Disclaimer: Fate/Stay Night is property of Type-moon, RWBY is property of Rooster Teeth Productions, LLC. This work is purely fanfiction and as such earns me no income.

*May receive some edits in the future and maybe additional dialogue.

*Fresh post. May have more than few mistakes here and there. Will update with corrections in several days or so.

At Radix Book Café, Teams RWBY and JNPR had finally managed to meet up with their respective charges. Team RWBY's group was on the 2nd floor of the café, while Team JNPR's was settled on the 1st floor. It was decided so, since there would be too many people to get anything done, and it really wasn't a joint assignment anyway.

It turned out to be a very good decision because the groups were already having a bit of friction between the students.

As the team leader, Jaune wanted to start out introducing themselves. "H-Hi, m-my name's Jaune Arc, and I'm the leader of Team JNPR who'll be helping guide you," he stuttered out nervously.

Pyrrha, not wanting to leave Jaune to talk by himself, decided to introduce herself as well. "Hello everyone, my name is Pyrrha Nikos, and I woul—"

"Hey, Jaune," Nebula of Team NDGO, had ignored the talking student and made her way to the leader of Team JNPR. "You're kinda cute. Why don't you tell us more about yourself?" She was followed by the rest of her team who also seemed quite interested in the boy.

"O-oh, w-well… I… uhm…," Jaune had trouble finding his words as the girls from Team NDGO got too close to for his comfort, a feeling that Pyrrha shared a bit more strongly. "I'm not really all that interesting."

"Really?" asked Dew. "Because you seem very interesting to us." A glint in her eye and the smile she gave him certainly proved that to be true.

"Ahahaha…" Jaune could only laugh nervously, as he was unaccustomed being the center of attention from a bunch of girls.

Having had quite enough of this attention on her man, Pyrrha slammed her hands on the table, which got everyone's attention, including that of Nora and Ren who were getting along quite well with Team ABRN on their introductions. "While it is very good to see everyone getting along nicely, I believe it would be better if everyone got back to their seats so we can make proper introductions," she said with a twitching smile at the girls.

Team NDGO didn't really like that and refused to back down.

"Why should we?"

"I'd like to hear more about what Jaune thinks."

"It would be nice to get to know the leader of the team who'll be helping us, right?"

"He could speak for himself if he wanted to, so I don't think you should be butting in."

Things seemed to have gone downhill rapidly, with Pyrrha getting into an intense stare off against Team NDGO, whilst the rest of Team JNPR and ABRN were set aside quietly spectating the ticking time bomb. It was, however, fortunate that the arrival of their food got everyone distracted from the current situation.

"I apologize for your orders coming a little bit later than usual," said the tall, dark, and handsome man dressed as a chef. "We have a lot more customers today than usual, and most of the staff is busy, so I hope all of you are fine with me serving you your food for now." In a quick and professional manner, he laid out the fresh and steaming plates of food all over the table. "If you have any complaints about the food, please do not be discouraged, and inform me immediately," he said before he bowed politely and took his leave.

Pyrrha gulped down her saliva at having seen the delicious food and quickly remembered to stare back at the group of girls that had been getting on her nerves, only to find that those girls were salivating as well, and they had not been staring at the food like her.

All four girls wore a blush on their cheeks and were busy staring at the broad back of the chef as he walked away back to the kitchen. It was clear that their sights were now fully away from Jaune and had acquired a new target of interest.

"Who was that?" said Octavia, almost swooning.

"A total hottie," answered her teammate Gwen.

"Did you see the muscles on his arms?" said Dew. "I bet he works out a lot."

"Now that is what I call a man," smirked Nebula. "He's exactly my type."

"I think he's every girl's type," Octavia said dreamily.

Pyrrha had far less of an agreement with that. "You can speak for yourselves on that." She was just glad that she would have less competition for Jaune now.

Once the cook was gone from view, Team NDGO had been able to sample the food that they had ordered. They had squealed in delight and praised the chef about as much as they praised the food.

"So…" began Nebula as she came up close to Pyrrha. "Since we're not after your boyfriend anymore," she whispered, which caused the red-headed warrior to blush. "Can you tell us the name of the guy that just came by?"

