A/N: Umm... Crack Pairing? I guess? I really wanted to write a yuri fic featuring my two favorite servants in Fate/Grand Order, and as far as I know Medusa and Scathach have never interacted with each other... I think? So instead, this'll be a AU fic that won't follow Grand Order's storyline, but will borrow some characters and elements from the game as well as the TYPE-MOON universe.

Disclaimer: I don't own Fate/Grand Order.

Hand landing on her smartphone as soon as her alarm rang, Scathach quickly turned it off. Sitting herself up on her bed, the crimson haired woman turned towards the rays of sunlight coming in past the window curtains. "Morning already..." Dragging herself up from the temptations of returning to sleep, she went towards the window. Pulling both curtains open, sunlight instantly filled her bedroom. Looking towards the distant streets, the remnants of last nights rain took the form of puddles across the roads.

"Right then..." Setting a piece of bread into her toaster, Scathach then headed towards the bathroom and began her usual morning routine. Turning the faucet on, a handful of cold water instantly woke up the rest of her brain when splashed against her face. Toothbrush in hand following muscle memory, she quickly cleaned herself up before grabbing her hairbrush. After straightening out any strands sticking out of her long crimson hair, Scathach made her way back to the kitchen, just in time for the toaster to pop out its finished product. Making herself a cup of coffee before grabbing her smartphone, she sat down and started on her breakfast whilst looking at her mobile screen, browsing for anything she missed while asleep. "Hmm... what's this?"

Fuyuki Shinto Train Services Shutdown Until Further Notice!
The station front at Shinto has been closed due to damages to the tracks outside the city. Investigations indicate a pocket of natural gas near the tracks in the mountains leading out of the city caught fire, resulting in an explosion and forest fire. Fortunately, the ongoing rain last night countered the fire resulting in only minor damage to the forest.

"Natural gas? Since when was there anything of the sort near those tracks..." Scathach was slightly puzzled, but if she doesn't hear any mention about this a work later, then that flimsy excuse probably did happen. "Speaking of..." Cleaning up after she finished breakfast, the crimson haired woman quickly got dressed. Grabbing her phone and slipping on her favorite crimson coat, she locked the door behind her as she left for work.

...

Chaldea Services & Consultation, or CSC for short. On the surface, it was just a private company in Fuyuki city that took on jobs like helping to clean public property, looking for missing pets and other generic tasks of the like. But under the surface, they were in charge of dealing with problems beyond the capabilities of the authorities, such problems usually originating from the world of magic, which have recently been growing in frequency. As such, with permission from the Mages Association, the CSC was set up to deal with the situation, and to avoid any and all revelations of magic to the public.

"ALRIGHT YOU LOT! QUIT YAPPING AND LISTEN UP!" Loud yelling filled the entire office building. The origin: Olgamally Animusphere, daughter of the company's late founder and current director. Making her way beside her colleague, Scathach lightly tapped the young lavender haired girl on her shoulder. "Hmm? Scathach-senpai?"

"Mashu, what's with her this morning? She's..." She gestured at the director going off at the other staff. "...angry and... drunk? Or is that Olga's version of a hangover?"

"Ahaha... well... Apparently she went to a mixer with Boudica-senpai and a couple of others last night. Unfortunately no one even tried to start a conversation with her, which led to her drinking angry." Scratching her cheek, Mashu recalled the events from last night when she was called to pick up a really angry and drunk Olga.

"Riiight..." The crimson haired woman continued to observe the silver haired lady make a fool of herself, with Boudica at her side trying to settle her down. Boudica, Olga's secretary and 'Onee-san' of the company. The British redhead has been in the company ever since Scathach joined the company, and is pretty much one of the company's major linchpin. "Why the hell did they go to a mixer anyway? Olga has never been interested in such things, and isn't Boudica in love with her?"

"From what I heard, Francis-san was the one that dragged them along." The lavender haired girl sweat-dropped.

"That damned drunkard wannabie-pirate again?!" Scathach facepalmed.

