Author's notes

Hi readers, welcome to my fanfiction about FGO and Blue Archive crossover! This marks the start of the fiction. The main story from now on will dwell on lots more information and events Fujimaru goes through during the skipped content in the previous one-shot chapter.

ENJOY!
For readers, make sure to check this story out in Wattpad for illustrations!

Fate/Grand Order: Where All Miracles Begin, SCHALE

Prologue (2/2)

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"I'll take command. Trust me."

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"Ehh—! You're going to take command? Well... I guess you are supposed to be a teacher." Hayase Yuuka, the treasurer of Seminar from Millenium cried out in surprise. Her azure eyes blinked rapidly as she looked at the man beside me, she swallowed a huge gulp of saliva.

"..." Our eyes met. With women's instincts, we communicated via eye contact. Her uneasiness had yet to fade away even though I nodded at her.Trust him.

These weird feelings had been lingering with me ever since I laid eyes on him.

Fujimaru Ritsuka, the person handpicked by the president herself. Even though we were close friends, she did not spill any of his information at all.

A man— a male human with an unknown origin, in a span of a few days, received authority so great that he could turn the city upside down with just one command.What was her thought? Why did it have to be him? An outsider... He was not even from Kivotos.

"Yes, just follow me. I know what I'm doing." The man replied confidently, removing his hand from my shoulder.

Since the first time we met, I had been secretly assessing him. His appearance, personalities, behaviors—everything was too perfect, to be comprehensible. He was not perfect, but that imperfection... it made him become an ideal type of what a human should be like.

"..." Our gazes met again. Somehow, his eyes gave out a reassuring yet mysterious look.

As though... He was a veteran.

Just what had he been through to achieve that pair of eyes?

"Okay. We'll follow your lead."

"A student must listen to their teacher. We'll be counting on you." The other students chose to follow his lead, they must have felt the same—thus they trusted him.

"Now! Everyone—Tell me briefly what you can do!"

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After a few minutes of strategic planning, the girls began their attack.

Hayase Yuuka took the front. With the Millenium's advancement in technology, she used an electromagnetic barrier to become the bullets' target... tank them, and smash through the enemy frontlines.

Morizuki Suzumi, a member of Trinity's Vigilante crew, closely followed after her. With an assault rifle in hand, she took down thugs on the sidelines and performed coverfire for Yuuka to charge in. Her grenade was also very useful for eliminating thugs standing in groups.

Hanekawa Hasumi, the vice chairwoman of the Justice Task Force, stayed at the rear and provided long long-range support. She used her sniper to neutralize the peeking enemies with accuracy and precision.

Hinomiya Chinatsu, a member of the Gehenna's Disciplinary Committee, stayed behind in case anyone was injured.

And lastly...

Fujimaru Ritsuka—

Ritsuka Sensei, despite being an outsider, managed to grasp the overall situation and everyone's abilities... maximized them, and came up with an effective yet efficient strategy.

"That battle was much easier than I expected it to be."

"I know, right?" The girls surrounded him, celebrating their newfound teamwork and victory. They engaged in a delightful conversation. In just a few hours after their encounter, the man was accepted by the students. This marked a very good start beyond my expectation.

Is this why the president holds him in high regard?

"Rin! This place is cleared. Let's go shall we?" Ritsuka Sensei called out to me.

"Please go ahead, I will stay behind and investigate this commotion. Be careful, we'll see each other again at the SCHALE building."

"Alright— You stay alert too."

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"Finally!" Yuuka happily cried.

"Indeed."

'*static* *static*We have successfully reclaimed the SCHALE club room. I'll be arriving shortly. Let's meet in the basement of the building.'

"Okay, see you there, Rin." I replied to Rin in the communicator. After making sure the students who fought along side me were given a proper rest in the building lobby, I headed straight down to the basement. SCHALE building—a place where I would be working from now on, from the look of this, it had around 5-6 stories... Despite lots of vacant rooms and unfurnished, it looked rather new too.

After I separated from her, some more troubles were thrown at us right off the bat. I led the students to deal with more groups of thugs, a literal crusader tank, and a runaway terrorist.

From Rin's information, her name was Kosaka Wakamo, a fugitive who escaped the Correction Bureau intercepted our advance midway. She was a very skillful and agile student, I could remember her Kimono fluttering with every movement. Even if we managed to force her back, it was undeniable that she could take on 4 students in formation alone... We were in a stalemate for minutes until she finally gave in and fled.

