Disclaimer I in no way own any of the franchise I am writing of. Fate/Stay Night is the property of Type-Moon and Highschool DxD is the property of Ichiei Ishibumi.

"Raaaaaaaaaaaaahhhhhh" with a final roar the giant dragon gazed back, his great sharp eyes resolute as he looked at his comrades escaping the crumbling kingdom in the sky. His allies, his partner, the girl who housed the soul of the one he loved looked on amazed at what he had become.

They had won but his duty was not over he promised her, they could not stop the wish of Amakusa but even if they could for as long as the grail existed there where those who would seek its wish granting powers. So he would take it and hide protecting it for all eternity as he waited for her to come to him.

In a place where no man could seek it, the world of myths and legends separate yet the same, the reverse side of the world where the age of gods had yet to end and and no humans existed for the grail to invoke the immortality and stagnation onto.

So with giant wing beats he ripped through the air, entering the multicolored destructive void in order to reach the realm of the phantasmal beasts, while still dragging with him the radiant greater grail.

Disappearing from the world forever.

Bursting through the void he reached the reverse.

Though Sieg himself had never experienced it, he could truly tell that this world still existed within the age of the gods from Fafnir's memories. The mana within the air was so much richer than the surface world. He could feel feel it empowering him and his dragons blood.

Slightly distracted by the intoxicating feeling of the mana rush he looked around. Before suddenly being shocked still by the sight before him, even though he was still flying in the air. He even nearly lost his grip on the grail in his surprise.

As towering before his eyes was a vast metropolis.

And looking down below, weren't those people pointing up and staring at him.

At this Sieg nearly actually dropped the grail, which really would have been bad such as nuclear bomb in populated city bad. Except without the pollution as the greater in the most literal terms was just a container holding an incredible amount of extremely pure prana.

Which probably would explode if he dropped it.

'Well in good news Amakusa wish does not seem to be activating on these humans', Sieg thought as he quickly flew away. Though not before thousands of pictures and videos were taken of the mysterious dragon appearing in the sky and would soon populate the wide media for many weeks to come.

And done. So this is my new story, I know this chapter is not very long but it's more of a prologue and to see people's response to the idea. So please read, enjoy and review especially if you liked the idea and would like to see Sieg's adventures in the world of DxD.