Custodian

Harry Potter/Highschool DxD
Harry Potter/?
I own nothing
This is my first fic in the Highschool DxD world.

I: A rather dedicated introduction part 1

(From wherever is relevant to a thousand years before HP starts)

Screams! There were so many screams that permeated the air. Screams of terror, anguish, triumph and possibly the most important one, screams of loss. However, the screams were not the only sounds at this battle, there were grunts, groans and gurgles as people fell.

Except, they were not people. Some of them possessed white beautiful swanlike wings whose presence turned their raven winged brethren green with envy and put their batlike winged cousins to flight. Light appeared in the bird-esque winged people's hands and it morphed into spears. The leader of this particular white winged strike force was Uriel, the Flame of God his twelve angelic white wings opened to their fullest. "Repent Azazel, give up your obsession for the female form and Father will take you back."

"Oh Uriel, humanity is such a refreshing change. So fun, so much interest. I can't see why you would not want to leave Sixth Heaven…So no, my friend. I can't come back, there is still so much to see and so much to do." Azazel said with a grin as he formed a light spear and he and his former friend collided in the sky. His ten ink black wings similarly extended.

On the ground a tall and thickset Fallen, dropped one of his angelic opponents and roasted a devil with a blast of sacred lightning. However, he hastily took flight as a tall imposing figure with mane of ginger hair erupted out of a shroud of mist, accompanied by three more people.

Angels both Normal and Fallen bandied together to take on the fresh entrants into the war. The entrant's names were Manannan; Neit; Aife and Cailleach. In other words, the Gaelic Trickster and God of the Dead and Underworld; the God and Goddess of War and the Creator and Destroyer.

For a war that had initially been a three-way war between the forces of Heaven, Grigori and the Underworld it had been hit by several considerable bumps on Earth. The initial fighting had been done in Africa; where the three Factions had begun fighting with the "inferior" gods of Africa.

From Africa, as more Angels fell and Devils were created the fighting began to spread out. Some places fell to the Three Factions quicker than others, some had taken a while and in a few places they had been repulsed all together. Some examples of the quickly falling pantheons were the Pantheons in what would be Africa and the Carribeans; the Lozi people and the Efik people.

Australia, New Zealand and the islands around there are prime examples of preparation. The last place of where the pantheons were fighting was in what would be known as Britain. Where the Pantheons although they hated one another had formed alliances in order to at least make their last memorable.

The first place of known repulsion was in the Landmass that would be known as Europe. Specifically, in what would be Southern Europe in the places that would become part of the Greco-Roman mythology. The Greek Gods of Olympus, whose power had come from being tied to Mount Olympus had been in the midst of what would be known as Titanomachy; the overthrowing of the Titans and replacement with the Olympian Gods. Some Devils who had been fleeing the fighting had taken refuge there, and were working with the hidden Olympians to overthrow their father.

The plan worked, and the moment Zeus had been crowned it had attracted the attention of the Angels and Fallen Angels. However, the Devils had been eradicated as well.

The Pantheons that would make up the Scandanavian Folklore would be another. How it would have been done, no-one knew or did they really care but the Nordic Pantheon especially was able to repel their attackers. The last place of note was Egypt, where Set and Apophis one God of Chaos and One Dragon of Chaos had been fighting it out. Set was no fan of Apophis and chose to be evil to maintain balance as opposed to Apophis who was evil for the sake of it. They joined forces to repel the oncoming invaders and it was at that moment that Set struck him down, took him off at the knees, neck and snapping the spinal cord for good measure. The last thing Set saw before he, "died" was Apophis being sealed by an entity made out of pure white light.

Asia meanwhile had taken up extreme defensive measures. Again, like most Pantheons each one was wary of its neighbours but for unconditional peace, it let in Devil and Fallen mainly for those seeking sanctuary.

Meanwhile back in Ireland, Manannan grinned madly at his killer Lucifer "
When, my sword, ring and cloak are returned, you angelic homunculi asshats, feel the wrath of the Tuatha de Danann and kiss my ass." With that Manannan mac Lir died.

Aife, grunted as she died "I place all our weapons in the custody of our Custodian Family. Where they may lie until Manannan mac Lir's chosen walks the planet!"

At some point after the annihilation of the Resistance of the Britannia Matter, the God of the Bible sealed away the Two Emperor Dragons: the White Vanishing Dragon Emperor of Supremacy; Albion and had been sealed into an Artefact that would become known as the Divine Dividing and the soon to be known Red Welsh Dragon Emperor of Domination; Y Ddraig Goch or Ddraig and he would be sealed into an Artefact known as the Boosted Gear and the two would battle sealed into two people throughout History.

The White and Red Emperor's conflict was such a threat to the Earth, that The White God, Angels, Fallen and the Devils would band together to contain the warring goliaths. However; again this would not come without grievous costs in this case the loss of the original leaders of the Grigori, the last of the Original Kings of Hell and The White God himself.

However, during Ddraig's sealing a large lump of his flesh was removed and it landed in what would become Wales.

The Britannia Matter, or the annihilation of the native gods and their worshippers happened across the world, as mentioned previously. However, much like the Brettonians final cry, it was not the only one. The weapons of the pantheons that existed before that of the White God quickly became known as Ancient Gears; weapons whose potency might not immediately compare to the Thirteen Artefacts that would become known as the 13 Longinus, of which the most powerful was the Spear of Destiny but some of the Gears; especially Fragarach, would be classed as Psuedo-Longinus. No-one knew if they could kill a god but no-one wanted to really bet on it. Furthermore, most of these artefacts had been locked away and the Hosts of Fallen, Angelic and Legions of Devils wanted to keep it that way.

