Author's Note: This is a Highschool DxD fanfiction. This will be Issei x Large Harem. Rated M to be sure. Review if you want to.

Disclaimer: Highschool DxD and it's characters and plot belongs to Ichiei Ishibumi.

Prologue: Before Life

In the beginning, there were only 2. The dragons that are infinity, and dreams. What if there was actually a more powerful, sentient being?

Mag'Ladroth is sentient. The dragon of void, the existence before light. The all powerful being was a force of pure void. In the limitless dimension of darkness, where he resides, is where the being brought everything to life. In order for life, there needed to be a domain. This created the universe. At first, the plan was to not give independence to the universe, but somewhere along the line of the creation of a giant energy source, it blew up. This became the phenomenon known as the Big Bang. Angered, Mag'Ladroth flew into a rage, tearing rips in the space time continuum. Unknowingly, the dimensions, Null, Underworld, and Heaven, were created. This came along with the near void creation known as the dimension gap.

The dimension gap was a nearly endless field of infinite space. Some time, the infinite space began to manifest itself, into a being of energy. Taking after the creator, formed a dragon, known as the dragon of infinity.

Ophis.

Mag'Ladroth decided that the energy of infinite was too great so he created a countermeasure. This became known as the dragon of dreams. The endless possibilities presented in the universe, fueled the power of this creature, putting it on equal footing to the dragon god of infinity.

Great Red.

Satisfied with its creation, the dragon of void went into resting, all the while releasing energy to sustain life in a certain sector of the universe. This conveniently allowed the energy to start creating life, with the first creations of Dinosaurs. What most did not know, is that the creatures were accompanied by the close sentient beings of Dragons.

There were 16 original dragons. This consisted of the Two Heavenly Dragons, Ddraig and Albion. Along with these, were the Dragon Kings, Tiamat, Yu Long, Vritra, Midgardsormr, Bahamut, Tanin, and Fafnir. Finally, the Evil Dragons, Crom Cruach, Aži Dahāka, Apophis, Grendel, Yamata no Orochi, Ladon, and Niðhöggr.

Ddraig was the dragon of domination, and had the power to burn everything in his flames. However, one day, the flames had hit the Heavenly dragon of vanishing. Albion's scales had deflected the flames, amusing Ddraig. Happy that they had rivalry for each other, they started to compete at high levels of fighting, to the death. They were sworn as arch-rivals. They fought for centuries on end. Even after the apocalyptic event of the Dinosaurs perishing, and the Great war of the factions, the dragons fought.

This got the factions of Heaven, Hell, and the Grigori to band together and seal the dragons that would eternally fight.

With the power from the combined forces, they were able to send the dragons into inherited created powers called Sacred Gears. These were powerful artifacts created, by the overflowing energy of the void, to enhance and give powers to people.

At once, peace was at hand. However, the tension from the Great War lasted and the grudges between the forces stayed. 100 years before the Great War, Bahamut, the dragon king of goodness, fell in love with Tiamat. They had a child known as Shiiryuu, who became a very powerful dragon of strength. Shiiryuu was a deciding factor in the Great War, being able to wipe angel battalions within minutes. After the sealing of the Heavenly Dragons, he ascended to the dimension of Null, or Earth, the center point in null energy of the universe, and married Elvarg, a green dragon of quests. They had 1 child, a son.

Unbeknownst to them, this dragon would become the Dragon of Victory.

Hyoudou Issei.