"SHUSH IT, COW TITS! WE BOTH KNOW THE ONLY REASON YOU GET THEM ALL ARE THOSE NEEDLESS BAGS OF FAT! AND THAT'S ALL THEY ARE, BAGS OF FAT!" Watching Olga go off at her secretary, Scathach couldn't help but feel bad for the redhead. Despite being overly shy when it came to romance, her colleague has made numerous attempts at expressing her love. But Olga, being as dense as dense can be and then some when it came to love, doesn't come anywhere close to picking up on even the slightest hints. It doesn't help that the silver head has one hell of a personality, and is still overly attached to an ex-employee, even though he betrayed her and the entire company during what was now known as the incident.

Watching as the director stormed off back to her office, Boudica then gathered the rest of the staff. "Sorry about that, everyone. Anyway, aside from our usual jobs, we have a couple of special jobs today. A hospital has reported rumors of wraiths sightings again, we'll need to deal with that. We have another request from an enforcer to assist in the capture a murderer magus who recently entered the city and we also just got a call about a preschooler who wandered off into the forest during a field trip."

"Chevalier and I can deal with the hospital wraiths." Marie Antoinette, a magus from France volunteered along with her bestie and sworn bodyguard, Le Chevalier d'Eon, a feminine man/masculine woman/hideyoshi/trap/cross-dressing genderless-person, whose true gender to this day is still unknown to the anyone and everyone who's met her...or him. Even Marie doesn't know, but she treats Chevalier as a lady, so for simplicity sake the rest of the office does as well.

"I don't mind helping out the enforcer, sounds like a dangerous job anyway. I can go with..." Emiya Shirou, the most recent employee who joined after the incident, raised his hand. Joining the company right after high school, the boy was a rare self-learned civilian magus and a practitioner of his very own unique magecraft. His mother is also from a rather prestigious family of magi, or at least they used to be.

"Oh! Oh! Me! Me! Can I come along! I wanna help too!" Another employee volunteered from her seat. Ushiwakamaru, a master of the Tengu Art of War and one of the company's most expert and probably best tactician, which was a little ironic since for all of her insight and wit in combat, she possess a unusual fear towards battle. It doesn't seem to affect her work in the company, and when pushes comes to shove her skill with a katana was unquestionable, so if anything it was more of a quirk.

"If Anjin-sama is going, then so shall I!~" Hugging Ushiwakamaru's arm, another girl replied. "Kiyo-chan! We've talked about this, my name is Ushiwakamaru: U-shi-wa-ka-ma-ru, or Ushi if you'd prefer, not Anjin! And please stop sniffing me!"

Kiyohime, Ushiwakamaru's yandere girlfriend, if that term was even applicable since she acts less like a lover and more like a stalker. They encountered the cyan haired girl while on a job, where she instantly took a liking to Ushiwakamaru, almost like love at first sight. It would've been romantic, if Kiyohime idea of affection was normal and not, what's the word, obsessive? Then again the girl is anything but normal, considering she is of all things a supposed half-dragon. It's never been verified since she doesn't allow anyone aside from Ushiwakamaru to touch her. The only proof there was is the dragon-shaped fire magecraft that she can conjure even from her mouth, and the two almost-natural dragon-like horns on her head. So she probably is half-dragon, if not, then she is really really really good at cosplaying one.

"Right then, I guess Scathach-san will be accompanying me to the forest?" Boudica looked to the crimson haired woman, who nodded in response. "Mashu-chan, since you're the only one in the office today could you keep an eye on Olga for me?"

"Sure thing, Boudica-senpai."

...

Backing the company car into the parking spot, Scathach and Boudica both got out of. "Alright... let's get this over with before sundown. Hopefully the missing kid hasn't stumbled upon the old castle. I do not want to go poking around that house of horrors again." Picking up a few small stones, she drew a few searching runes onto the surfaces before sending them on their way.

"House of horrors? Now now, it isn't that bad."

"I don't see how having a dozens upon dozens of traps, on top of having a crazed mountain man all the way from Greece who's armed with a giant stone slab guarding the place can be call 'isn't that bad'. Shirou's mother needs a different hobby, and a psychiatrist. Anyway, I heard that drunkard Francis dragged you and Olga along for a rather troublesome night?"

"Ahahaha... You could say that..."

"Still no progress on that part I assume?" Scathach asked.

