A/N- The idea for this crossover suddenly hit me and I decided to act on it because I thought it would be interesting. It's a little rough and this is more of a test to see if the premise is good. Whether or not I continue this will be based upon the reaction to it. This takes place during season 1 episode 2.

Song lyrics belong to Antigravity by Starset.

Disclaimer- I OWN NOTHING!

Chapter 1

And far below, the carnivores,

Are looking up to where I soar.

Above the clouds, above the storm

Above the Earth I am transformed.

The energy has set me free

And pulled me through the galaxy.

I've risen up beyond the sky

I am awake, I am alive.

(-)

Shirou Emiya woke up to the sound of explosions and gunfire. Which was quite unusual seeing as how the last thing he remembered was laying down for a nap on his couch. He shot up from the cold hard ground that he found himself on and immediately lowered his body into a defensive posture while he scanned his surroundings. He was most certainly not in his living-room as he last recalled being. In fact, he had no clue as to where he was. Scanning the environment he saw that he was on the deck of some sort of ship in the middle of the ocean which was surrounded by even more ships. However the ship he was on itself looked like it should belong in a museum considering its apparent age. It was easily a WW2 era Japanese aircraft carrier. Whats more, it was on fire and in the process of sinking.

"ABANDON SHIP!" someone on a loudspeaker shouted.

Just then a loud screech in the skies above drew Shirou's attention. As he gazed upward his steel grey eyes caught sight of a gigantic metal monstrosity flying in the sky. Shirou's eyes narrowed as he examined the ship in the distance. It was shaped somewhat like an arrowhead and was covered in black and red hexagonal panels.

"What the hell is going on?" Shirou asked himself.

Suddenly he was approached from the side by several men in sailor uniforms. "What the hell are you doing here?!" barked one of the men. "How did a civilian get on board the ship?!" demanded another. "Forget that! Right now we need to get off this ship before it sinks!"

Shirou had no idea what was going on. Was he on the set of some kind of movie? If so, then the men in front of him were taking their roles very seriously. Shirou really didn't want to entertain the thought of the other possibility, that all of this was real.

The small group of men argued briefly before one of them cast their eyes to the sky at the screeching ship. "It's coming around for another shot!" he screamed before turning away in a full on sprint, followed by the rest of his comrades.

Shirou quickly turned around and when he did he saw several beams of red light shooting out from different points on the ship before converging into a single large beam that was coincidentally aimed directly at him. This was most certainly real.

"I am the bone of my sword."

"RUN MAN!" one of the sailors screamed to Shirou who didn't even budge from his spot. They closed their eyes and said a silent prayer for the poor man who was about to meet his end.

"Rho Aias!" Shirou shouted as he held his hand up towards the beam and produced a pink translucent shield that was shaped like a seven petaled flower. The beam collided with the shield with great force, forcing Shirou back a few inches, but held strong none the less. After a few moments of sustained fire the beam dissipated into nothingness, at which point Shirou cast away his shield.

Meanwhile the sailors looked on with mouths agape at the recent development. A man had just produced a shield using magic and stopped the beam attack.

"He... he's like a witch..." one of the sailors barely managed to breath out.

"Amazing..."

Shirou then ran a hand through his prematurely whitening hair before letting out a brief sigh. He then turned his attention to the sailors who were returning to his side. "I take it that we need to shoot down that ship."

The sailor with the most composure spoke up. "Yes, the witches are currently engaging it in the air in an attempt to destroy the Neuroi's core. But there is nothing that we can do from down here."

Witches? Shirou thought to himself. He then turned his attention back to the sky where he saw two small dots flying around the 'Neuroi' that were obviously in the process of engaging it in combat. Shirou reinforced his eyes in order to get a better look at the dots and what he saw surprised him. Two girls in with animal ears and strange propellered contraptions strapped to their legs were flying around the ship. One was slicing at its hull with a sword -katana, reinforced with magic in order to withstand punishment and cut through hardened targets- and the other was holding a large gun of some sort. Shirou was an expert on swords not guns so he didn't know the exact model of the weapon, however it looked to be in line with the same time period as the ship he was on, so most likely WW2 era. But what surprised Shirou most about the girls was the fact that neither of them were wearing any pants. One wore an officers jacket whilst the other wore a sailor uniform top. The two girls were circling around the behemoth while dodging incoming fire or producing large magic shields in order to defend themselves.

What the hell is going on and where or when am I? Shirou put these questions to the back of his mind for now and decided to deal with the task at hand, destroying the 'Neuroi's' core. However he had no way of knowing what the core looked like let alone where it was. So he decided that the best course of action was to destroy the entire thing.

"Trace on."

In Shirou's hands appeared a large black bow of steel. He then sifted through the Blade Works to find the most applicable weapon for the situation, however as he was doing that, one of the 'witches' shot at the Neuroi and revealed a small red hexagonal orb in the ships hull.

"That must be the core. That makes things easier."

"Trace on."

Shirou reached into the air and grabbed at the newly traced arrow. It was black with edges that curved inward and outward along its length. All in all it hardly looked aerodynamic. He then notched it into his bow and aimed at the core.

