*AETHERIUS*

I was very surprised to find out that in this world, my past life also existed, but that was around 350 years ago. In this world, the mana core still exists, residing in the abdomen, measured by its color. In this world, about 40% of people are born with the core, but it's empty. As the person grows, the mana naturally fills their core until it's time to refine it. Miraculously, my entire family is within that 40%.

For the other 60%, it manifests between the ages of 5 to 7 years old, following the same process. Although the core already manifests with a small amount, as they grow, it naturally fills with mana until the estimated age of 8 or 9, when the core is full and ready to be refined.

When the core is full of mana to begin the refinement, it is divided into 2 parts by core level:

- Red:
* Dark: Start with the first refinement.
* Stable: Once the first refinement is complete, it's time to start training and continue increasing the core level.

- Orange:
* Dark: Signs of the refined element begin.
* Stable: It's possible to access your refined element and begin its forced training if you want to overcome the most challenging stage.

- Brown: At this level, it's the bottleneck for many mages on the continent. Only the most fortunate and patient can overcome it, while others may not. Although it's not the strongest color, some don't give up and become strong despite their inaccessible potential.

- Yellow:
* Dark: Mental training to avoid fatigue after passing the brown stage.
* Stable: At this level, one may manifest an increase in power or even be compatible with a second or third element.

- Light green: At this level, power is also increased, and magic recitation does not require a medium.

- Light blue: Here, the ability to fly and maneuver is granted, although it requires a lot of mental effort. Even if they have completed mental training, they need the understanding to stay in the air without tiring or emptying their core.

- Black: The pinnacle of power, where only the capable reach this stage of their core.

Only a handful of people have refined their core to the Black color due to the combination of colors passed through the core. These people are known as Descendants, higher-level individuals in the army who command the center of each capital as their "kings." Flying is no longer difficult for them; they handle it naturally due to refinement and control over mana. They simply need to swing their weapon or move their hand to launch an attack.

Although they are also called by another name, the DESCENDANTS, those who command these central figures, of which I was part of in my past life. Although they were previously called CELESTIALS, I don't know why they changed the name if it seemed cool to me, although I have a theory that they inherited our abilities or were compared to us, which is why they were called that.

In this life, I also have the goal of being part of them again. I can't wait to see if they made some kind of statues in our honor, especially mine, and to meet again with my great friend with whom I had my last fight.