Author's Note: If anyone hasn't figured it out by my Naruto: Maoyu fanfiction, I'm a raging fan of both Fate/Grand Order and The Witcher 3- Wild Hunt. This should've been made very apparent from the way I included not only Historical Characters into the Naruto universe, but Japanese mythological monsters.

About two or three years ago I wrote this prologue and premise based on the Witcher 3- this was back when I was playing the hell out of the game and putting in more than 300 hours into it. I wrote this fic because I thought a Naruto X Witcher 3 Crossover would be cool. But I never published this fic because I didn't think the idea was well-fleshed out and people wouldn't read it.

But then the Witcher Season 1 came out on Netflix, and my love for the game and the Witcher lore was reignited once again. After browsing through my old stories on my hard-drive, I came across this, so I decided to post it to see where I can take it. It's also a way for me to keep in touch with fanfiction while I'm doing my comics.

I'd put this story aside for two years, but with some re-working I think I can make something out of the concept.

The Conjunction of the Spheres taking place in the Naruto world- in which Japanese monsters and other beasts of myth appear in the Naruto world- and the only people that can stop them are Jinchuriki (aka Witchers). Seems legit…

NARUTO

Wild Hunt

Prologue

(Night)

(So no Kuni)

For the past couple of weeks, the late hours that came over So no Kuni (Land of Ancestors) at the end of every day had been, for the most part, quiet and uneventful. The peaceful, wide open farmlands and untouched wildernesses that dominated the countryside beyond, stretched far beneath the glittering veil of the night sky- broken every so often by the occasional village and winding rivers. Across this green, serene landscape, not a single creature or person stirred, save for the crickets chirping away in the undergrowth and the gentle rustling of bushels from the light breeze that drifted in from the east.

And, amidst all the quiet and tranquillity of the region, inside the walls of the large estate known by everyone as the home of the Emperor of So, Tenji, a lone figure stood silent and watchful.

Her skin- smooth and white as the robes that adored her, her face- beautiful and fair as the glow of the moon, and her hair- long and glittering like silver water, Kaguya Otsutsuki- the newest visitor to this ancient land, waited out her hours out under the tapestry of starlight. Her gaze, though blank and devoid of base emotion, remained transfixed upon the heavens above her and the ocean of tiny lights that dominated the pitch black of space.

From where she stood, the strange, pale woman could see every single ember and glint that stretched across her part of the sky. Though many of the lights were absent of name and worlds boasting any form of life, Kaguya was still able to recognize all the constellations before her.

With no other lights radiating from the Earth and polluting the atmosphere, the view of space was made that much clearer to her and the people who occupied this nation. Were Kaguya's thoughts not troubled by other matters and concerns, she would be able to enjoy the view and bask in its beauty.

As she stood there, listening to the crickets singing away in her pond, she felt something warm and fluffy drape over her shoulders. Her concentration broken, Kaguya glanced over to see the smiling face of the Emperor of So no Kuni- Tenji- smiling back at her.

"You're standing out here by yourself again?" the man asked in a kindly voice, his hands moving from her shoulders from where he'd laid the kimono over her. "Can't sleep?"

Not reacting beyond a blink, the white-eyed woman turned her eyes back to the stars before her. "No."

A frown then fell over the youthful man's face. "If there's something troubling you, you can tell me. You know I'll always be here to lend you an ear if something's weighing on your mind."

Remaining silent for but a moment as her eyes remained locked on the glittering blanket of stars crossing her line of sight, Kaguya then decided to give Tenji her answer. "Even if I was to lay my troubles over you, there wouldn't be anything you or anyone else can do. The burdens that I carry are mine and mine alone to deal with." When she turned and noticed the slightly taken aback and hurt look that'd come over her lover's face, the white-haired princess blinked. "Sorry."

Taking a deep breath, Tenji put on a smile again. "That's okay. I should know by now that there are some things about you that are a mystery to us humans. Perhaps they might be things that neither of us will be able to understand. After all, you come from up there… from amongst the stars," the Emperor replied, gesturing up towards the cosmos above. When he turned to gaze up at the heavens, Kaguya's gaze joined his, leading to the two of them standing side by side and staring up into space. "It must be amazing, living amongst all those floating lights. I can only imagine what kind of wonders are ."

"Mm…" Kaguya murmured, responding to the man's remark as he gently wrapped an arm around her back. In response, the woman reached up with her hand and gingerly laid it against his arm.

When the thought of space and home touched Tenji's mind, the young man blinked before glancing down at the white-haired beauty resting against him. "I've been meaning to ask you, Kaguya… what is the world you come from like? And your people?"