Pyrrha was unable to answer since this was also the first time that she had seen the man. The only cooks she'd seen before were Sakura and Rin, and that was only because they switch between cooking and working as maids from time to time. Fortunately, someone else on Team JNPR seemed to be in the know.

"You guys are talking about Shirou, right?" piped Nora.

"How did you know that?" said Pyrrha, quite surprised. She was fairly sure that Nora had not met the guy before either, and the same could be said for Ren and Jaune.

Nora slurped down a mouthful of her pasta before answering, "Of course I know his name, silly," she said proudly. "It's a vital information that everyone should know." Everyone around her but Ren looked confused by the statement.

"She means knowing the names of the people who handle your food," cleared up Ren with a sigh. "She's actually very good with that, so you can rest assured that the name she said was right."

Suddenly, Team NDGO crowded the eating Valkyrie.

"Do you know anything else?"

"What's his favorite color?"

"What type of girl he likes?"

"Is he single?"

A barrage of questions assaulted the poor girl who had been peacefully enjoying her pasta. Nora was as overwhelmed as Jaune was a while ago at the sudden attention.

"I-I don't know!" pleaded Nora in distress. "I think he might be with one of the maids here."

"Are you sure?!" said the NDGO girls in unison, as they pressed closer down on the girl.

Team JNPR seemed to have their hands full with their current assignment. It wasn't only them, though, that were having problems. A floor above them, Team RWBY was also having a few disagreements of their own with the visiting teams. Their introductions were also far from pleasant.

Apparently, being a fellow Atlesian, hadn't helped Weiss at all with getting along with the two members of Team FNKI.

"What did you just say?!"

"Like I said," Flynt Coal smirked at the irate heiress. "It's too bad all that money can't buy you skills."

The argument seemed to have started after Flynt found out the reason why Team RWBY ended up as their guide. He didn't hold back on criticizing the Beacon students for failing to catch a bunch of common thieves.

"Hey, we're supposed to be getting along here." Yang held motioned her hand to stop Weiss from getting up her chair. "That's what the Vytal Festival is all about, right? To foster cooperation and trust between the people of Remnant."

"Flynt, she's right, you know?" said his teammate, Neon. "Save it for the tournament and just chill out a bit."

The fedora wearing young man grunted his response but not before giving a cold stare at the Schnee heiress. However much he seemed to dislike the girl, he did still treat the other girls of the team a bit better.

"What did I ever do to you?" asked Weiss, clearly agitated by the negative reaction towards her.

"The question is," said Flynt. "What your company did to my father." He replied testily. "Your company ran his little Dust shop out of business."

Weiss seemed completely taken aback by that. "Oh… I'm sorry…."

Flynt just ignored the apology and didn't seem intent on speaking any further with the girl.

While there had been some animosity from the others, Team SSSN and Penny were far more cheery towards Team RWBY. In fact, Sun had already taken to flirting around with Blake, who for some reason was not entirely displeased by the attention from the boy. Both seemed to get along quite well, in fact.

"Hey there," smiled Sun at Blake. "I'm really looking forward to you showing us around."

"Y-yeah, sure." The girl blushed slightly.

Ruby and Penny were giggling whilst talking amongst themselves. They've only known each other for a short while, but the two really got along well together. Penny's teammate, Ciel, however, looked a bit more impatient, and kept staring at the time and tapping her foot on the floor.

"Hey, got a question for you." Neptune, who had been daydreaming ever since they got there, approached Ruby. "Do you guys know anything about Medusa?" he asked seriously.

"I'm not particularly close to her," answered Ruby. "Blake's friends with her though, I think."

Having heard her name mentioned, Blake looked over from where she and Sun had been talking and raised a queried brow.

Neptune saw this and immediately asked desperately, "Do you happen to know the guy she's interested in?"

Blake frowned at the boy. "I don't think that's any of your business."

"But it is!" declared Neptune. "I want to know who I'm competing with for one of the most beautiful women I've ever laid eyes on," he said so with a smitten look. "I'll show her that I'm a lot better than him and she'll come to me, and we can go off riding out into the sunset while holding hands."

Blake snorted at that. "Good luck with that. The guy she's interested in would be pretty hard to beat."

"Hey, I'm cool. Have you gotten a good look at me?" He posed with his trademark smile, showing off his every feature. "What girl could resist my charm?"