"Soar, Hound of the Red Plains, Hrunting!"

Shirou shouted as he let loose the arrow which flew into the distance with incredible speed and smashed directly into the core, destroying it completely. All the while his audience stared at him completely awestruck at what had just occurred.

"H-how did you do that?" asked one of the sailors.

Shirou gave a wry smile as he scratched his chin with his free hand. "It was magic." he said vaguely.

"No, we can tell it was magic, but how are you able to use magic? So far as we know only girls can use it. And you didn't even call upon a familiar for its use."

Shirou raised his brow at this. What did they mean only girls can use magic? And what did he mean by a familiar? In fact, Shirou had a million questions right now and he had a feeling that these men wouldn't be able to answer half of them.

"Perhaps you can direct me to someone in charge that I can talk to. I have a few questions of my own and, no offense, but I think they might be a bit too much for you guys to answer." Shirou said politely.

"You got that right." one of the soldiers answered. "I'm sure that the Strike Witches would love to meet you."

"And who exactly are the Strike Witches?"

"That would be us."

Shirou turned to the direction of the voice and saw several more pants-less gun-toting girls with mechanical contraption strapped to their legs and animal ears sprouting from their heads. The one in front of them was most likely their leader. She had red hair that flowed down her back, appeared to be in her late teens, had amber colored eyes, and wore a green officers jacket for a top.

Shirou mentally narrowed down his list of questions until he was left with the most important ones to ask. He then pointed in their direction and opened his mouth to speak. "How come you lot aren't wearing pants?"

(-)

Commander Minna did her best to take stock of the mysterious person in front of her. Just moments earlier she and the rest of her squadron were en-route to provide support to Sakamoto against the Neuroi, but just before they themselves opened fire upon it, a mysterious projectile was shot from the nearby aircraft carrier which impacted with the Neuroi and destroyed its core. The source of the projectile seems to be the unknown man standing on the ships deck in front of her. He was of indeterminate age with rugged features, had short white hair, and tanned skin. He was currently wearing a red button-up shirt with the collar up, black pants, and a pair of black shoes. In his left hand he held a large steel bow that was black in color which was most likely what he used to fire whatever projectile was used to destroy the Neuroi. As Minna gazed into his steel grey eyes she saw a man who had seen countless battles, someone with years of combat experience under his belt. The man furrowed his brow, no doubt he had something to ask and quite frankly Minna had her own fair share of questions. The man then opened his mouth as he pointed at her.

"How come you lot aren't wearing pants?" he said with a slight blush on his face.

Minna took the question with stride and kept her composure. The same could not be said for the rest of her squadron as she could hear faint giggles and exasperated sighs.

The man, sensing the landmine of a first question he set off, quickly redacted his remark. "Sorry, I suppose I should start with something else. How about a name, mine is Shirou Emiya."

"I am Minna-Dietlinde Wilcke, commander of the 501st Joint Fighter Wing. And judging from the look on your face, you must have quite a few questions, but a sinking ship isn't exactly the best place to hold a conversation." Minna said with a smile. "Perhaps we can continue this conversation elsewhere. I suppose you should make for the life boats before it's too late."

Shirou gave a slight chuckle at her suggestion. "Yeah I guess you're right."

He turned to leave and as he did, the bow in his hand disappeared into motes of light. Minna's eyes widened at this as did the rest of her squads.

"Hmm, Shirou Emiya... just who are you?"

"Commander!"

Minna turned to see Sakamoto flying over to her with an unconscious young girl in her arms who was wearing a Striker Unit. "And who is this that you are carrying?"

Sakamoto gave a smile as she looked down at the girl in her arms. "Yoshika Miyafuji, a promising new recruit."

Some time later on board a nearby aircraft carrier...

Shirou could tell how much he stood out from the strange stares he was getting. And whats more, the news that he was the one to shoot down the Neuroi had spread rather fast. Sailors kept approaching him and asked him various questions that ranged from 'is the story true' to 'can you show us your magic'. Shirou had to politely wave them off as he was waiting for commander Wilcke to find him so that they could talk. She was obviously a big shot in the grand scheme of things and he had some question to both ask and answer. However one of them he could probably figure out the answer to himself. The question of 'how did I get here'? Shirou just had a gut feeling that a certain Kaleidoscope mage was involved in the whole ordeal. Now he just had to figure out the when and where.

Shirou was leaning up against the side of the ship with his eyes glued to the sky, watching for the red haired commander and soon he found her. She was flying with two others who Shirou recognized from earlier although he didn't know their names. One had short blonde hair whilst the other had short brown hair that was tied into small twintails. Shirou watched as they landed with masterful skill and precision. After they landed and hopped out of their flying gear they made their way over to him with Minna in the lead.

"So, mister Emiya, would you kindly follow us to the ships briefing room. I've already informed the captain of our arrival and the room will be empty. The perfect place for a private conversation." Minna said kindly.

"I suppose that's true. Lead the way."

As Shirou followed Minna he could easily feel the hole being bore in his back from the glare of the dark haired girl behind him. She was quite obviously suspicious of him. The blonde however, was yawning and looking like she'd rather be anywhere else. However Shirou knew that in situations like this it would be best to maintain ones composure and remain calm, so he did.