What's with her look at the end?The look she gave me through that fox mask... My intuition for troubles, which rarely failed me, kept alarming me I would see her again soon.

"..." My first fight in this world— It wasn't that bad. I felt I had somewhat adapted to how they roll.. Bullets and explosions were fatal... but they were nothing compared to what I went through. And as expected, the students asked me how could I do that... Even Rin herself looked as though she wanted to ask that question too...

Normally, just saying 'I'm a Master.' would simply finish the whole questions and answers. But I couldn't do that anymore... right?

Should I prepare new excuses? Or... should I just ward them off?

"..." I kept a lot of thoughts to myself while descending to the basement with an elevator.

Nonetheless, what I found impressive here... were the students. The damage output mainly relied on their weapons, but in some instances, they displayed higher damage on the same weapons.

Skills? Mana channeling? Then guns were magical artifacts?

I had far too little information on this world.

"Hmm... It's so dark in here." Arriving at the dark basement, my fingers fumbled along the wall, seeking the light switch. Feeling the familiar toggle, I tapped on it.

*tap* *tap* *tap*

"...?" Nothing happened no matter how many times I tapped it on and off. Perhaps, maybe the building or the lights were damaged? Maybe someone forgot to turn on the breaker...

Fine, I guess.

I gently pressed my hands on the light switch, chanted quietly in a whisper.

"Reinforcement."

My vision changed into the inner structure of the light bulb, moved aside a little, I continued to trace to wires, to the circuits, and to the LED lightning on the ceiling.

As for why I dare to make a bold guess on students and mana channeling, In this world— I could still use magecraft. Hence, the concept of mana existed.

My mana circuit barely worked here. As if restricted, I could only perform spells that involved small amount of mana. Even though I could not properly manifest my full power—Abandoned the thought of summoning a servant or even one shadow... I could only hope that things wouldn't go south.

"The lights were broken?" Reinforcement magecraft was indeed a very basic spell, it allowed users to fix and repair objects of interest... or even revert them before they were broken.

Without hesitation, I quickly reverted the LED lights back in time, making them fully functioning.

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No one would ever believe this. Just when I was about to press my finger on the switch... A feminine voice uttered.

"Hnnn... I don't see what the big deal is about this place. What am I supposed to destroyed?"

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*flash*

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The LED lights lit up.

Like a late-night comedy, we stared at each other in shock and confusion.

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"Ara?" The girl, standing in the middle of the room, murmured in visible daze.

"..." I still remembered it as clear as day, black and red kimono with flower patterns, waist-length black hair, and a distinctive fox mask fully covering the face. We just fought each other... in just less than an hour.

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"Wakamo?"

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Bang!Out of the blue, the girl suddenly fired her rifle at me. I quickly ducked to the side, dodging away from the bullet path.

Bang! Bang!The second and third bullets came following. She shot the lights off, making almost an entire room dark again.

"—!" Seeing the present opportunity, the criminal fox rushed past me. The silhouette went straight to the doorway, trying to escape.

However...

"Acckkk!" Wakamo let out a painful noise. She crashed head-first to the glass door—that was not supposed to be this hard.

"Strengthening." Reinforcement magecraft, it successfully prevented her escape.

"—!" Seeing her guard down, I kicked off from the ground.

Bang!

Lured by my thrown suit, she shot the wrong target. I immediately closed the distance. My right hand shoved straight to her right wrist, aiming to disarm the dangerous rifle attached with a sharp bayonet.

Grasping my intention, Wakamo grunted, twisting her body and swept her weapon into a large swing. The wild slash aimed directly at my throat. My instinct kicked in. In a fluid motion, I bent my body, narrowly avoiding the blade's edge that was flashing under the dim light.

My head almost flew away!

In the blink of an eye, following the momentum, the fox dropped low. With her right hand placed on the floor, her body spun into a crescent kick. With no time and distance to dodge, I instinctively blocked.

"—!" The enormous power coupled with the rotating force broke my defense. The students' speed were slightly higher than average ... But their physical strength was a realm above. Without strengthening my arm with reinforcement magecraft, it would have been broken into many pieces.

Not leaving any second to waste, I quickly turned around to Wakamo who just steadied herself.

"Ehh!"

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In a blur of motion, I moved. My right foot slid across the floor, planting me firmly in her path. Before she could react, my left arm shot out, gripping her wrist with an unrelenting force.

