Crossover Anime: Starting by fusing with an old sword and summoning Morgan

The dried-up riverbed of the Weiyuan River radiated the lingering heat of the scorching night air.

The nauseating stench of the deep sea that had once lingered over Fuyuki City had now been completely replaced by the absolute smell of scorched earth.

Rin Tohsaka, holding the still unconscious Sakura Matou, stared blankly at the man in front of her holding a fragment of dark blue crystal.

As the sixth head of the Tohsaka family, she received the most orthodox magic education from a young age. Whether it was gem magic or the analysis of ley lines, she believed that she was second to none.

But tonight, on this absurd night known as the "Fifth Holy Grail War," her proud knowledge of magic was shattered by Luo Chen.

"You...you really intend to attack in the opposite direction?"

Rin Tohsaka's voice was a little dry. She looked at the faintly glowing fragment of the "Silver Key" in Luo Chen's hand and swallowed.

"That's an Outer God! An indescribable being that doesn't belong to the physical laws of our universe! You finally managed to seal the hole in the Greater Grail, and now you're opening it yourself. If that thing from over there pours out, the entire Earth will be assimilated into unobservable ruins!"

"If it were those old men from your Magic Association opening the door, it would definitely turn out like that."

Luo Chen turned around and tossed the fragment of the Silver Key into the air.

The fragment did not fall, but instead defied gravity and hovered at Luo Chen's eye level, emitting deep blue ripples like waves on water.

"But if I go to open the door, the situation changes."

Luo Chen had his hands in the pockets of his black trench coat. His crimson-gold vertical pupils showed no fear of the unknown, only the coldness of a hunter looking at the prey's lair.

"This is called a 'physical home visit'."

"Since that glowing sphere covered in eyes likes to spy on our world through the cracks in the door, I'll just kick the door open and gouge out its eyes one by one."

"That's incredibly barbaric."

Morgan le Fay gracefully walked to Luo Chen's side, his black magic umbrella lightly touching the dry riverbed.

With a crisp sound, twelve dark blue fairy beams instantly rose from the ground around everyone, forming an absolute defensive position with a diameter of 100 meters.

"However, I don't dislike this kind of barbarity."

Morgan raised her head, her ruby-like eyes coldly fixed on the fragment of the Silver Key suspended in mid-air.

"Arthur, leave the anchoring of the interdimensional coordinates and the stabilization of the passage to me. You can pour your magic into it as you like, and I will use the laws of the Fairy Kingdom to forcibly lay a 'red carpet that will not collapse' on this passage."

"Thank you for your hard work, Morgan."

Luo Chen smiled slightly, extended his right hand, and placed his palm on the front of the Silver Key fragment.

The [Third Star Particle Body] within the body began to operate at an overclocked frequency.

If Luo Chen had only used a fraction of his mass in the previous battle, now, in order to forcibly tear apart the dimensional barrier leading to the outer universe, he released the full domain energy of the [Three-Digit Box Garden] without reservation.

"—Simulated Star Chart: Truth of the Star."

"—Conceptual connections, with imaginary numbers running throughout!"

boom----!!!

There was no deafening explosion, but a dull thud that made everyone's heart stop resound in the air.

The fragment of the Silver Key melted instantly into a dazzling silver liquid light under the infusion of Luo Chen's vast, star-like magic power.

The beam of light was like a sharp scalpel, piercing fiercely into the void above Fuyuki City.

The space has been cut open.

It was not an ordinary door, but a huge rift valley that presented an extremely bizarre appearance, as if it were multi-dimensionally folded.

The interior of the rift valley is devoid of any color, only pure, insane absolute darkness, and the occasional glimpses of distorted lines that defy any Euclidean geometry theorems.

"This...this is the passage from the outer universe..."

Archer (Red A) gripped Gan Jiang and Mo Xie tightly, his expression more solemn than ever before.

He could feel the aura emanating from the other side of the crack frantically repelling the heroic spirit's spirit core within his body.

If it weren't for Morgan's fairy barrier fiercely resisting the dimensional erosion, he and Rin Tohsaka would probably have been crushed into dust the moment the rift opened.

"Stay here, Rin, and Archer too."

Luo Chen withdrew his hand, his black trench coat fluttering in the dimensional turbulence.

He didn't turn around, but his voice clearly reached their ears.

"Keep an eye on that little girl with purple hair. Before dawn, I'll have this sky completely cleaned up."

"Who asked you to meddle! Be careful not to die in there!"

Rin Tohsaka gritted her teeth and shouted arrogantly, but she gripped Sakura Matou's hand even tighter.

"Let's go, everyone."

Luo Chen looked at the group of stunningly beautiful Servants beside him who were already unable to contain their fighting spirit.

"Go and deliver a belated surprise to the 'Master of the Gate' who's hiding outside."

"I can't wait any longer!"

