Ch#1(Prologue)

I do not own neither Naruto nor High School DxD, If I did Naruto would not be that stupid and Issei would not be that perverted. They both are properties of their respective owners.

I am currently in the process of rewriting this story, I am keeping the basic ideas the same. Just rewriting some scenes, correcting few mistakes and adding new details so the story may change overtime.

The devils were once ruled by five most influential clans. Among them the leaders of four took the reigns of the underworld and became the four Great Satans. They were Lucifer, Leviathan, Beelzebub and Asmodeus.

The fifth clan Uzumaki said to be greatest among them, chose to live in Isolation. Uzumaki's said to posses bodies superior than all devils, accompanied by a healing factor. Their skills in sealing so legendary that it was speculated a skilled enough Uzumaki could seal even the Gods and the amount of magic power possessed by even a child Uzumaki could make high class devils go green in envy. The ability to create near indestructible chains and the skills an Uzumaki showed with a blade were just the icing on a cake.

Their abilities lead them to be feared among all the factions. In the Great war Uzumaki were ruthlessly hunted by both angels and fallen angels. They were even betrayed by some devils. Uzumaki no matter how great they were couldn't last against against entire factions and by the end of Great war only the daughter of leader Arashi Uzumaki was left of a once great clan.

After the death of four Great Satans and the God of Bible the war ended and a pseudo peace was established. The descendants of Great Satans thinking they could conquer all factions wanted the war to continue. Many wise devils understood that further war would only lead to their extinction, rose against the descendants. Devil were divided among two factions. Those who wanted war joined the Old Satan faction while those who opposed it formed an Anti-Satan faction.

Kushina understood what a war was capable of and wanted no more of it so she chose to side with the Anti-Satan faction. A civil war among the devils erupted.

The war finally ended with the defeat of Old Satan faction and the names of four Great Satans became titles. Seven people on basis of their battle powers and intelligence were elected to become rulers of underworld. These were Sirzechs Gremory, Grayfia Lucifuge, Ajuka Astaroth, Falbium Glasya-Labolas, Serafall Sitri, Kushina Uzumaki and Minato Namikaze.

Minato even though a half devil rose through the ranks and became the fastest devil alive earning the moniker 'Yellow Flash'. His use of his self made technique the legendary Hirashin to wipe entire battalions earned him the reputation of a demon on battlefield. It was speculated that Minato was most suitable for the title of 'Lucifer'. The elders of many pillars who did not wanted a half devil to rule them opposed it greatly, things escalated quickly and it was feared that another civil war was imminent. Minato not wanting to be the cause of a civil war withdrew his claim on the title. As a result Sirzechs became 'Lucifer', Ajuka became 'Beelzebub', Serafall became 'Leviathan' and Falbium became 'Asmodeus'.

Grayfia was beaten by Serafall in a duel for the title of 'Leviathan' while Kushina who had no interest in ruling bigoted idiots withdrew her claim and instead married Minato. When her friends confronted her she claimed that she didn't had the patience to deal with elders and that they were better as leaders. She claimed that she would rather make sure that the Uzumaki clan continued as it was her duty as the last Uzumaki to make sure the will of Uzumaki was passed to her children.

Years passed and underworld became a stable place. Devils rarely conceived children so to rejuvenate their declining number, Ajuka created the chess piece system which allowed devil to reincarnate other factions into devils. Since the chance of getting pregnant was really low Kushina was unable to conceive a child for many decades. Finally she became pregnant which were some of the happiest moments of her life. Unfortunately her happiness was short lived as Minato admitted that his life was nearing its end due to the strain caused by the use of hirashin which was much worse than anyone could have speculated.

Through pure will Minato was able to live to see the birth of his child. Upon birth Minato named his son Naruto by tying a small three prong kunai necklace to his neck and died soon afterwards. Kushina was very weak from childbirth knew she wont survive, so she asked Sirzechs to take care of her child. Sirzechs was named Naruto's Godfather while Serafall became his Godmother. Sirzechs took the newly orphaned Naruto to live in Gremory castle as he became a big brother just few months later. His new sister Rias became the heir to the Gremory Clan.