"If that's all you've got, then you're going to have to try a lot harder than that," smiled Blake. "Medusa is a woman who prefers a mature man who looks and acts like one, not boys like yourself."

"No way…" Neptune fell, downhearted.

"Hey, it's okay," said Weiss to cheer up the boy, a mild blush on her face. "I'm sure there's plenty of girls who would fall for your charms."

"There won't be anyone as pretty as her though," said Neptune.

"Then how about we just carve out that worthless broken heart of yours?" All traces of the blush on Weiss' face was gone now and replaced by a smile that promised dread. "I'm sure it will help ease the pain your feeling."

"Uhhhh…"

"Woah, woah there, Ice Queen," interrupted Yang. "Let's not start killing off our assignments this early." They really needed to try better at fostering cooperation here. "Why don't we start things off again after we've eaten our fill? It should make everyone feel right at home here, and I think I see the new girl coming up with it right now." She saw the short skirted blonde maid from the corner of her eye as she said so.

True enough, as soon as the food had arrived, the students had become much more relaxed and the earlier tensions all gone. Everyone was busy enjoying the wonderful meals, which made for a good time for them to make small talk with each other and get along well. The only exception to this was Neptune, who had been crying face down on the table but still kept shoveling food into his mouth.

"I can't believe she has someone too…" The boy had tried to hit on the maid as well, as soon as his plate was laid out in front of him. Of course, he was rejected, and quite firmly to boot. Apparently, most of the people at café were already taken.

"Better luck next time, amigo," Sun said and gave him a slap in the back.

"Are you confident this will work, Rin?" asked Saber at the magus in her arms.

She and her Master were traveling at great speed towards a certain location away from the City of Vale. Rin was cradling a small pouch of Dust crystal in her hands while she herself was being carried by Saber. They had set off on their journey earlier that morning and we're almost about to arrive at their designated point.

"Don't worry," said Rin, confidently. "Illya and I worked out all the bugs out of it and should work as intended." She said so in a smug and pleased manner. "All I need to do is gather the data on the results so we can work on enlarging the effect. We've already seen that this works with our small tests at home, so there shouldn't be any problems at all with this one."

Saber frowned unsurely, regardless of the assurances given by her Master. She would have preferred to have another Servant with them just in case, however, Rin had insisted that they would be far enough away from any of the locals to cause any problems. The only ones who would be there to witness them would be the creatures of Grimm that crawled all over the area.

Both the girls were moving too quickly for the spread out creatures to come close enough to get anywhere near them as they travelled. Some of the monsters did try to chase them, but was left behind in a moment by the superior speed of a Servant.

"We're finally here," said Rin as she saw a small clearing devoid of Grimm.

Once there were no longer obstacles to maneuver out of the way, it became easier for Saber to reach the center of the safe zone. It didn't take long until they finally arrived at the middle of it and landed a few feet away from where a lone stone pedestal rested.

Rin got on her feet and came up to slowly inspect the stone furniture. "Good," she nodded to herself in approval. "It doesn't look like there's any problems on this end. The Dust crystal are stable and still strong, even after sitting here for a few weeks now." She took out more Dust crystals from the pouch she brought and began making modifications to the formalcraft circle engraved on the device.

Saber watched the surrounding area vigilantly for any signs of danger as her Master worked on modifying the Bounded Field that had been placed on this area.

"Okay, I think that should do it," said Rin as she wiped the sweat off her brow. "Time to get on to the real work." She took out a small blood red Dust crystal that glowed ominously dark from inside the pouch. "I'm not really happy turning such a perfectly good Dust crystal into this, but there really is no other choice if I want to make sure of the results of the Bounded Field."

As the top class magus explained to everyone else before, the Bounded Field that they had successfully made before was only the beginning. Its original design was to repel all the creatures of Grimm within its sphere of influence. Unfortunately, the flaw was that the creatures would start amassing near the end of the barrier when there was something attracting them from inside. This case was proven to be on point during Archer's observation of the incident with the students at Forever Fall Forest.

The Grimm, Rin had researched, were attracted to the negative emotions and also attacked people on sight. The new Bounded Field was made with the intention of masking the presence of anything within it, rendering anyone inside, practically invisible to the creatures even if they were inches away from each other.

