Alright so, Alastor's backstory (that I've written) is that he is a demon who was defeated by a Nephilim who passed their power down a human clan, that being the Glaytor clan. However, there is more to his backstory then just that, obviously though.
See, all Demons, before becoming Demons, where once Angels. Demon, in the language of the Humans of this world, means "Fallen Angel". Again, obvs.
Well, in terms of the Angels, very little is known about them, unlike the Demons who, well, like fucking with Humans since the Angels consider them "the ones descended from the Angels" even though they aren't actually, as the closest thing to that would be a Nephilim.
Angel/Demon + Human = Nephilim.
Humans just sorta showed up
I mean I do have a backstory for Humans, but first, Alastor.
See, Demons earn that title by committing crimes, pretty obvious. They are thrown down to Hell, and after they have served their time, they gain the ability to travel to earth. Though they keep their title as a Demon. Now because of this you may think that Nephilim are super common. Well, no, since Demons are hella racist towards Humans since Demons, while in hell, learned of the Human's true history. See, Hell is the opposite of Heaven, and just like Heaven, Hell spawned it's own creatures known as the Omegus. These beings were considered super evil and all that jazz by the Angels until after the earth was made and they mysteriously disappeared. Hint hint nudge nudge
Alright so now that you know all that...
Alastor's crime was basically that he was a pickpocket. That's the equivelent I present. So he was sent to hell for a little while and his sibling, a female Angel named Roma, was the first to discover the Humans. Alastor spent his time, then once he was free, he went to Earth, where he knew his sister was. Once he got to Earth, (please note, he learned of the Humans' origin at this point) he went to his sister and found her not just hanging out with them, but having married one and had a child. Now Alastor got really pissed about this whole thing and well, killed his sister in cold blood. The Nephilim ran off with his father and disappeared as Alastor pulled the whole "Gr I will find you, you abomination" ect ect.
Eventually, The Nephilim child had his own family and started a clan of Human's he called "Glaytor". He named his oldest son Angeal, after his mother. After raising his family and having two more children, Alastor finally arrived. Now at this point the Glaytor clan was connected with weapon forging and enchanting, well, Alastor battled against the Nephilim and Angeal, and well, Nephilim sacrificed himself to seal Alastor within his sword so that he could never hurt any of his family.
That's Alastor's backstory
Also, the enchantment that the sword the Nephilim sealed Alastor in was that it could shift into whatever sword the person using it would be the best with.
So, when the Nephilim used it, it was a Broadsword. When Krieg uses it, it's a Katana.
Also, the only reason that Alastor fused with Krieg (a human, or more accurately, an omegus that changed their bodies so the angels would stop hating them) was because he was REALLY bored with doing nothing for like, 1000 years.
And well, Alastor and Krieg both go from two people sharing a body to really really really good friends.
Within all Humans is a fragment of what they were prior to their appearence on the Earth, a fragment of their lost being, a fragment... of the Omegus. Due to this fragment, all Humans hold within them a bit of Arcane, a bit of Magic. Now, Magic is one of three forms of matter within this world, that being "Matter", "Arcane", and finally "Void". Magic is key in the manipulation of the other two forms of matter, Void is that which doesn't exist, and Matter is that which does exist. Anything that holds magic within it, so any Human, Angel, Demon, Nephilim or ect, can use magic. It takes a lot of training, but if one masters one of the many kinds of magic, they do not get "less skilled" with lack of use. One can only improve.
There are seven variants of pure magic, which can be combined and controlled in many, MANY ways. Now the obvious ones are, well, Fire, Air, Water, Earth. Obviously.
However, the ones that are less obvious are the last three.
Alpha, Omega, and Purity.
Alpha can also be known as "To control that which exists", Omega can be known as "To control that which is an idea", and finally there is Purity. Now Purity, that's a neat one, as Purity is only held by one being, and that being is one that even the Angels don't know of.
Purity is also known as "the power to create".
Now they can be combined to create many many unique magical spells.
Fire and Air can create "Ash" or "Smoke".
Air and Water can create "Mist" or "Bubble".
Water and Earth can create "Mud" and "Plant".
Earth and Fire can create "Magma" or "Blaze".
There's many more, but I feel that explains it pretty well.
If you want you can go ahead and try come up with some stuff and I can give you what would be the combinations~
Just gonna explain how "Light" works as it's a bit more complex than normally.
Now Light is a combination of all four base elements and Omega. This is why Light refers to both Light and Darkness as one cannot exist without the other. This is also why there aren't Paladins or Priests in this world. Well, the magic ones. The Paladins and Priests in this world are more like the ones we have in reality.
As for healing, it's a combination of Alpha and Omega magic and is, well, healing magic.
Alright so, the closest that anyone has come to using Purity magic other than the unknown creator is with the Nephilim, who, when he killed himself to seal away Alastor, somehow created Purity magic and sent it shimmering throughout his bloodline. Every 100 years, a random descendent of the Nephilim will obtain a small bit of Purity magic alongside all of the skills of the previous ones to wield it.
Shoke is the 10th descendent to wield it, which is referred to as "Solid Light".