The sudden jerk stopped her dead in her tracks. Her eyes widened in shock, rifle accidentally slipped out of her hand. She tried to pull away, but my iron grip did not allow so. Without giving her a chance to struggle, I again pushed her against the cold concrete wall.

"—!" Her back hit the wall with a muffled thud, and the breath was knocked out of her for a split second. As I pressed myself into her space, the room felt smaller. My left arm pinned her right wrist against the wall, leaving no room for escape. My right hand quickly followed, it rested flat on the wall beside her head, trapping her in place.

"I'm not letting you leave."

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"..."Eh?Out of a sudden, she did not resist at all. At all. Just a second ago, the girl didn't even hesitate to decapitate me... But now that I tirelessly subdued her, she stopped.

Did she run out of battery?

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"..."

"What's your goal... Here?" Now, I was puzzled too. I tried to look at her in the eyes beneath the mask, but I couldn't see anything due to insufficient lighting. Her fox ears began flopping up and down slowly yet cutely. She looked... very—very nervous.

"Uh..." Finally, she let out a small mutter.

"..."

"Well..."

"..." For some reason, did the room temperature rise? It wasn't like I pressed my body into her either— Was she emitting the heat?

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"Come here often?" Noticing this awkward situation, I quietly sighed and dryly smiled at the arrested criminal.

"I, uh..."

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"I WAS JUST LEAVING!"

And thus... she leaped out from my arms and ran away.

"..." On my first day at work, I stopped a riot, caught a terrorist, then released her within a few minutes. This sounded very absurd but from what I witnessed today, the worst she could have done was rioting. No casualties, No injuries, bystanders were not even feared or traumatized—the look they gave 'Sigh... Again?'

Plus, I didn't know how jail works yet. In my eyes, she was a student... She just needed some corrections on her behaviors.

She almost killed me too... that was likely because she didn't know how different I was from students. And here I was... alive, fine, and well—except for my right arm which was a little numb, and almost half of my mana expended.

Sigh... My mana capacity was very restricted here.A few minutes of body strengthening and a couple times of object reinforcement ran me low.

And how should I deal with this mess...

Looking at them made my eyebrow twitch. The glass of the entrance door shattered into countless shards by the first bullet. The ceiling lightings I just fixed—were shot...

I let out another sigh

While waiting for Rin to arrive, I helplessly fixed them with my remaining mana..

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"Sorry to keep you waiting. I'm here now."

"Oh.. hey, Rin." I replied, greeting the elvish girl as she gracefully walked through the basement entrance.

"Hmm? Did I miss something?"

Her sharp eyes seemed to catch something out of place. Although I fixed the broken stuffs, maybe noticed my little wrinkled shirt? Or the me who wasn't in the suit?

"Nothing in particular." I decided to keep Wakamo's matter a secret for now.

"If you insist. Well, here is what the General Student Council president left behind... Thankfully, there isn't a scratch on it."

"Please. Take it."

"A smart tablet?" Received the object Rin handed me, I tilted my head in questioning.

"Yes. This is what the General Student Council president left for you. The Shittim chest."

Shittim chest?The name did not ring any bell much. Thanks to my relationship with biblical servants, Lilim Harlot singularity, and the ruler ordeal call, I got to learn and experience a lot of biblical stories. From what I knew, it must be a wood or a locale name.

"It may seem like a normal tablet, but its origins are mystery. Its manufactuerer, OS, system structure, and components are completely unknown."

"The General Student Council president left the Shittim Chest to you. She said that you'll be able to take control of the tower with it."

"None of the other members know how to activate it. Perhaps you may be able to figure it out, Sensei, but if not..."

"..." As Rin paused her explanation, I looked at the tablet in my hand.

"..."

"My job here is done. I shall let you take the lead. I will step away so as not to interfere." And with that, Rin excused herself... leaving me alone in the room again.

She said the member of the GSC council could not use it, thus left were two options: first, any person who was not from Kivotos—or me, an irregular from another world.

I pressed a random button, hoping to activate the tablet.

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The screen lit up in blue light, messages began to display

Connecting to the Shittim Chest...

Please enter the system password.

"..." I entered what I barely remember—

We thirst for the seven wailings

We bear the koan of Jericho

Using the phrases I couldn't understand, the tablet miraculously recognized them.

Password accepted. User identified as Ritsuka. Confirmed

Welcome to the Shittim Chest, Ritsuka Sensei.

Converting to operation system ARONA for biological authentication and generation of verification certificate.