Mordred let out a wild laugh, carrying the greatsword that had been modified by Dumas and was radiating intense red heat, and was the first to charge into the dark crevice.

"Dad! I'll clear the way!"

"Lord Mordred! Do not be rash!"

Artoria (Saber) frowned slightly and immediately drew her holy sword, following closely behind.

Lancer, Scáthach, Melsin, and Ishtar did not hesitate at all, transforming into streams of light of various colors and entering in single file.

Morgan, at the very end, maintained the stability of the passage and stepped into that unknown abyss alongside Luo Chen.

As the last two people entered, the massive spatial rift slowly closed above Fuyuki City, as if nothing had ever happened.

Only the dried-up Weiyuan River remains, bearing witness to the frenzied reverse invasion that just occurred.

……

Imaginary Abyss, Outer God Observatory (Yog-Sothoth Projection Domain).

As the group passed through the crevice, the sight before them caused everyone to experience a brief moment of dizziness.

There is no sky, no earth here.

The concepts of up and down, left and right, front and back are completely overturned here.

The group seemed to be suspended in an infinite maze made up of countless huge, broken geometric blocks.

These cubes have an eerie gray-blue hue, some are constantly folding, and some are extending infinitely, with light exhibiting strangely curved paths.

"vomit……"

As soon as Ishtar landed, she covered her mouth, her face turning pale.

"What the hell is this place... My spatial awareness is completely messed up! I'm clearly going downhill, but my body is floating upwards! This completely violates the laws of physics!"

"Close your eyes and use your magic to sense."

Scáthach crossed her two pistols, her wine-red eyes coldly scanning the ever-changing geometric shapes around her.

"This is a high-dimensional space constructed using non-Euclidean geometry. The power of the Outer Gods distorts vision; if you rely too much on your eyes, your soul will be torn apart by this distorted conception."

"A pointless smokescreen."

Morgan snorted coldly, and the magic umbrella in his hand slammed heavily in the void.

"—Fairy Realm: Absolute Gravity Anchor Point!"

hum!

A layer of deep blue aura instantly spread out from Morgan's center.

In this directionless space, Morgan forcibly defined "below" using fairy magic.

Everyone instantly felt their bodies sink, and their feet landed firmly on those gray-blue geometric blocks.

Although the surrounding scenery was still distorted, at least the feeling of weightlessness and dizziness was completely eliminated.

"As expected of Her Majesty the Queen, her method of forcibly altering the environmental settings is truly reassuring."

Luo Chen stood at the very front, his crimson-gold vertical pupils flashing with analytical light.

From the perspective of "Three-Digit Sandwich Garden," these distorted spatial folds cannot obstruct his view at all.

He could clearly see that in the deepest part of this labyrinth, there was a colossal object composed of countless luminous spheres, slowly rotating.

"Found it."

Luo Chen's lips curled into a cold smile.

"The projection of Yog-Sothoth, the Lord of the Gate."

However, how could the living be allowed to freely enter the territory of the Outer Gods?

Just as Luo Chen pointed out the direction...

Click.

Click, click.

The surrounding gray-blue geometric cubes suddenly began to rub and recombine violently.

A thick, black mist seeped out from the gaps between the blocks.

The mist condensed in mid-air, transforming into eerie hunting dogs with slender bodies and sharp-angled, folded bones.

They have no eyes; their heads consist only of a gaping maw filled with tiny, sharp teeth.

Their bodies seemed not to exist in this dimension, sometimes clear, sometimes transparent.

"Hounds of Tindalos."

Scáthach recognized the monsters at a glance, and her magic spear ignited with a purplish-black death aura.

"Alien monsters that hunt intruders in the gaps of spacetime. Their attacks ignore physical defenses and directly affect the causality of the timeline."

"I don't care what kind of hunting dog it is, if it dares to block my way, I'll chop it all to pieces!"

Mordred didn't care about causality at all. She suddenly exerted force with her legs, and her whole body transformed into a red lightning bolt, directly charging into the pack of hounds.

"—Die!!"

The greatsword swept across, and crimson lightning exploded outwards.

But then a bizarre scene unfolded.

Mordred's sword energy, powerful enough to split mountains, actually passed right through the Tindalos Hound the moment it touched it!

The hounds' bodies instantly transformed into sharp-angled shadows, perfectly avoiding the combined physical and magical attacks.

"What?!"

Mordred was taken aback.

The next second, the three-headed hound leaped out from the sharp corner of Mordred's shadow, opened its blood-red maw, and bit at her throat and limbs!

This is not a normal spatial movement at all; it is an absolute sneak attack launched by taking advantage of dimensional blind spots!

"careful!"

Artoria (Saber) shouted and swung her holy sword fiercely.

Golden starlight formed a barrier, narrowly blocking the several giant mouths.

But the impact still forced Saber back half a step, and the brilliance on her sword even dimmed slightly.