A little bit caught off guard by the sudden query, Kaguya glanced across at the country's ruler to see his inquisitive gaze fixed upon her. Staring back into his wide, glimmering eyes, the woman felt her mind race at a mile a minute while her expression remained stoic and unflinching. Following a full minute of debate, the woman suddenly turned her eyes towards the ground- for the first time since she came out here over an hour ago.

"The world… the planet that I come from… is not like this one," Kaguya replied in a low voice, though her tone was calm and unwavering. "Our lands are wide, grey and barren, the sky is black and endless… yet the village that dwells on it boasts aesthetic beauty no other world bears. The soil is pure… as are the people… and everyone treats one another with the utmost respect and reverence… especially those of the main family."

Tenji, feeling he was finally making some headway in learning about his lover, beamed across at her with excitement. "Are your people friendly? Do they share the same desire for peace as you do?"

Kaguya, looking across at Tenji once more with her unwavering gaze, suddenly felt her brow crease as her eyes narrowed. It was the first time the emperor saw the woman's unflappable visage warp during a simple conversation, which caused him to balk slightly at the level of intensity he suddenly felt come over her.

"No."

Stumped by the woman's incredibly sharp response to his query, Tenji felt his lips shut tight and a cold child run down his neck, causing him to inhale stiffly. At first not knowing how to respond to Kaguya's single-worded answer, the man was left for a moment to wonder over what kind of people the white-haired beauty referred to as her own.

Were they the reason why she came to this planet in the first place? Was she sent here by them to negotiate or to scout this planet as a potential habitat? Or did she come here of her own accord- to find another race of people who thought like she did? Or was it to leave the tight grip of her people?

To escape?

Many questions started revolving around Tenji's head over the reasons why Kaguya truly came to their world. During which time, the man couldn't help but allow his gaze to momentarily stray towards the giant tree he could see protruding from the mountains in the distance. The great monolith, which had been standing on the doorstep of his nation for the last several millennia and continuously casting an ominous shadow over his land, struck some sort of nerve inside of him. A nerve which caused his expression to momentarily steel.

After allowing his thoughts to stir for some moments over the mystery as to his beloved's motives, Tenji quickly looked back up towards the sky and breathed deeply. "I…"

Unfortunately, the young Emperor was not given time to begin his remark. For as soon as he uttered that syllable, a sudden flash of bright light suddenly filled the sky. The anomaly, which sent a ripple effect of bright embers rushing across the atmosphere in all directions like an explosion, caused both Tenji and Kaguya to stare up at the heavens in surprise.

At first there was nothing but silence- the sight of the flash causing Tenji to freeze up while Kaguya reflexively backed into his arm and grip the man's sleeve. But then, seconds after seeing the wave of bright, white light rush over the heavens and distort the veil of lights twinkling above it, in the distance the pair saw a white layer of clouds rise from the other side of the mountains.

The Shinju (God Tree), which had previously been standing firm and unmoving against the harsh weathers of the world for the last millennia, suddenly bucked like a tiny bushel from the clouds that crashed into it from behind. As its leaves scattered, the wall of white rolled down the mountain ranges and into the valley below. Moments later, the fast-moving, thick wall of white rolled over the sweeping countryside of So no Kuni, growing closer and closer towards both Tenji and Kaguya, before eventually crashing headlong into their estate.

What followed immediately after the palace was swallowed up by the wall of white was a deafening howl, as what felt like a hurricane gale slammed into the two lovers, sending the pair stumbling back like a couple of startled apes. Both Tenji and Kaguya cried out in alarm as they were almost knocked off their feet by the sheer force of the blast, which sent waves and waves of perspiration and debris into them and over their home.

The sounds of terrified villagers in the neighbouring buildings being struck by the sudden tsunami of clouds were drowned out by the piercing howl of a cyclone, with only the sounds of deep explosions and the crashing of wood being the only foreign noises echoing above the storm. When Tenji and Kaguya attempted to open their eyes against the forces blasting them in the face, they were both reduced to a painful squint, as they could barely see what was going on two feet in front of them thanks to the sting of the wind crashing into their faces.

"Ngh… w-what's… going on?" Tenji cried out, unable to catch anything through the fog as it continued to charge into them like a herd of stampeding cattle.

As the temperature around the pair dropped like a stone, Kaguya, unwilling to stand against this freak blizzard for any longer than she had to, focused her closed eyes on the space before her and activated her Byakugan. With a grunt, she unleashed a flash of light from her eyes that sent a shockwave-like blast ripping into the raging hurricane, which helped her to part the clouds and clear the air around the estate. Her sudden expulsion of energy seemed to do the trick, for as soon as the rolling clouds cleared- leaving a hole in the centre of the mass- both she and Tenji were able to stand once again.