"A little bit of 'All the Worlds Evil' packed into a small crystal," said Rin. "Now let's see if any of this leaks out."

Saber turned and stared uneasily at the crystal her Master held between her fingers. "Are you sure this is safe, Rin?" she asked once more. "Should we not at least wait until Rider joins us before you start this?"

Once Rider's shift was over at the café, she would come and join up with the two to begin dismantling the device and proceed to haul it back with them. It was much too valuable to leave behind, given the number of quality Dust crystal it held, and an evidence to the presence of their magic.

Rin sighed. "You worry too much Saber," she said, then started the incantation that would release the negative energy that had been bound inside the Dust crystal.

"Ein Riss zeigt sich, dann sinkt Dunkelheit herab."

The crystal pulses in dark red energy before it shattered, sending waves of power into the surrounding vicinity.

Satisfied with the reaction, Rin huffed proudly at Saber. "I told you everything would go as planned. The energy should have been contained within the Bounded Field and the Dust crystals on the pedestal should be perf—," She froze from her speech as she had just now noticed something about one of the Dust crystals she had placed.

"Rin?" queried Saber at the sudden pause of her Master. "Is everything alright?"

*RAAAAAWWWWWR!*

The roaring and growling of beasts permeated the air, sending scores of birds flying off into the skies and away from the area. The united thundering noises of their howls of rage could be heard from miles away. It was obvious that the creatures of Grimm had more than felt the energy that was supposed to have been blocked by the Bounded Field.

"I… seem to have messed up," smiled Rin in complete dread at her Servant.

Saber was not happy with that news. "What happened, Rin?"

Rin looked away in shame from those strong accusing eyes of the King of Knights. "I might have… brought a wrong piece of Dust crystal and used that on the Bounded Field…" she answered in a mumble.

The barrier had encompassed a larger area than before and had only a few trees here and there. This was why Saber could easily see the number of different Grimm had now begun on gathering around near its perimeter. Fortunately, it would seem that the effect of the Bounded Field was still able to repel them.

It was unfortunate, though, that there were a great deal many of the creatures now blocking their way home.

"Rin," said Saber. "We should leave now before they become too many. It will be difficult for me to fight them while protecting you."

The magus, although slightly depressed due to her mistake, was still completely calm about the situation. There was no need to panic anyway since they weren't in danger from the creatures due to the Bounded Field keeping them at bay.

"I can't believe I made a mistake on this," sighed Rin to herself before addressing Saber. "It's okay, Saber. Just grab Shirou and Rider and tell them to come here and clear out the Grimm. I still need to check the Bounded Field for the effects of what happened and record it so we can still salvage the test results for the project. We also still need to dismantle the barrier later, and me going with you out of this place, will just put me in more danger. I'll be a lot safer staying here and just wait for your return with the rest."

Saber was not pleased with the decision of her Master. "I don't think I should leave you alone in this situation," she argued.

"It's fine, I'll be alright," Rin assured her companion. "There's no people anywhere near this place since we're only a few miles away from that abandoned city here. We'll have plenty of time to clear everything out here properly, once you arrive with Shirou and Rider. Besides, I need to gather more data on the Grimm anyway, so this time should prove useful."

The casual way her Master said so, made it seem like it was the same kind of hassle when feeding a bunch of pigeons and not closely observing dangerous creatures that could potentially tear the girl to shreds.

Saber sighed.

Sometimes she wondered if Shirou might actually have been the most normal Master of all the Grail Wars. "If anything happens, please do not hesitate to use your Command Spell to call me to your side immediately," she reluctantly said.

Rin looked closely at the slightly worried face of her Servant and smiled. She came up close to Saber and gave her a small kiss on the cheeks, causing the Servant to back away in surprise and blushing madly.

"W-what are you doing, Rin?!"

"Oh, nothing," teased the girl. "I just felt like giving you a good luck kiss to send you on your way." Her smile grew wider. "Shirou was right when he said you look adorable when you're worried for your Master."

Saber felt her face turn red and hot. "I-I s-should go now!" spluttered Saber through her embarrassment. Clearly, she still felt the touch of Rin's soft lips on her cheeks. "I shall return quickly with the others!"

