process of gathering the energy that permeates the universe and transforming it into a different form of energy. The people of Lumin refer to this energy as "Aer."

Although all humans can perform magic, they must use an object made from a metal called “Aernum” (such as a staff, weapon, glove, etc.) to do so. However, some people are born with the ability to control magic directly. These people can sense the Aer around them and have the ability to draw it into their bodies and channel it into a different form of energy. These individuals are born with glowing green eyes, which is an immediate indication of their unique ability.

These people are called “Drair”. Thanks to their abilities, Drairs can develop themselves to achieve great power. As a result, the most significant impact on Lumin's history has either come from Drairs or has been directly shaped by them.

There is a sect that Drairs are part of. This organization claims to represent the belief system within Lumin and includes all children born with this ability. In fact, any individual born with this power has no other choice but to join the Drair sect. The sect is very strict on this matter, and if they capture someone with this power who refuses to join, they execute them.

Additionally, Drairs have the ability to enter the minds of animals and control them. They use this power to control and ride dragons, further enhancing their already feared strength.

The belief system of the Lumin universe is based on a pantheistic religion. According to this religious belief, God is essentially the energy itself, Aer. Drairs refer to themselves as the chosen ones who can sense and harness the power of God. In this religious structure, ordinary people do not have special rituals of worship, but the concept of prayer exists.

People believe that when they die, their bodies will perish, but their souls, which originate from this energy, will return to it and become part of the whole again. Drairs teach that if a person follows the righteous and virtuous path that Drairs show them, their soul will be nourished and fully merge with the energy. However, if they stray from this path, they will gradually lose this energy, and when they die, nothing will remain of them—they will completely cease to exist. In short, Drairs act as religious leaders and convey this belief system to people according to their own cultural values and morals.

According to legends, this religion was founded thousands of years ago by the first Drair. There is no special name for this religion, as everyone in Lumin believes in the same thing. The words of the first Drair, the founder of the religion, have been recorded in ancient texts. According to the narrative told by the religion, the first Drair was created by the energy itself to guide humanity, without any parents. It is also said that the first Drair had such a high concentration of Aer energy within them that after their death, their soul did not return to the essence but instead split into thousands of pieces, reincarnating in newborns and giving them the power to use this energy.

The belief that "A Drair is born the moment another Drair dies" is one of the foundational pillars of this system. It is believed that while the soul of the deceased Drair returns to the essence, a piece of the first Drair's soul bonds with the soul of a newborn child at the same time.

In Lumin's history, technological advancements that allowed ordinary people to use magic did not diminish the loyalty to Drairs and the belief system, but they did begin to weaken the Drairs' control over the religion. Some people began to question whether Drairs were truly the sole representatives of Aer.

Moreover, with further technological advancements and the discovery of gunpowder, the presence of firearms has also reduced the military dominance and power of the Drairs.