Fate Stay Night /Date A Live

Fate Stay Night is Property of Type Moon

Date A Live is property of Kōshi Tachibana

WARNING! Rough Grammars ahead! You have been warned!

Prologue

+++ Different plane +++

Gaia also known as Earth, called Terra by some, was dying and humanity was the caused. There was a time that they, Gaia and Humanity, lived in harmony with one another, working together, they respected it and in turn it provided for all their needs.

But then, Humanity got greedy, they got violent, they take and destroy what they want or don't need. They were wasteful, spiteful, and aggressive. Gaia tried to work in harmony with humanity to care and provide for them but all of it's effort were wasted on such greedy selfish parasites. Why then must humanity insist on consuming more then they can use , why must they use magecraft to poison it?

Why can't they be content?

Even Gaia best hope to curb humanity was all but gone, the Crimson Moon and his children have failed it. They were suppose to bring balance back to the planet, to prevent humanity from going out of control but humanity being who they are even manage to poison the Crimson moon children with their hatred and greed.

Was this it for Gaia it pondered? Was this all for naught? Will it die this slow and agonizing death as Humanity continued to crawl and consume it carcass for their greed? Does it matter anymore?

Alaya already betrayed Gaia by siding with humanity, instead of working together as one Alaya chose to work in the best interest of humanity. Selfish.

For a time, Gaia thoughts halted, unmoving as it accepted it's inevitable death. Gaia was tired, maybe when it die humanity will die too. What a delicious irony that would be, that in killing Gaia they killed themselves but humanity have proven to be resilient there was no guarantee they would die with the planet.

No. No. No.

It will not die quietly.

Suddenly Gaia realized there was still one path to stopping humanity from killing it, to give the planet time to recover. The solution was simple, if humanity was like a cancer then it would just have to get rid of it. All Gaia needed to do was exterminate them, once they are eradicated they can no longer harm the planet and over time it should be able to return to it's previous state.

Gathering it's Will, Gaia did something she have not done for a very long time. Create a Divine Spirit. Only this Spirit will be different, not single purpose like the Crimson Moon children nor like it's previous creation the magical beast. It will give them the ability to learn, to feel, to think but all toward one goal. The death of humanity.

***** 30 years ago, Border between Mongolia and China ****

Lord Bartlett, sniffed disdainfully at the gathering group here today. He was here as a representative of the Clocktower along of course with a small contingent of mages should he run into trouble.

Still whatever the Atlas Academy wanted it sounded urgent as even the bastards form the Sea of Estray here, a loosely affiliated coalition of mages, not on the scale of the Clocktower of course but then again, who was? Still he been waiting and watched as each side have brought a sizable force to bare at this summit meeting.

"Well?" Bartlett said bored. "Why are we here?"

"Waiting on the last group now." Itkusa from the Atlas Academy said as he felt the final presences group arrive.

"The church?" Bartlett spat out in disgust. "What are they doing here?" He said pointing at the small group of priests' arriving.

"We would like to know the same." A strong chin man in his priestly robes said as he glared at Itkusa.

Most know that the Church rarely dealt in magecraft, instead they prefer to use weaponry and skill base on their scripture. It was effective but by magus standard too limiting.

"Good." Itkusa said as he nodded and looked at the assembled group. "As you know the Atlas Academy mission have always been to preserve the world we live in." He started and watched as the other mages around him nodded.

"Yes your noble cause." Bartlett scoffed. A waste if there ever was one.

"We have found something that might be of interest to you all." Itkusa said and saw the other mages interest pique.

"Oh and what would that be?" The church representative asked with his arms folded against his chest.

"Here..take a moment and feel with your magi senses, don't this area feel different? Saturated with energy? " Itkusa asked as wave his arm to encompassed the entire area.

Bartlett took a moment and felt around with his magi sense as instructed and to his surprised, felt that the very air around him charged up in response. This was not how it was suppose to be. "What -"

"What is this?" Orthora, a dark skin woman from the Sea of Estray group asked. "It feels..overbearing..." She said as the feeling of stuffiness permeated the area. "Yet familiar somehow."