"Yea..." The redhead let out a dejected sigh. "Well, I didn't exactly make any attempts last night so..."

"Boudica, I've seen you make more than enough attempts at a confession, but that idiot still won't notice. I won't tell you to give up, but at this rate Olga'll never know unless you flat out yell it at her face."

"I'm sure it'll work if I keep trying, my feelings for her are true after all. And I'm sure she's still hurting from-"

"Stop making excuses for her, Boudica. We were all betrayed by that scumbag, all of us. Olga has done nothing since that day except live in denial, lying to herself that someone forced Lev to kill her dad when we all know that isn't the case. Ever since his passing you have helped her immensely with taking over and running the company, more than everyone else combined, heck you practically run the company for her. I'll sorry for being frank, but even after all that, if she's that blinded by denial to see your love for her, she doesn't deserve it."

"I know... just..." Boudica paused in her tracks, head down, unable to make eye contact with the crimson haired woman.

"I-..." Scathach sighed. "Look, I didn't mean it like- Sorry... I just don't want you to meet an ending that has nothing but heartbreak, okay? And- Let's... just do what we came her to do and go, shall we?"

"Sure..." The redhead looked up with a smile, but her watery eyes told a different story. "Thank you, Scathach-san. I know you mean well for me, I do."

An hour later, Scathach detected one of her runes having completed its task. Headed towards it's location, they found the lost child, unconscious but fortunately unharmed. Carrying the child in her arms, Boudica heaved a sigh of relief. "Thank goodness, looks like she's fine. Well, mission accomplished. Let's get goin-"

*Bang*

The sound of a gunshot sent birds scattering into the sky. "Was that-" Senses on high alert, Scathach quickly pushed Boudica against a tree before quick-casting a concealment rune. Place a finger on the redheads lips to ensure her silence, her attention was directed toward the sound of the nearby brushes shaking. From within the trees, a tall figure came bursting out. A woman, with purple hair even longer than her own, who looked no older than her. Wearing nothing but a tattered and torn one piece that barely clung onto her body, she was clutching her left arm with her right as if she were... "Blood? Wait, she's!-"

Two more figures came bursting through the brushes. Two men, both armed with rifles, aimed at the purple haired girl. "Boudica, get yourself and the child to the car, I'll meet you there after I deal with them." Moving closer, Scathach whispered out instructions before bolting towards the unknown assailants.

"What the?!" Before they could even react, the crimson haired woman had closed the distance. Runes armed and ready, both her hands were glowing orange, easily tearing through their firearms like a hot knife through butter. Planting her feet into one of them, she sent him flying with a kick, pulling the other into an arm lock. With reinforcement runes amplifying her strength, she easily dislocated his arm before shattering the bones in it. "You little!-" Scrambling to his feet, the other pulled out a sidearm, aimed at her.

"Eihwaz...!" Mere moments before enough squeeze was put on the trigger, the gunman instantly burst into flames, engulfing him entirely before his screams even left his throat. In mere seconds, the fire erased his body into nothingness, leaving no traces of his existence behind. "What the hell- are you?!" The other, clutching his destroyed arm in pain yelled out. "No one of concern for a dead man." Not even bothering to look at him, Scathach had another inferno erase him as well.

Rushing towards the injured person's side, Scathach bent down for a closer look. She was covered from head to toe in mud and dirt. Bloodstains all around her tattered one piece, with bullet holes probably from her assailants. Her arms and legs were filled with cuts, from minor to major. Turning the girl over, Scathach quickly spotted an open wound. A open hole slightly above her left breast, unlike her other wounds. "This isn't a bullet- magecraft?! Dammit, I need to get her to Nightingale!"

Picking up the purple haired girl in her arms, Scathach made a sprint back towards the car. When she finally left the confines of the forest, Boudica was already waiting for her with the car ready. "Scathach, what's-"

"She's injured, it's really bad. We need to get her back to Nightingale, now." Getting into the backseat with the girl, the crimson haired woman drew healing runes near the injury in hopes of stabilizing her, avoiding if not delaying the worst case scenario. "How the child?"