As the pair straightened themselves up into more dignified stances, the two of them began to scan the area about them. Though the wind continued to howl at a deafening rate and snow had begun cascading around them, both the emperor and his lover found themselves in awe at what was going on.

From horizon to horizon their view was obstructed by a heavy layer of continuously moving clouds barrelling across the countryside, which swallowed up the neighbouring villages and farmlands. The condensed, murky vapours poured over the countryside, sending snow cascading all around and rapidly covering the once green fields in a carpet of white. It was an almost surreal sight- the two of them standing in what was best described as the eye of the storm separated by Kaguya's extra-terrestrial abilities, while everything else around them ended up being swamped by a tsunami-like nebula.

Tenji, startled by the extreme and unexpected change in weather, looked around in alarm. "What is this? Do you know what's happening, Kaguya?"

The white-haired beauty, also doing an about turn and narrowed her eyes, "This cold… it is not of this world."

Her response had Tenji glance across at her. "Huh… you mean… this weather is coming from-"

Before the emperor could finish his question, Kaguya's eyes widened when something else jumped up on her extra-sensory radar. Energy spiking, the woman spun around and looked up towards the sky, where she noticed the starry sky- warped by the earlier explosion of light- distort and shimmer like a sheet of water. From it, the extra-terrestrial proceeded to watch as multiple black spots suddenly started opening across the veil, each one wreathed in orange or blue flames that seemed to burn with unnatural embers.

Like a sheet of paper burning in several spots, the anomalies widened and stabilized, before suddenly beginning to expel gusts of snow laden winds. And from them, Kaguya and later Tenji noticed hundreds upon thousands of black, winged creatures of various sizes start to pour out of the holes to fill the skies.

While the emperor appeared taken aback at the sight of what looked like giant reptiles, bats, and other creatures begin filling the swirling skies, Kaguya- for the first time since her arrival on this world- appeared the most startled. Eyes wide and mouth agape, the woman took a shaky step back.

Her Byakugan activated, she was able to see more and more black holes beginning to open. But thanks to the storm and clouds blocking out most of the surrounding country, she was unable to count how many were opening. The only ones she could see were those appearing above her where the clouds were clear.

Whatever the case, the results horrified her.

"A spatial distortion…" Kaguya said in a low voice- low enough that Tenji was barely able to make out any of her words. "The barriers between dimensions… they've been perforated."

But how? Why? An event of this scale and magnitude taking place in their world was unheard of, unless…

The woman then blinked as she then fixed her eyes on the space above her, where she began analysing the planets in this sector to ascertain the cause of this catastrophe. Narrowing her gaze on the sky as her eyes darted about in a frantic pace, the princess of white spent the next minute searching for an answer… ANY answer to explain what the hell was going on.

Unfortunately, neither she nor Tenji were able to dawdle contemplating for long. For as soon as creatures started pouring into the sky through the rifts to the world, a loud bang and the sound of crackling fire exploded nearby. Their eyes snapping across the estate, both Kaguya and her human partner noticed several more singularities open on the other side of the wall- with one bursting open in the very garden they were standing in.

The singularity appeared for but a moment. A split second before it faded, a fog poured out, along with what the pair at first thought was a very tall, slender human. However, as soon as the creature stumbled out of the rift, it almost immediately lurched forward, scanned the vicinity about it, and locked its two black, hollow eyes on them.

Tenji and Kaguya would've screamed in horror had they not accidentally backed up into each other's arms, because the thing they were gazing at was not like anything they'd ever seen before. What stood before them and glaring them could only be described as a corpse- a thin, lanky, deformed humanoid with sickly, green skin, bony build, curled, elongated fingers, pointed ears, coals for eyes, and a jaw lined with rows of razor sharp fangs- one poised next to the other.

It was like a creature that'd stepped right out of a person's worst nightmare. However, the most horrifying thing about it- aside from everything that was already described- was the fact that its chest cavity was ripped open, exposing not only its rib cage but a furrow that would normally be holding its organs… only there weren't any. Whatever was allowing this thing to breathe, stand, and glare at them with murderous intent… just didn't seem to exist with this thing. It was almost like some sort of zombie.

Like before, nor Kaguya nor Tenji had time to contemplate what kind of horrid monstrosity had appeared before them, for as soon as the portal closed behind it, the creature gave a loud snarl and started towards them at a high-paced stride.

While Tenji reached for his obi and grabbed his knife, Kaguya promptly nudged him aside, stepped forward, and glared at the beast. "Begone, fiend!" she shouted, before another flash of light occurred from her and she unleashed a shockwave towards it- one with enough force to eviscerate an entire group of soldiers armed with spears.