"These monsters don't exist in three-dimensional space; regular attacks can't pinpoint their coordinates!"

Lancer raised his holy lance, and pure white etheric energy formed a spiraling beam of light, forcibly repelling several hounds that tried to approach.

"Only a conceptual-level attack can completely wipe them out!"

"Conceptual attack?"

Melusin (the Fairy Knight) sneered in mid-air, and the mechanical dragon wings behind her suddenly unfolded, with dazzling aurora condensing at the muzzle of the cannon.

"Then let's use the firepower that evaporates even 'space' to burn them to ashes!"

"—All the ammunition poured forth! The pure pulse of life!"

White beams of light fell like a torrential rain.

Melusin abandoned precise aiming and chose the most violent method—to bring all the geometric blocks and blind spots in front of her, along with the hunting dogs hidden in the corners, into the range of her firepower!

Boom boom boom boom—!!!

The violent explosion unleashed an energy storm in the imaginary space.

Under the aurora breath of Albion's dragon that "restores everything," the Tindaros hounds, who thought themselves invincible hiding in the dimensional rift, finally let out a mournful howl, and were burned to nothingness along with the space they inhabited.

"Well done, Little Dragon Girl."

Luo Chen snapped his fingers, stopping Melusin from wasting her magic power.

He stared at the geometric maze ahead, now blasted open into a smooth path, his gaze becoming profound.

"The henchmen are mostly dealt with. It's time for the main character to show up."

It seemed to be in response to Luo Chen's words.

The entire imaginary space suddenly fell into absolute silence.

The shattered geometric blocks stopped reassembling, and the aftershocks of the explosion were instantly wiped out by an indescribable force.

In the depths of darkness ahead.

A colossal object composed of billions of spheres shimmering with eerie light slowly emerged.

It has no fixed shape; those spheres are constantly expanding, breaking, and then merging again.

Every birth and death of a sphere is accompanied by countless illusions of the birth and death of universes.

Its mere presence alone creates a suffocating sense of oppression.

That was a terror far beyond Tiamat, far beyond Goetia… an extreme terror belonging to the outer reaches of the universe.

Yog-Sothoth projection.

You have...overstepped your bounds.

There was no sound, but the thought exploded directly in the minds of Luo Chen and the others.

With this thought, Ishtar, Mordred, and even Artoria's faces turned deathly pale.

They felt their spiritual foundation being forcibly filled by some irresistible knowledge.

Those were fragments of the ultimate truth of the universe. For heroic spirits, this knowledge was the most deadly poison, enough to instantly destroy their reason.

Cut off its hearing! Don't try to understand its information!

Scáthach gritted her teeth and quickly inscribed more than a dozen runes on herself and the others to isolate them from mental pollution, but the purple runes began to shatter the moment they touched that intent.

"Playing this kind of low-level mental pollution game in front of me?"

Luo Chen snorted coldly.

Instead of retreating, he took a big step forward.

Boom!

With this step, the [Third Star Particle Body] within Luo Chen's body erupted with an unprecedented roar.

In his pair of crimson-gold vertical pupils, the originally deep purple-gold nebula instantly expanded, forming a visible cosmic phantom on his body surface!

"—Simulated Star Chart: Truth of the Star!"

Luo Chen raised his right hand high, his five fingers suddenly spreading wide.

"My universe will not tolerate the intrusion of any spam!"

"—Full jurisdiction, coverage!"

Buzz—!!!

What kind of power was that?

It doesn't have dazzling special effects or earth-shattering explosions.

It is simply a pure, absolute "truth".

The moment Luo Chen's cosmology unfolded, the Yog-Sothoth projection, which was constantly radiating crazy thoughts outward, seemed to have hit an insurmountable wall of bronze and iron, and all the mental pollution was forcefully bounced back!

Moreover, the distorted non-Euclidean space around them was forcibly "flattened" under Luo Chen's domain.

Those gray-blue geometric blocks turned into ordinary stone slabs, and the nauseating sense of spatial dislocation completely disappeared.

Luo Chen used his absolute mass of [two-digit mass of the Little Garden] to forcibly tear open a "real world" completely under his control within the projection domain of this Outer God!

"call……"

The women, now freed from the mental pollution, were panting heavily.

Ishtar patted her chest, still shaken.

"That was terrifying... For a split second just now, I felt like millions of stars were being stuffed into my head..."

"This is the essence of Outer Gods. Their very existence is the annihilation of lower-dimensional life."

Morgan walked to Luo Chen's side. Although his face was slightly pale, his red eyes shone with a fanatical pride.

"However, before Arthur's Star Truth, even Outer Gods must obediently abide by the physical laws he established."

Luo Chen did not turn around; his gaze was fixed on the huge, glowing sphere in front of him.

"Yog Sothos."