Itkusa nodded and looked at the surrounding people. "I believe we are about to witness a momentous occasion." He said gesturing to the air around him.

"What are you talking about?" The Church representative asked.

"Don't you feel the heavy oppressive air, the pained of the very earth itself?" Itkusa said looking at the mages around him. "Gaia is about to give birth."

The news stunned every magi present. Gaia have not created any new mythical creature for quite some time. What was going on here?

"Then what do you want us to do about it?" Orthora asked. Already she looked to her apprentice, a younger man in his early twenties who was taking down the information.

"Capture the new Divine beast and study it." Itkusa said. "The Atlas force by ourselves does not have enough strength to do it, that was why I requested additional help. Everyone will get a piece of it's carcass to study to their heart content." Left unsaid was by studying the Magical Beast, maybe they can find better way to prevent this planet death. Maybe with this creature they can communicate with Gaia itself.

The other magis around nodded in understanding. To capture and research a divine beast from Gaia, that would be wonderful a true boon to magi works everywhere.

"What you magus do is your own concern why are we here?" The Church representative asked looking down upon the assembled magus.

"You think taking down a magical beast is a small feat?" Orthora scoffed. As always the Church only think for itself not the research that this could uncovered.

"Your Cardinal has approve and he would get a piece of the magical beast." Itkusa replied. Truth be told he was surprised when the Cardinal accepted their offer during their correspondence.

"Hmph." The Church Representative said noncommittally. Still it was an order from the Cardinal so he had to do as he was told.

"Ah, the moment comes." Itkusa said he stared off in the distance.

Bartlett felt the area around him supercharged with power as a the sky seem to droop down toward the ground. "What?" He said as the mages looked on and witness the sight.

However the moment the blue of the sky touched the ground a black ball of energy formed and started spreading outward at an alarming pace.

The mages in attendance could not react in time as they were killed instantaneously. Of course the mages wasn't the only casualty as within minutes one hundred and fifty million humans was killed before they even knew what happened.

Gaia war with humanity have begun.

TBC...

AN: So after getting ripped due to my lack of in-depth knowledge of FSN by Nasu purist. I decided scrap the previous story Fated Date as what I had plan did not mesh. Still, it was a challenge to me as I want to write "correct" fics and not occ. So I poured over the available data and learned as much as I could. Big thanks to Weird Kid who clarified major plot points and major scales of weapons and what not for me. Thanks to his help and our discussion, I found a way to actually make the FSN/DAL cross over work. At least it works to me as I am still observing both side and trying to remain true to the source material at the same time. Of course there will be some different moments as a Shirou with Kotori from the get go should be different. Likewise the meshing of the two will be slow but I think I was able to reach a happy medium thanks again in part to Weird Kid knowledge about clarifying some things for me.

Also special thanks to Warden Nixx who agreed to help clarified some things.

Still , learning about Gaia, Alaya, Crimson moon, other mages associations, True ancestor, dead apostle was a lot more then I expected as the FSN was still one part of it.

The only thing that a lot of people can't seem to decide on and appeared to be divided upon was Gilgamesh EA attack. Some said it can actually destroy the planet itself while other said it destroy a world aka Reality Marble killer but can also damage the surrounding area. There was no clear winner in the debates I have researched online as from what I heard, if Gil was ever a threat and can destroy the world Gaia would have erased him. I also found out UBW was not as OPEd as I thought it was just oped again Gil. So that gonna be fun to work with now.

Going forward from here , I believe that since the spirits in DAL called upon angel names that can be their "mystery" for the nasuverse fans. I also see can also see Kurumi as a magus killer and part of the 10,000 people she killed the majority would be magus, naturally only the weak outer fringe one. Think Dead Apostle hunting after True Ancestor type of deal.

I am thinking of maybe the battle of the sisters with Illya +Beserker vs Kotori and Kurumi vs Archer as Archer being a counter guardian should hate any Spirit off the bat.

I am still playing around with the idea but now that I understand the rules, should be a lot cleaner fic.

As always C+C welcome, Reviews appreciated :D