The Servant ran away quickly towards the direction of Vale, not turning back at all to wait for an acknowledgement from her Master. It would seem she was unable to bear staying there any longer.

"Fufufu…" giggled Rin. "Not even waiting for me to talk, huh? Such a cute Servant I have, don't I?" A dreamy expression ran across her face. "As her Master, I will have to make sure to… punish her appropriately later."

The Servant, who had been running at full speed, felt an ominous chill run down her back, which caused her to run at even greater speeds than before. It was lamentable, but no matter how fast the King of Knights ran, there would be no escape for her from what's to come.

High in the skies of Remnant, an airship from Beacon Academy flew steadily as the passengers aboard it observed the surround area below them. Professor Bartholomew Oobleck and the pilots scanned the ground below them and were agape at having seen a surprising amount of Grimm traveling from Mountain Glen congregating towards a location a few miles away.

The pHd professor had been in the general area, hoping to scout out Mountain Glen for the upcoming student mission assignments. He had not expected at all to see such an extraordinary event happen, especially not during the semester break.

Another cause for surprise was that they found out that the sea of Grimm had fully encircled an empty area but kept from getting inside of it. There was not a single Grimm inside of it. Only outside of the circle did the Grimm moved about, pacing back and forth as if unable to break an invisible wall that is blocking them from their prey.

"What on Remnant is going on here?"

The professor was astounded by the sight and was unable to think for a minute while he stared at the mysterious phenomena. A sudden memory popped in his mind of a similar event that had happened a while ago. "Get me the Headmaster on the coms," he ordered the pilot. "We're going to need some backup for this."

"So, any idea what's going on?" Sun whispered to Blake.

Teams RWBY, JNPR, and all the students they had been guiding, were gathered next to the airship landing pads. Professor Goodwitch had come up to them in a rush, apparently having announced throughout the entire school for any and all available students to immediately report to her immediately.

Blake shook her head. "No clue," she said. "I'm pretty sure we haven't done anything wrong, at least… not yet."

The Beacon students had planned out the day to tour the entire school with their charges. Since the semester break would leave the school somewhat empty, aside from the necessary staff, they had thought that it would be a lot easier to show the foreign students the facilities of Beacon Academy.

"Students," began Professor Goodwitch. "I know you are currently on your semester break right now, but a sudden mission has come up that requires our immediate attention." Her usually stern voice was laced with a bit of unease and excitement. "Just a few minutes ago, we had received a request from Professor Oobleck for assistance. He had spotted an unusual amount of Grimm traveling through an area and decided to investigate. The good doctor had concluded from his observation was that the phenomena was similar to the one that had occurred at Forever Fall Forest field trip before."

Teams RWBY and JNPR broke the silence and started speculating to one another of such an occurrence. They had directly experienced the strangeness of that time and still talked about it from time to time.

"They found another place without Grimm can't enter?"

"Where is this one at?"

"I wonder if they saw anymore weird statues."

"I'd love to take another photo with Mr. Bear!"

The chatter between the Beacon students left the rest of the students confused at what they were talking about. Only the Beacon Academy students were aware of what had happened back then.

"All right students, settle down," commanded Professor Goodwitch. "I'll be brief with this, since we have no time to spare. Even though your missions aren't supposed to start until next semester, the school has decided to see this as a fully sanctioned mission." She said to the surprise of her students. "While this mission would usually be only given to the more senior students, we don't have the luxury of waiting for them to arrive. You will, however, be directed by two of your professors on this mission. That would be me and Professor Oobleck who will be waiting for us on site."

Ruby raised her hand to ask a question.

"Yes, what is it Miss Rose?"

"Will we be killing Grimm?"

"The nature of the mission is to investigate and secure the area," answered the professor. "We are also to collect any and all materials that may have any relevance to the phenomena." Ruby slumped in disappointment after hearing so. "However, afterwards, once the situation is more stable, we may be given the orders to start hunting down the Grimm." The red hooded girl perked back up at that.

The next student to ask a question was Jaune. "Uhm… how soon will we be leaving?"

A few airships appeared and landed in front of the students in only a few seconds of the boy's question.

"We are leaving as of right now!" shouted Professor Goodwitch at the students over the sounds of the engines behind her. "Everyone start boarding and prepare yourselves!"