Luo Chen's voice echoed in the space he had forcibly flattened, carrying undisguised arrogance and killing intent.

"Your tricks and charades won't work on me."

"Aren't you known as the 'Master of the Gate'?"

"Today, I'll smash your door down, and reduce your projection, along with this entire imaginary space, to cosmic dust!"

You... arrogant, low-dimensional being...

The glowing sphere began to boil violently.

It seemed to be enraged by Luo Chen's provocation.

Countless enormous tentacles made of pure imaginary magic emerged from the cracks in the sphere, like black lightning tearing through the sky, and frantically attacked Luo Chen and the others.

"Arrogant? No, this is called overwhelming strength."

Luo Chen slowly drew the Excalibur Proto sword from his waist, a sword that had remained sheathed until now.

Instead of dispelling the Wind King's barrier, he directly attached the destructive concept of the [Simulated Star Chart] to the blade.

The sword did not emit light; instead, it turned into an absolute black that devoured all colors.

That is the "Blade of the End," capable of completely erasing any matter or concept that it touches from its very source.

"Girls, watch carefully."

Luo Chen slightly bent his knees, assuming an extremely pure swordsman's starting stance.

"The so-called Outer Gods, when you cut them... are actually no different from cutting sashimi."

The moment the words fell.

Luo Chen's figure disappeared.

next second.

Amidst the countless imaginary tentacles waving across the sky, a jet-black sword line, moving at a speed that disregarded the concepts of time and space, pierced straight through the entire hall!

*Sizzle!*

There was no loud crashing sound.

There was only one extremely piercing sound, like cloth being torn apart.

The dozen or so enormous tentacles, each capable of easily shattering the planet's surface, snapped cleanly and uniformly in two the instant they touched the dark sword line.

No magical energy leaked out from the break, because it was completely "erased" by the concept of [Star Truth] the instant it was severed.

Luo Chen's figure pierced through the tentacles' defensive net and appeared directly in front of the cluster of glowing spheres.

He gripped the sword with both hands, his crimson-gold vertical pupils reflecting the wildly flashing spheres.

"The master of the gate?"

Luo Chen sneered.

"By my sword, you will only face death."

"—Smash it!!!"

The pitch-black holy sword, carrying an overwhelming and terrifying pressure, slashed fiercely at the indescribable object formed from billions of luminous spheres.

There was no deafening explosion, nor any dazzling light.

In this non-Euclidean space distorted by the power of the Outer God, the collision of physics is sublimated into the crushing of concepts.

You... are so arrogant...

Yog Sothoth's projection attempts to unleash a deeper level of imaginary contamination.

In an instant, those glowing spheres began to expand and overlap erratically, attempting to use the "gate power" that transcends three dimensions to banish Luo Chen's sword light, which was powerful enough to shatter stars, to the end of time.

As an "omniscient and omniscient being," it instantly deduced billions of futures, attempting to find an ending where Luo Chen either misses his target or collapses due to being unable to withstand the high-dimensional information.

However, all its deductions turned into a blinding "ERROR" the moment it touched the sword's edge.

"Don't waste your energy."

Luo Chen's voice was like a divine punishment hanging high in the heavens, cold and arrogant.

"I've said it before: in my [Simulated Star Chart], I am the only truth."

"You want to use a multi-dimensional door to exile me?"

"Excuse me, but this sword of mine is only for cutting down all those fancy 'doors'!"

"—Break it off!"

*Sizzle!*

The jet-black Excalibur Proto, enhanced by the absolute mass of Luo Chen's Two-Digit Sandwich, sliced ​​through Yog Sothoth's projection's defenses without any hindrance.

That's not cutting open flesh, but rather abruptly severing the concept of "it standing here"!

Countless glowing spheres shattered one after another like fragile glass beads under the pressure of the black sword.

That sound was like countless miniature universes simultaneously heading towards heat death.

The projection of the Outer God emitted a silent, piercing scream.

Its tentacles, which originally tried to extend into the mortal world, and its arrogance, which tried to pollute this planet, were uprooted as cleanly and decisively as weeds in the face of the Star King's absolute violence!

"Go back and tell those Great Old Ones hiding in the abyss."

Luo Chen flicked his wrist, reversing the blade and completely shredding the remaining imaginary core.

"Earth does not welcome repulsive-looking voyeurs like you."

"If you dare to extend your claws again..."

A burning killing intent ignited in Luo Chen's crimson-gold vertical pupils.

"I, Luo Chen, will surely crush your abyss!"

boom!

With the shattering of the last luminous sphere, the entire Imaginary Number Maze finally succumbed to the violent energy impact and collapsed with a deafening roar.

The distorted space vanished rapidly like receding tides, and the surrounding gray-blue geometric cubes turned into nothingness dust.

That dizzying feeling of weightlessness lasted only half a second.

When their vision cleared again, they found themselves on solid rock.