That's... pretty much it.
I mean, I guess I could get into enchantment...
Alright so, as mentioned before, the Glaytor Clan is one of the greatest groups of Enchanters and Blacksmiths in the world.
Now, The clan is seperated into three parts.
The Enchanters, who well, enchant.
The Blacksmiths, who forge things.
And the Guardians, who protect the Tomb of Alastor.
Enchantment is a combination of Omega magic, Alpha magic, and other ones to assist in the enchanting. Let's just use swords as an example.
Lets take a basic Broadsword, and if an Enchanter fuses the weapon with the basic enchantments the blade shall never break or dull, which basically comes with every enchanted sword. However, say you wanted to make the sword light with blue flame whenever you drew it from its sheath. Well, first you'd need to combine Omega and Fire magic within it to make the blade light ablaze whenever it makes contact with the air (Flames that don't harm the wielder, obvs) and to change the colour, they use Alpha magic to enchant the sheath so it makes the flame a lovely azure.
Tada! A sword that burns blue when drawn!
Okay, that's enchantment, what's next...
Well, Krieg's Black Fire is just Omega and Alpha magic changing the flames to black and causing them to form burns that never heal.
Now, there are ten swords that are known pretty much worldwide for their craftsmenship and enchantments.
Galahad, the blade that held Alastor within it. A sword that changes to fit the wielder's fighting style. (Glaytor Made)
Sword of Angeal, a Rapier left behind by an angel that can reflect any magic.
Yamato, a Katana that increases the speed of it's wielder by 500%. (Murasame Made)
Durendal, a Broadsword that absorbs physical impacts and can release the energy in a super powerful blast.
Ebony, a Cutlass that can cut through anything.
Ivory, a Cultass that can grant it's wielder temporary flight.
Charlemane, a Bastard Sword that increases the wielder's strength by 500%. (Murasame Made)
Excalibur, a Longsword that grants it's wielder all the powers of an angel. (Flight, unlimited control over Alpha magic, increased speed and strength.)
Tyr's Hand, a Broadsword that grants the wielder complete control over lightning.
Black Omega, a Saber with a black blade that steals the souls of those it slays.
I'll talk about the world next.
The world is, well, obviously, called Earth. It is the home to many many Humans, who are loved greatly by the Angels and hated greatly by the Demons. You should already know why by now. The planet is seperated into four continents. North Aristar, South Aristar, Komara, and Vryl. The story with Shoke and Krieg mostly takes place on Vryl, a Northwestern continent. Vryl is home to many clans, but the three that must be paid attention to the most are
...The Glaytors, The Rhonins, The Sheros, and finally The Solcrest. All great respected clans and all very dangerous to cross.
Wanna hear the quick version of the first act of the main story I'm gonna tell with this setting?
So first, Krieg runs off with Alastor and Shoke chases after them. Alastor and Krieg, after running off together, both share the same body and end up sharing their memories. Alastor basically learns of Krieg's sorrow and deep hatred for his family and starts trying to tell him what hating your family will lead to, nothing but eternal sorrow and regret. On the other hand, Krieg knows of Alastor's past and basically lets him control his body as a sort of apology for what his clan did to him. The two slowly start to find similarities between them and slowly become friends.
Oh, and they learn Shoke is chasing them so they create the Ashen (Or Ash Demons) to slow Shoke down. Belial as the strongest and one to battle Shoke directly, Samael to lead the lesser Ashen, the Asmondeus to slow him down physically and the Sidonai to distract him. They are basically soulless beings forged from fire, air, earth, alpha, and omega magic.
So Shoke begins fighting them, basically immediately recognizing them as Alastor's way to slow him down. Eventually after defeating Ashen ambushes many times, he runs into Zerondal, a visitor from another realm. They duel, as Shoke is still not exactly in a trusting mood, and the duel is ended in a draw as more Ashen ambush the two of them, and they work together to defeat them. Zero, as Shoke calls him now, joins Shoke in his adventure as that is what he seeks. Adventure. They continue along for many days, battling Ashen many a time, meeting with other people and clans, and eventually running into Alastor/Krieg at a mysterious temple built by the Angels. A temple that held an item that could give Alastor a body of his own once more. Shoke, threatening Alastor to give him his brother back, realizes that Shoke doesn't know the truth and reveals to him that Krieg was the one who freed him, even letting Krieg admit this truth to Shoke. Shoke is, well, broken by this revelation. Alastor and Krieg, using the blood of a Demon and the Blood of Krieg, create a new body for Alastor... a Nephilim body. Alastor doesn't quite understand how the body works, so he decides to stick with Krieg as he assists in the full restoration of Alastor's power. Shoke battles his brother, ending in a draw with both sides having to retreat as the temple collapses from the fierce battle of the brothers.
Some side things that I didn't mention that are rather important.
Belial gains free will and becomes a recurring rival for Shoke.
Samael and the rest of the Ashen don't really die and just keep coming back.
Krieg sends the sword Galahad back to the Glaytors after the final battle.
Shoke makes himself his own sword.
Krieg becomes a General for the Solcrest clan.
Krieg and Alastor become housemates.