However, when the blast of wind she let loose struck the towering beast stomping towards them, not only did it not do anything, it only caused it to lurch back and stumble. When it eventually padded to a stop along the grass, digging its clawed talons into the floor, the green devil let out a snarl before, much to Kaguya and Tenji's surprise, it vanished in a puff of mist.

Both lovers standing on the lawn balked when they saw the creature fade into fog, which covered the area behind it before beginning to stretch over the whole garden. When it disappeared, both began searching the area, hurriedly attempting to track where the beast had vanished.

"An illusion?" Tenji uttered, guessing that what the thing Kaguya had attacked was just a mirage.

Kaguya, her Byakugan wide and active, attempted to pierce the mist surrounding them to find the monstrosity that'd been charging them. After several moments of searching, the extra-terrestrial woman was hit with a rather alarming realization. "I… I can't see it…" she whispered, having counted on her clan's famed dōjutsu to be able to seek out the cretin. But for some reason, the beast's form, mass, and chakra signature had just disappeared into thin air.

Actually… judging from what she was able to make of it… she didn't think this thing was even using chakra. Whatever energy it was using… her Byakugan couldn't identify it. It wasn't even registering to her.

While Kaguya was scanning the garden in front of them, the mist around the couple had unexpectedly thickened and filled the air above them. As a result of the vapor becoming denser, the princess was unable to see the fog behind her manifest into a body, before the creature that'd been stalking towards them rematerialized- its clawed hand drawn back for a strike.

Tenji however, keeping an eye on their backs, spotted the thing emerge from the mist and gasped. "KAGUYA-CHAN!"

The white-haired beauty spun around at her lover's shout of warning to see the Foglet lunge at her with its claw, which swung down at her from a high angle- too close for her to avoid. A gasp of fright left Kaguya's lips- the woman swinging her arms up to defend herself. However, just when she thought she was about to get sliced right down the centre by the beast, she suddenly felt her body get knocked aside as Tenji, out of pure reflex, leapt at her and pushed her out of the way.

The sound of flesh tearing followed by a bloodcurdling cry filled the air as the young emperor felt the beast's claw slice right into his back, drawing four blood marks over his flesh and sending a spray of blood across the ground. A second later, both he and Kaguya hit the ground together, with him on top of her and a stunned princess lying beneath him.

"T-Tenji-san!" Kaguya cried out, looking down to see her lover's wounded face hovering just above her.

Peering up through one eye, the clearly pained man clenched his teeth and whispered to her, "Kaguya-chan… run!" he gasped, before his gaze suddenly snapped around and up.

When the pair turned their eyes back to the demon, they saw the mist-shrouded Foglet stomp towards them- its fingers curled in front of it and its maw wide open in a show of menace. A low snarl leaving its teeth, the creature, moving till it was practically towering over the two humanoids, draw back its left arm and prepared to finish them both off in one stroke.

Seeing its claws bear, both Tenji and Kaguya shut their eyes tight, with the young emperor ducking down and shielding his lover with his body.

A split second later, the Foglet struck…

TO BE CONTINUED…

Author's Note: According to Witcher lore, the Conjunction of the Spheres took place some 1500 years before the start of the main story. Aligning this with Naruto's timeline, I wrote it to take place when Kaguya first came to Earth and before she ate from the fruit of the Shinju.

In this variation, chakra will still be a part of this world, but it is an entirely separate entity from "Chaos" or "Magic". So you have this interesting event where chakra and magic are mixing together, but they mix together just as well as water and oil does, so there's going to be conflict.

By the time the present rolls along, Naruto will serve as the "Geralt of Rivia" of this world- a monster hunter who uses the power of both Kaguya AND magic to fight and slay monsters, making him both a jinchuriki and a mutant. As it will later be revealed there are pros and cons to this.

Beastiary

Foglet (aka Ignis Fatuus)

"Careful, sir, a monster prowls the bog. Enter the mist and ye'll never see home again!"
– Leslav, peat diggerThe monster that appeared and attacked both a fledgling Kaguya and Tenji turned out to be an ancient foglet. These are exceptionally long-lived creatures - some have even lived for over two hundred years, growing stronger and stronger all the while. Blows dealt by foglets of such an age carry so much power blocking them is out of the question. These foglets possess the ability to move extremely quickly, and not even trapping spells like Yrden or shock waves can slow them down. Furthermore, they can meld completely into the mist, then suddenly rematerialize to strike from behind. Wearing heavy armor or making good use of the Quen Sign is highly recommended.This ancient foglet proved particularly adept in the art of forming illusions. Only a professional monster slayer skilled with Signs and swords could best such a foe.