Without delay, the students started occupying the airships that would transport them to their first ever school mission. Watching the airships fly away from his office, the Headmaster of Beacon Academy stood with a rigid posture. The beep of the electronic screen on his desk grabs his attention.

As soon as he answers it, the face of his dear friend General Ironwood shows up on it. "Ozpin, I heard what happened! I'm on my way back right now!" said the man. He had been busy conducting the preparations needed for the arrival of his fleet at Vale, but he had dropped everything as soon as he heard the news. "I'm on an airship back to the academy as we speak. How's the situation with the Oobleck?"

Professor Ozpin was a bit calmer than his friend. "Since last I contacted you, the situation has changed for the good doctor. He was forced to land inside the center of all that chaos due to the arrival of a flock of Nevermores that threatened to take down his airship when he got too close to observe. I've already sent Glynda and all the available students we could spare at the moment. They will secure the area as soon as they arrive."

"Will they be enough?" questioned Ironwood.

"While there is a rather substantial amount of Grimm on the ground," said Ozpin. "They should be able to handle the Nevermores in the sky before they land and give support to Doctor Oobleck. He had assured me that whatever force is keeping the Grimm at bay, shows no sign of weakening and will prevent them from getting completely overrun."

Ironwood nodded at the assessment. "I suppose that is all well and good," he agreed. "But the numbers of Grimm you had said earlier…"

Ozpin understood what made the General uneasy. "Yes, the number is increasing. Whatever attracted the creatures there, we must find the cause. I will be sending more students with Professor Port to the location as soon as possible."

"To gather that much Grimm," said Ironwood with dread. "Such power could be a weapon that may destroy all we have hoped to achieve."

"It will not come to that!" declared Ozpin loudly, uncharacteristic of him. "I will not let it…"

Back where the center of everyone's attention was currently at, Rin had hidden herself, far from the stone pedestal that powered the Bounded Field. She had her back behind one of the larger trees in the area and peeked out at the man who had arrived earlier on an airship. It would appear they had been close by and had been forced to land when some of the flying Grimm had flown near them.

Rin saw the man scan his surroundings before he noticed that large stone pedestal that contained her engraved spell circle and Dust crystals. "Damn it!" she cursed. "First the crystal and now this!"

It would be best if she avoided being seen. Her identity would be at risk and would put the others in the same position as well, if she was recognized.

"Saber," she queried through her telepathic link to her Servant. "Have you reached the others yet?"

"I've just arrived and finished explaining things with Shirou and the rest," came the response. "We will be leaving soon."

"That's good." Rin said. "But I'm going to need you to bring me a disguise before you do."

On the other end of the link, Saber was bemused by the request. "Did something happen?"

Rin wanted so very much to scream out the unfairness of this world towards her, but kept a lid on it since she was still currently hiding. "It looks like one of those hunters had found our little experiment," she said, her frustration leaking through the mental link. "I can't take the chance of him or anyone else seeing me out here and figuring out my identity."

"Understood," replied Saber. "I am unsure of what to bring you though…"

"Just ask Illya for a mask and any one of those costumes she made with Sakura."

There was a short pause before Saber answered back, presumably from talking with the little homonculus, and told Rin that she had retrieved an appropriate disguise for her. Although, for some strange reason, the Master thought she felt some amusement coming from the link from her Servant.

"We will make haste to arrive there as soon as we can," said Saber, perfectly serious.

Rin dismissed her unease at that. "Good," she answered. "We need to fix this mess as soon as we can before things get more out of control."

Unbeknownst to the magus, chaos would only be the beginning of what will happen next for her. Soon, she will come to know the dread that awaits her, for her Servant carries with her the salvation as well as damnation of her Master.

A/N:

I think it's a pretty easy guess what will happen next for Rin.

Also, I don't speak German at all.

A heads up for everyone, I'll be focusing on character development for the RWBY cast to close off and setup a few things in the next few chapters. The Fate cast may not be out in the spotlight for some of those. Oh, except for Illya. You'll see her quite a bit more than the others. I think... maybe. I don't know. It depends on how I feel when I start writing those out.

As always, please read and review. It will help me if you can point out some mistakes in spelling, grammar and inconsistencies as well. Please do try to make constructive criticism.

You can check my profile for updates. A poll is still up on it for potential crossover ideas.