"Passenger seat, she's fine. I'll handle getting her back to the preschool after we get back to the office." Car already approaching Mount Miyama, Fuyuki bridge could already be seen. The girl stirred momentarily in Scathach's lap, coughing up blood but still remaining unconscious. Her hand reached, looking to grab something. The crimson haired woman grabbed the outreached hand, surprised by the iron grip she had as she tried to settle her down. "It's okay... it's okay... You're going to be fine..."

"I'm back." Looking up from her phone, Boudica greeted the crimson haired woman in the hallway outside the office's medical room. "The preschool sends its thanks for finding their lost student. Is she's still in surgery?"

"Yea, no surprises considering how bad those injuries were." It's been an hour since they rushed the mystery girl to Nightingale's office, and she is still operating on her.

"I'm sure she'll be fine, Nightingale-san has saved us from some pretty serious wounds after all. Speaking off... are you really not gonna change out of that?" Boudica pointed at the shades of red on Scathach's blouse and slacks.

"Oh, right... it's fine. My coat was spared, so I'll just wear that over later."

"I'm sure they were some spare shirts lying around storage, I could grab one for you."

Well, I'd be glad but..." Scathach pointed behind the redhead. "I think they'll need it more than I do."

Turning around, Boudica almost burst into laughter at the sight. Shirou, Ushiwakamaru and Kiyohime have returned from their task, and the trio looked like they just came out of a war-zone. Clothes that hadn't been reduced to mere rags were torn and tattered, with dirt and soot covering them from head to toe, making it literally impossible to make out the Shirou's red or Kiyohime's cyan hair at all. "What on earth happened to the three of you?"

"Yea... turns out our murderer magus was some crazy psychotic clown who uses bombs." Shirou scratched his head. "Could've been worse I suppose, though I think we're gonna receive a complaint from the enforcer."

"Why? Enforcer's usually take in people dead or alive, so even if you did kill this clown there'd be a body to show for it."

"There isn't really a corpse, or any body part left for that matter. He was carrying a lot of bombs on him and..." Ushiwakamaru looked at the dragon-girl hugging her arm, "...bombs don't really mix well with scorching hot dragon fire. Fortunately there wasn't any collateral damage but the corpse sort of... doesn't exist anymore." She explained.

"Anyway, we heard from Mashu. You met some trouble in the forest?" The boy asked.

"Yea. Two men, armed with firearms normally impossible to acquire in Fuyuki. They-" The crimson haired woman's explanation was cut short by the surgery door opening. "I can explain the rest later, for now why don't the three of you get cleaned up first. I'm sure Nightingale wants a word with me."

"Sure thing."

"Ahh! Let's go to the showers, Anjin-sama! I'll wash your back for you!~" Excited with a blush visible through her soot-covered face, Kiyohime started pulling Ushiwakamaru along towards the office showers.

"Hey- Wait! Kiyohime! Slow dow- Hey, one of you! Help!" The tactician begged as the cyan haired girl dragged her away.

...

"So no idea who she is?" The mistyrose haired nurse asked as Scathach and Boudica came into her clinic office, sitting down opposite of her.

"Nope. She literally appeared out of nowhere under pursuit, Scathach-san saved her and brought her here." The redhead explained. "With her wounds as lethal as they were, you were the only one who could save her, Nightingale-san."

"I wouldn't be so sure about that, considering the very real possibility that our mystery girl isn't human."

"Wait- what did you say? What do you mean not human?" The crimson haired woman leaned forward from her seat.

"I should clarify, she isn't just human. For starters, these..." Nightingale gestured toward the monitor on her office wall, where an image came up of a surgical tray with bloodied bullets. "Both her large and small intestines were perforated, and two went through her right lung. Normally that would've already bordered on overkill for a regular human. And these bullets made no exit wounds; these specially made armor piercing rounds should've went straight through her, but ever single one was lodged to a bone. But then there're several wounds on her back which had exit wounds on her front, the same kind of bullets hit her while she was running, but these went through her, bone and all. Differences like these aren't suppose to happen, bones don't just happen to stop some bullets while letting others go through them like paper. And that hole above her left breast, that was partially healed."

"Partially? I did use a healing rune on her while we rushed her here." Scathach replied.