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In the blink of an eye, the scenery around me changed. As if I was pulled into a mindscape, the surrounding was no longer a basement, it had been replaced by what looked to be a wrecked classroom.

The classroom seemed to be abandoned, most of the walls and windows were long gone— on the outside... the bright, open blue sky stretched as far eyes could see. The white snowy clouds drift lazily above the vast expanse of tranquil ocean.

Inside the classroom was sparsely furnished, only some wooden tables and chairs were arranged neatly, while the rest were piled into a mountain.

Despite it looking abandoned and damaged, the atmosphere was serene yet unsettling. The contrast between a wrecked classroom and a beautiful view of the clear ocean— it made me a little bit uneasy.

Nonetheless, what caught my attention the most...

There was a little girl sleeping at a desk in a strange room

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zzZzzZzz...

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zZzz...

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Castella cake... Banana milk... goes better than strawberry milk...

ZZZzZ...

Sleeping soundly, she mumbled cutely about various kinds of snacks. The girl, who seemed to be in elementary or junior high at best, wore a blue sailor uniform with a pure white skirt. Her short sky-blue hair covering her left eye, and a white headband with a large bow— added a touch of childishness and innocence.

Heehee... There's so much left...

I poked on her baby cheek, waking her up from the pleasant dream.

Slowly, she reluctantly opened her eyes and yawned cutely.

"What's going... on?"

Blinking rapidly, unsure of what she saw as though differentiating a dream and reality. The bright blue eyes looked at me, the person who disturbed her sweet time.

"Huh...? –Uh... Huh? Wha—?!"

"S—Sensei?!" After a few signal delays, she somehow recognized me.

"If you're here, does that mean you're Ritsuka Sensei?!"

"Yes, that's me. And you are?" I replied, amusingly watching the flustered girl try her very best to talk to me. Her halo changed its shape from an incomplete ring to a full circular ring too...

"What? So I'm right? What time is it?! Wait... Calm down..."

"Um, so... Oh, that's right! I forgot to introduce myself!"

"My name is Arona! I'm the system manager that lives inside the Shittim Chest. I serve as its main OS. Think of me as your trusty secretary, Sensei!"

"I'm so glad to finally meet you! I've been waiting for a long time!" With a beaming smile, Arona's halo changed into a heart.

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The sun went down.

Everything became peaceful once again.

After I got the meet with Arona, we went through some procedures for using the tablet— yes, user identification with fingerprint. Rather than face or eye recognition, the Shittim chest operated on fingerprint privacy setting...

Afterward, Arona also restored the Sanctum Tower's access permissions. Now, the tower was fully under Arona's control... the entirety of Kivotos was in the palm of my hand.

Yes... Literally— within my fingerprint.

As we worked together, she reminded me a little of Mash. Maybe their hairstyles were similar?

Still— Her existence bugged me.

Arona, she closely resembled the missing GSC president. Putting the two next to each other, even a stranger would think they must be related.

Daughter?— Impossible. Sister?— Probability exists...

However, if I consider the most bizarre element... Time.

Arona could be her future daughter...?

But most likely— Arona was the president.

If correct, she was her child self? That would mean she went back in time? Like how King Gilgamesh drank the potion of youth? Or she was an aspect—an incarnation of the president?

With limited information, I could do nothing by keep quiet on this matter.

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Back to what happened earlier. The access permissions were in our hands for less than a minute. Since managing the city was not our task, we transferred the authority directly to the General Student Council.

Following that, Rin showed me the overall building. My new house and workplace— Federal Investigation Club: SCHALE.

Thanks to my deal with the GSC president, she had prepared the office and living floor for me. I was very thankful to her—on our first meeting, she even gave me a golden credit card so I did not have to fend for food and a roof by myself. In just a few days, she also created this club, with an entire building and a whole bunch of authorities.

Rin further explained them in detail... In summary, I could freely enter any academy district, I could register any students to SCHALE, and I had the power equivalent to the GSC president herself.

Nonetheless, with the president missing, the council was flooded with civil complaints.

With great power comes great responsibilities. As a result, Rin had me handle piles of documents... solving problems the students or the city were going through became my official job.

Behind the scenes, I would investigate and fix this singularity.

I laid on my bed, staring up at the ceiling above.

"Kivotos..." I mumbled to myself, glancing over to the newly received item in my hand. A nametag... with a SCAHLE symbol on it. As long as I carried this around, I held the highest authority in this city—surpassed even that on the General Student Council.