The White God; was effectively in a coma and would use his last fumes of his considerable powers to create the 'Gear System' where humans would be born with anyone of the many types of Sacred Gear all the way from the skill known as Sword-Birth, to the lowly Draconic Gear; Twice Critical, which would become the most noticeable and reoccurring Draconic Sacred Gear and towards the echelons of the Thirteen. His final gift was to create the First Demi-God, Joshua of Nazareth; Jesus to others. It was Jesus's blood on the that would become the Spear of Destiny that would create the 11, with Ddraig and Albion taking their respective positions as mid-range Longinus.

But that is a generic overview of their overall ranking in the 13. As the old maxim generally said: "It's not what you have, it's how you use it", in terms of Red Dragon Emperor's the wielder who went by the name of Belzard, his skill with the Boosted Gear was so immense that he had struck down two wielders of Divine Dividing, traded blows with the a descendent of Cao-Cao, this one the wielder of the Zenith Tempest and forced him to retreat. Belzard had also fought someone who had possessed all five parts of the Prison Dragon King, momentarily afterwards.

Elsha was another Red Dragon wielder, she was one of the few Empresses that had wielded the might of the Boosted Gear. She had been a very skilled healer and what could be classed as a shield-maiden, she chose not to fight but when she did it was not left to the imagination that she was the Red Dragon Empress.

Furthermore, in Ireland specifically, Egypt and Australia where Devils and Fallen had suffered more extreme casualties, other weapons were formed. They were Sacred Gears of course but could only be described as Anti-Gears, Gears that are designed to counteract Sacred Gears. Thankfully there were only 12 God-Killing Anti-Gears to deal with as the Boosted Gear and the Divine Dividing balanced each other out.

As for the White God, when he died, he left some very interesting and potent artefacts of his own. When an entity like the White God or God-Of-The-Bible died, it left interesting artefacts; some became well known and some were secreted away and left with very authentic looking replicas. Three of these replicas took the shape of nails; as for the nails themselves, they found themselves inside three hilts of swords belonging to a set of Three Angels above the Archangels; The Three Lord Wardens. The Three Wardens; Love, Faith and Hope had unfortunately died but their swords had been scattered and would end up creating an entire myriad of myths, legends, folktales and the like.

But for now after the sealing of the Dragon Emperor's all three factions effectively went to ground, erasing all the major cases of their existence. Something, similar was done with the surviving pantheons, weakened and battered as they were.

Then came the Youkai, no-one was sure how long they'd been around but due to them keeping out of the fighting except when their territory had been endangered. None of the three factions had found all of their brethren's body parts…yet. Those that were found were later attributed to Legions of Romans who would later disappear in the same place.

The Youkai were far easier to track, wherever ley lines converged into Ley Nexi or a Nexus, one could find Youkai hanging around. Currently there were Nine Youkai Leaders, each one for the Nexi located throughout the world. The leader for each one; forsook their old form and ascended to one of the Nine Tailed Beasts that ruled that particular Nexus. Each of the Nine, were protected by a family of humans and youkai hybrids whose task were to restrain the Leaders should they not sufficiently manipulate the new mantle of power. The only known family at this current point in time were known as the Uzumaki and they were the retained guards of the Kyoto Nexus; of the Kyuubi no Kitsune or Nine Tailed Fox.

The factions slowly bled into the background, slowly cementing themselves in as creatures of myth and legend. Seldom appearing only to perform a "miracle". It was not until 1300 B.C. as mortals would put it that Angels, Fallen, Devils and Youkai would be cemented into the world. They naturally remained hidden and collided whenever mortals gave them the opportunity, and that was at least 4-5 times every decade or so. It was not until 6th of August 1945 when two Atomic Bombs were dropped on the Japanese Cities of Hiroshima and Nagasaki; annihilating every man, woman, child, fallen, angel and devil in the city; the most notable devil families hit were the Astaroth and Abaddon families. The Abaddon family did not recover; whereas the Astaroth family were reduced to a dozen members.

From 1945 onwards, another faction began to appear. They had been around for at least four thousand years but the sect of magicians were a powder keg, spontaneously and constantly exploding. This sect of the supernatural had been now regarded as the "soap opera of the millennia". To the Devils, Angels and Fallen Angels watching the magicians scheme, plot, entertain and kill one another was beautiful, they all saw them as a valuable resources…wild cards to manipulate against each sect and against each faction. However, the ones that had the closest eyes on them were the sacred twenty-eight of Britannia; more accurately the House of Potter.

The House Potter, was more than they appeared. It certainly did not help matters that Azazael; the Fallen Archangel of Death and one leader of the Grigori and Governor-General Elect of all the Fallen Angels had saved a few of them and had his own eye on them. As did Zeoticus Gremory, Balthazar Lucifer, Gideon Asmodeus and Lucifer of Hell. The reason they had their eye on this family…they knew and recorded where Ddraig's flesh had landed and it did not help matters that where Ddraig's flesh had landed, was also where the Britannia Matter incident also occurred. So it was very important to keep the Potter family where everyone could see them.

Accidents could happen, couldn't they?