"Yes I noticed, but it wasn't your runes that healed her, it was already partially healing. That's not all, whatever magecraft she got attacked by tore a hole in her left lung and damaged the left side of her heart. Even a first-rate magus wouldn't be able to survive something like that, but our mystery patient not only lived through something that guarantee's instant death, she also partially healed it off and her body managed to sustain itself through all that. Like I said, not just human. Maybe she's gifted with some sort special healing ability or magecraft, but a feat like this is usually nothing short of the work of miracles. Regardless, I have her in one of the bed-"

"Mother!" A small girl ran into the office, with green eyes and blonde hair tied into a ponytail, bee lining straight for the Nightingale.

"Mordred?" The mistyrose haired nurse lifted the young child into her arms. "Oh dear, I was so busy with- Sorry Mordred, I forgot to pick you up today."

"It's okay, Mother. Big Sis Mashu was there when school ended!" Looking up, Mashu was standing at the doorway. "Can we go eat? I'm hungry!~ Oh! Can we have karaage, please?"

"Yes, of course. Mother will be finished in a minute, so can you go with Mashu and wait for me in the lounge? "

"Okay!" The blonde child jogged off out of Nightingale's office, the lavender haired girl following after her.

"Anyway, our mystery girl is no longer in any danger. I have her resting in one of the beds, you can see her if you want. Mashu will be around in case anything happens" The nurse stood up, grabbing her bag from her locker before heading towards the lounge.

Once Marie and Chevalier returned, they were all gathered in Olga's office, where Scathach and Boudica both debriefed the situation with the mystery girl to them. "Rifles with armor piercing rounds? We're probably dealing with foreign elements. You normally can't get those in Fuyuki; even the local underworld doesn't have firepower like that." Shirou explained.

"Regardless, the both of you sure brought back something troublesome." Olga sighed. "Well as a precaution, I want someone else here with Mashu just in case, any volunteers?"

"I'll do it." Scathach stepped forward. "I'm the one who brought her here."

"Very well then. Scathach, she's your responsibility until we know what's going on."

...

"Sorry if they're a little tight."

"It's fine, Mashu." The crimson head pulled on the large shirt she was lent. "I should be thanking you instead for lending me these."

"Well, it beats spending the night in bloodied clothes. I'll take these to the washer." Unlike most of the employee's, Mashu actually lives in the office building due to certain reasons. Unknown to most except Olga, Boudica, Scathach and Florence, the girl isn't a natural human. Mashu is a Designer Baby, similar to a homunculus. A genetically engineered baby. Created at the order of Chaldea's previous director, she was meant to be superior to standard magi, but the project was deemed a failure with her creation. Mashu has more physical strength and speed than an average human, but her abilities as a magus were considered that of a third-rate magus at best. They wanted someone who could beat a first-rate right out the gate, but instead got someone with her own rather unique magecraft. Contradicting the project's original goal, she would've been disposed of had Olga not fought for her right to live. Currently, Mashu is under the Olga and the CSC's protection in exchange for working with the company, but unfortunately since she is considered 'company property', she has to live in the office.

"Sure, thanks. I'll be with the patient, so you can go to bed if you'd like."

Taking a seat by the purple haired girl's bedside, Scathach took at closer look at her. Looking at her now, she was a little younger than the crimson head herself. "Wow... you're rather tall aren't you?..." And far taller than her, only a little bit shorter than Boudica. The redhead was the tallest in the entire office, almost towering over Mashu, Shirou, Kiyohime, and even beating out Scathach. "Hmm?"

"Nggghhh..." She started stirring in her bed, slightly tossing and turning as a pained expression took her face.

"She must be having a nightmare..." Reaching out, Scathach took hold of one of her hands, surprised at how hard of a grip she had. She could also feel desperation from her grip. Moving closer to her face, the crimson head place her hand against her long purple hair, gently stroking to calm her down. "Shh, it's okay... It's okay." Eventually, peacefulness returned to her sleeping, but when Scathach tried to move away, the girl refused to let go. Surprised by the iron grip, Scathach let out a short sigh. "Guess I'm stuck with you tonight..."

Note:

Karaage is a Japanese cooking technique, commonly referring to various foods, mostly chicken, but also other meat and fish, deep fried in oil.