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I pushed myself up and stared outside of the window.

Like a pillar that supported the heaven, the sanctum tower's beacon shone brightly. Its radiance competed with the starry stars in the dark expanse night sky. From the center of the light pillar high above, magic circles spread outward.

The mysteriously disappeared president whom I just met.

The core players of the stage— students.

The ring of lights on top of the students, displayed in unique forms, absorbing damages, performing self-rejuvenation, and granting them exceptional physical prowess— halos.

The city— autonomously produced an irritatingly large number of students, and also seemed to be sustained by many large magic circles.

The world that old humanity had gone, remaining here were robots and demi-humans.

My heavily restricted mana—

Just what the hell is this singularity?

What went wrong in this world?

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I'm sorry everyone... Looks like it will take me longer than expected.

END CREDIT 1

It was the first time...

Never had she lost against anyone...

But today— that man...

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That moment, as the dim light flickered overhead, as she rushed toward the door. Her escape seemed imminent—just a few more steps and she'd be free. But he—he didn't let that happen.

The Fox of Calamity, the scary demon that destroyed everything in her path.

But today—she was suppressed.

She was pinned to a wall.

She could feel the heat from his body radiating against her, his every movement calculated and deliberate. His gaze locked with hers, dark and intense, but there was something unreadable in it, like a storm just waiting to break.

Her breath hitched, her chest rising and falling rapidly, her pulse pounding in her ears. She had been so close to freedom, but now, trapped against the wall, the man's presence was overwhelming. She had nowhere to go.

"I'm not letting you leave," he said, his voice low, almost a whisper, but the finality in it left no room for argument.

To the maiden's innocent heart—

She remembered it loud and clear.

The man's voice engraved into the deepest part of her memory.

His voice kept reverbing... and would be... as long as lifetime.

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The silence that followed was thick, their faces inches apart, the tension in the air thick enough to be cut with a knife. The MC's grip didn't waver, his body close enough that she could feel the warmth of his presence like a storm ready to break. The world seemed to stop, just for that one moment, the line between them blurred.

His eyes—His gazes...

The black pupils that were enshrouded in mysteries...

Like a void, they lured her in— An infinite maze that no one could escape.

The more she ventured in—the more she wanted to know about him.

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Instead of shame and embarrassment.

Something else awoken.

Love and Obsession.

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The Fox of Calamity had fallen.

"Who is heeee?!"

"What is this feeling in my chest..." Somewhere in an abandoned building, Kosaka Wakamo found herself clutching her chest. Her heart beat fast as though on the verge of explosion, the feelings she had never experienced— they could outburst any moment.

"Ha—Ha... Ha..." Panting hard, she tried to calm herself.

Deep breath in... Deep breath out...

"Fujimaru Ritsuka..." The face of the man surfaced in her thoughts, she recalled their encounter yearningly.

He protecc...

He attacc...

But most importantly...

He pinned me bacc

"Ahh~~ my darling... This must be fate."

"We'll meet again."

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END CREDIT 2

In somewhere far—far way...

Clank! Clank.. clank...

Shattered on the ground, a glass cup slipped out of the owner's hand.

"..."

"...?"

Looking at the glasses that were broken into millions of pieces, all witnesses' eyes returned to the owner whose hand was trembling nonstop.

"What's wrong Tamamo-san?" A cute, princess-liked girl asked her in worry.

"My fox instinct—"

"...?"

"...?" The two girls stared at the Nine-Tailed fox in visible confusion.

Pluck!

"Master... There must be a street fox hit on Master!" Slapping her hand on the cafeteria table, she yelled in frustration, her eyes brimmed with burning passion.

"Nnn—No way! Puppy couldn't possibly—"

"No! A good wife always knows what her husband is up to!" Tamomo no Mae quickly disputed the lizard girl's opinion.

"Aaaah! You don't think so too right?! Kiyohime—!" Having nowhere to turn to, the dragon girl helplessly sought her friend, only to be greeted with a shocking sight.

"Ehh! Ki—Kiyohime! Why are you vibrating?!"

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END.

Author's note

That's it for the whole prologue! Hope you all enjoy! As for the main story, I would probably skip a lot of insignificant parts... I also have a new plan for uploading side stories (Most of them happened in the middle or after the one-shot epilogue). The side stories will mainly be about daily lives of Fujimaru Rituska and his students.

See you all in the next chapter! Stay tuned!