After a short walk and climbing some stairs they arrived in a large room with an elongated table surrounded by chairs. On one side of the room there was a projector and on the other was a large screen.

Minna took a seat on one side of the table and the blonde girl took the seat to her right. She then gestured for Shirou to take the seat across from her, which he did. Then the dark haired girl took the seat to his left, never taking her eyes off of him.

"So" Minna started. "You already know my name and i know yours, but you don't know who my comrades here are." she said as she gestured to the girl next to her.

"I'm Erica Hartmann. Nice to meet you!" he blonde said with a smile and a wave.

"And I'm Gertrude Barkhorn." the girl next to him said curtly.

"A pleasure." Shirou replied.

"Now, we have a few questions for you mister Emiya ." Minna said.

"Please, call me Shirou."

"Hmm, well Shirou, how about we do things like this: You ask one question and then we ask one question, that way it's fair. What do you say?" Minna asked with a smile.

"I can agree to you mind if I go first?"

Minna then opened her palm to gesture to him. "By all means, go ahead."

"What is the current year?"

Minna was confused by his question, but answered it anyway. "1944."

"Hmm." Shirou scratched his chin in contemplation. Minna and her comrades were confused by this. What did he have to think about regarding the date?

"Alright, my turn. Is it true that you are the one who shot down the Neuroi?"

Shirou gave a weak smile as he scratched the back of his head. "If you are talking about that flying menace then yeah, I shot it down. Now, what is the closest country to our current position?"

Minna narrowed her eyes ever so slightly at the man in front of her. What was he playing at asking such questions?

"Are you playing stupid or something, asking all of these ridiculous questions? Or do you just have amnesia?" asked Barkhorn.

Minna raised her hand at Barkhorn's interruption. "Easy there Trude, he is allowed to ask whatever questions he wants." she then turned back towards Shirou. "We are currently off the coast of Brittania. Now it's my turn again. How did you destroy the Neuroi?"

Shirou then held out his hand in front of him.

"Trace on."

In his hand appeared the same arrow that he had used to destroy the Neuroi core. Hrunting.

"I used this." he answered simply. However Minna, Erica, and Gertrude were completely dumbfounded by what he had just done. He had obviously just used magic to create the arrow, but he was a man. How on earth could he use magic?

"Judging from your reactions, and from what I've heard, I take it that in this world only women are capable of using magic."

Minna quickly shook off her shock at the revelation that Shirou could use magic and zeroed in on something he had just said. This world?

"What do you mean by 'this world'?"

Shirou shifted in his seat ever so slightly. "Believe it or not, I'm from a different world. I've never even heard of Neuroi before today."

"Wait, you're from a different world? How is that possible?" Barkhorn asked.

"Well, where I'm from magic is much more secretive and is used by both men and women. And among the practitioners of it there is one person in particular who knows true magic that is capable of transporting people between worlds."

"Wait, 'true magic'? What is that?"

"True magic is any form of magic that can be classified as a miracle. Something that can't be replicated by science. For example; my magic allows me to create weapons, but you can also do so by forging them from scratch."

"Hmm, interesting. So you believe that this true magic user is the one who sent you here?" Minna guessed.

"Most likely yes. Although I haven't a clue as to why he did it. Probably just as a prank." Shirou said as he finished with a groan.

"Well prank or not he dropped you in the middle of a war with an alien race. And I hate to have to ask you, but we need all the help we can get." Minna started in a more serious tone.

"You want me to aid you in the fight against these Neuroi?" Shirou mused.

"I know we have no right to ask you to help us as you are not of theis world, but you could make a huge difference if you joined us. If you join us I will see to it that you are givenb a position fitting of your power and-" Minna was going to go on in an attempt to sway Shirou to their side, but that proved unnessacary when Shirou himself interrupted her.

"Sure, I'll do it." he said with a smile.

"Huh?" Minna was taken aback by his immediate answer that she momentarily lost her momentum.

"What kind of person would I be if I just stood back and watched while people were in danger. If there is something I can do to help then I'll do it." Shirou said with conviction.

"Are you sure? I mean, we only just met and now you are offering to put your life on the line for people you don't even know."

"It doesn't matter. If someone is in trouble, I don't need a reason to help them. It just makes me happy to be able to be the hero. I want to save everyone, that is the way I live my life."

Barkhorn was looking at Shirou like he was crazy, speaking of being a hero for people he doesn't even know in a world that isn't his, whilst Hartmann just grinned.

Minna on the other hand could hear the conviction in his words and knew he was being serious. She smiled at the genuine kindness that the man in front of her displayed. "Very well, I will begin the paperwork to make you an official member of the 501st JFW. It will be nice to get to know you Shirou." Minna then reached her hand across the table.

"You too, commander." Shirou said as he took Minna hand and shook it. "Though I am still curious."

"What?" Minna asked as their hands separated.

"Why aren't you wearing pants?"

Hartmann laughed, Barkhorn facepalmed, and Minna let out a sigh.