As children, Amun and Numa quickly discovered that they inherited great powers from their mother and father.
Nyx, however, wasn't much of a doting mother. She herself has never known parental love, so naturally she didn't show any for her own spawn. The other gods would often look after and teach the children.
The twins quickly learned how to take care of themselves. Even at a young age, the both of them were easily stronger than most adults. They would often challenge their mother, only to be blatantly defeated every time.
Amun was a kind person. He genuinely cared about the happiness and welfare of others. He always tried to do his best to make the people around him happy.
Numa however, was the polar opposite of his brother. Numa was cold-hearted like his mother, only he developed a more sadistic and dreadful personality. He took pride in making others angry at him, or watching them suffer in one way or another.
Amun and Numa rarely got along, but they had one thing in common— they hated their mother. With no sense of love for her children, she never checked up on them, nor did she ever attempt to remotely care for them. Naturally, hatred grew towards her from Amun and Numa.
The local citizens of Olympia had their own opinions of the twins. As expected, Amun was generally well loved, while Numa was usually avoided, or treated kindly out of fear.
Numa had an incredibly strong grudge against the world. He hated everybody and everyone. As he grew older, his hatred intensified and so did his thirst for power. It wasn't long before Numa became a God Killer.
God killing was originally seen as impossible by lower lifeforms, as only pureblooded gods were supposed to be able to kill other pureblooded gods. Killing a god, depending on how powerful said god is, gives a specific boost to a user's spiritual essence (the source of a person's energy or power). As a result, Numa was now strong enough to the point that Amun could no longer restrain him.
Numa, motivated by hatred, proceeded to storm Nyx's palace, killing every god he came across, only getting stronger as he neared his mother's chamber. Once reaching it, Nyx finally acknowledged her son's strength, but warned him that it was too soon to raise his hand against her. Numa only got even more enraged, and charged her anyway.
Nyx was still, once again, out of his league.
Nyx's main power is called Stasis. An ability that made time stop within a blue-violet spherical space. If a person is caught inside of this space, they are unable to move until time runs out or until the user of Stasis makes contact with the opponent. Inside Stasis, all energy and magic attacks are negated completely. Also if Nyx is injured, or takes any sort of damage, she can also rewind time inside Stasis for a few seconds.
Nyx created eight violet polearms from her energy. She sent them all to Numa, who was far too slow to avoid them. He would die right then and there, at the hands of his own mother.
After the fight, Nyx rejected the idea that Numa was ever her son, and she made sure that Numa was never talked about, or heard of, again.
Meanwhile, Amun could not publicly say who he was or show his face, as everyone knew the crimes Numa committed. They tied these crimes to Amun as well, and he would either be hated or hunted.
From then on, Amun would wear a white kitsune mask and a black cloak, so no one would find out who he was.
He went to live in Zedan, inside a massive library in the middle of a vast desert, where he studied the current state of the world. For the next few centuries, here Amun would unlock the secrets of energy and magic, how to control it, shape it, and use it efficiently.
In these times, almost no one but the gods knew how to properly use their energy, and few knew how to use magic correctly. But Amun, a genius amongst geniuses, learned how to use all of it by himself and how it worked. He would write many books based on the Soul System, the network of nerves and nodes inside the body connected to the Soul Chamber, where a person's spiritual essence is created and distributed throughout the body. He wrote books on the elements, how to use them, their strengths and weaknesses, their different forms and the energies that they are attracted to. He learned how magic worked, based on invisible particles called magicules, which become mana when a person absorbs them. He also invented the Magic Circle, which made it much simpler to carry out complex spells.
Over the next nearly 600 years, Amun wrote ninety-nine books based on the systems of energy and magic. They would later be dubbed the 99 Books of Amun. In his training in these systems, Amun created ocular powers that were the manifestation of his mother's strength combined with his father's angelic power. The Eye of Creation, Eye of Destruction, Eye of Realms, Morning Eye, Lunar Eye, and Mystic Eye. Each one of these ocular powers represented a fundamental existing cornerstone of energy and magic.
With all of these powers now inside of Amun, he suddenly unlocked the Golden Eyes of Immortality. His eyes would permanently become a deep amber color, representing his now-eternal life.
No matter what happened to him, Amun could not die. He tried many ways to destroy himself, but his body would simply regenerate on its own, even from the subatomic level. Stuck inside this dilemma of eternal life, Amun decided to run his greatest experiment— what would happen if he gave all of his knowledge to the mortal races?
Soon Amun once again let his name be known. It seemed that after so long, the story of Numa did not include himself in it. It was now possible for him to start fresh in the minds of the people.
The first thing he wanted to do was break the gods' unfair rule over the mortals. Teaching the humans, angels, and absydians his knowledge resulted in society as a whole getting flipped on its head. Amun purposefully kept his knowledge secret from the gods, so that it wouldn't reach Nyx.
The countries of the world could now have their own monarchs instead of being oppressed by the deities. There were now kings, queens, princes, and princesses.
Amun became a worldwide phenomenon known as The Sorcerer.
Other than Nyx, Amun was the Earth's strongest being, as he had complete knowledge of energy and magic, and the six ocular powers, resulting in his immortality.
The citizens of Zedan insisted that he became Zedan's first king. And so, he was now The Sorcerer Amun, and as well the first King of Zedan.
On Earth, there were more humans than any other race, and it became apparent that the weak humans actually had potential to be stronger than some angels.
Other than Olympia, Urvenia, and Gon, every country's monarch was a human, or a mix of human and angel. The humans and angels got along well together, but the absydians became humanity's mortal enemies. Civil wars between the humans and absydians would ensue. But with the angels on the humans' side, the absydians would eventually lose, but not without taking a few angels as prisoners.
They would retreat to the countries Gon, Hampton, Urvenia, and Olympia. There were fewer humans in these countries due to them being so close to Nyx, and those that were human, were merely a part of her empire.
Nyx proclaimed herself the Queen of Olympia for the time being, but refused to be called as such. She retained her title as Goddess. She promised protection for the absydians as long as they swore their loyalty. The absydians agreed.
Nyx would then begin experimentation on the absydians. She made the angel prisoners forcefully impregnate the absydians and vice versa to create a new race— archangels. These archangels were stronger than regular angels, and were much too powerful for humans to handle.
A world war began between Nyx's countries and the rest of the world.
Nyx planned to regain absolute control over the planet again with her new empowered army of archangel soldiers. They were winning easily, until Amun himself decided to join the battle. His power greatly overwhelmed everyone else's, and he singlehandedly destroyed Nyx's new archangel army.
Even after Nyx sent the gods to war, they were still no match for him.
Nyx herself was then forced to fight her son.
Their battle was truly great. To those who witnessed it, they wouldn't be able to tell you a thing. The battle destroyed miles and miles of land. Anyone who dared watch the fight surely died.
Nyx and Amun almost seemed to be evenly matched, but Nyx was indeed stronger. Still, she could never win because Amun couldn't be killed. If he was impaled, or if his head and limbs were cut off, he'd just regenerate himself.
His immortality won him the war.
Nyx had no choice but to retreat back to Olympia. She could never win that fight, as she was not an immortal goddess. Forced to back off, she postponed her plans to control the world.
From that point on, Amun was a hero of the planet Earth, and its first positive legend.