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

The morning in Komao Town was tinged with a lingering mist and the coolness of early summer.

In the backyard of the "Fairy Palace," shrouded in a pale blue fairy barrier, Rias, the next head of the Gremory family, was carrying a bucket filled with high-purity magical spring water, walking stiffly across the neatly trimmed lawn.

Her signature red hair was tied back with a simple hairband, and her black and white maid outfit fluttered gently in the breeze.

In the past, having a pure-blooded demon princess do such menial tasks as watering and feeding would have caused a huge uproar throughout the underworld.

but now……

"Waaah..."

A low, aggrieved, and even slightly ingratiating growl came from ahead.

Rias's hand trembled, and the water in the bucket almost spilled.

She swallowed hard, forcing herself to look up at the two creatures lying on the ground "waiting to be fed."

On the left is Fenrir, the Norse god-slaying wolf whose size was forcibly compressed to just over three meters tall by Morgan using fairy magic, yet still exuding a terrifying and ferocious aura.

At this moment, it was sitting obediently on the ground like a real large husky, its fluffy tail sweeping behind it, and its wolf eyes, which should have been devouring gods, were now staring longingly at the bucket of water in Rias's hand.

On the right is the new member who just "moved in" last night.

True Crimson Dragon God Emperor, Great Red.

This once magnificent dragon, which soared through dimensional rifts and was regarded as an invincible symbol by the entire DXD world, is now being treated no better than Fenrir.

A chain of light made of pure [Star Ether] was tied around its neck, and its enormous body was compressed to a length of about five meters.

Its ruby-like scales still bore the cracks inflicted by Luo Chen's punch last night. It lay lifeless on the grass, occasionally spitting out a faint spark from its nostrils, like a wronged wife who dared not utter a sound.

"Um... please have some water..."

Rias cautiously placed the bucket between the two "mythical watchdogs," then took five steps back at the fastest speed she had ever gone.

"Smack smack".

Fenrir unceremoniously plunged his large head into the bucket and began to drink voraciously.

Great Red lazily raised his eyelids, glanced at Fenrir, and seemed to think that it was beneath his status as a dragon emperor to compete with this wolf for water, so he arrogantly turned his head to the side.

"Oh dear, this red lizard doesn't seem to have much of an appetite. Woof!"

With a light footstep, Tamamo Neko, carrying a large, gleaming cleaver, strolled out from the back door of the kitchen.

Her fox ears twitched excitedly, her gaze sweeping over Great Red's cracked dragon tail, and suspicious drool dripped from the corner of her mouth.

"My master said it's fine as long as we don't kill it. Since it won't drink water, could the cat cut off a tiny bit of the dragon's tail to make some 'Dream Broth'? Just a tiny bit! It'll definitely grow back!"

"roar!!!"

Upon hearing this, Great Red, who had been so arrogant just moments before, instantly bristled, tucking its tail under its belly. Its massive dragon head even displayed a terrified expression that seemed to say, "Don't come any closer!"

"Xiaoyu, stop fooling around."

A lazy yet magnetic male voice drifted from the second-floor terrace.

Luo Chen was wearing a loose black silk nightgown, the neckline slightly open, revealing his well-defined collarbone and strong chest.

He leaned against the white marble railing, holding a freshly brewed cup of black coffee. His crimson-gold vertical pupils, carrying a hint of waking-up nonchalance, surveyed the farce unfolding in the backyard.

"That guy's flesh is full of high-dimensional fantasy concepts. If you actually cut it off and cook it into soup, eating it will only give you all sorts of bizarre nightmares. It has no nutritional value whatsoever."

"Oh? I see... That's such a pity. Woof."

Disappointed, Tamamo-neko put away the cleaver, sighed, and turned to slip back into the kitchen.

"Good morning, Lord Luo Chen."

Rias quickly turned around and respectfully bowed to Luo Chen on the second floor in a maid's salute.

"morning."

Luo Chen nodded slightly, his gaze falling on Rias's beautiful face, which was pale with nervousness, and a gentle smile appeared on his lips.

"Thank you for your hard work, Rias. Taking care of these two big guys is no easy task. Go to the living room later and find Ishtar, ask her to give you some 'overtime pay'."

"No, no need! It's my pleasure to serve you!"

Rias was flattered and quickly waved her hand.

Are you kidding me? Going to that miserly goddess to ask for overtime pay?

She was afraid that she would be blasted out by the opponent's light cannon from the Skyship.

"Click".

The floor-to-ceiling window behind Luo Chen was pushed open.

Morgan Le Fey emerged wearing a deep purple haute couture trench coat.

Her long, silver hair, as white as moonlight, was casually tied up with a wooden hairpin, and her ruby-like eyes revealed a wisdom and aloofness that seemed to see through everything.

She walked to Luo Chen's side very naturally, took the coffee cup from his hand, took a sip herself, and then frowned slightly.

"It's too bitter. You seem to be enjoying these stimulating drinks more and more lately."

"It's nice to change things up sometimes."

Luo Chen took the opportunity to put his arm around her slender waist and pull her into his embrace, resting his chin gently on her shoulder.

"Why didn't you sleep a little longer? You stayed up until midnight last night to modify the barrier in this backyard."

"If it weren't for some unscrupulous man who was groping me while modifying the barrier, I would have rested long ago."

Morgan snorted, but leaned against Luo Chen's broad chest with obvious pleasure.

She glanced at the two "mythical pets" in the courtyard below, and her tone became somewhat serious.

"Arthur, although you captured that red dragon, the dimensional rift has lost its master's suppression, and coupled with the turmoil we caused there yesterday... the underlying laws of this world seem to be experiencing some stress reactions."

"Stress response?"

Luo Chen raised an eyebrow.

"Um."

Morgan lightly tapped his fingertip in the air, and a dark blue magic screen unfolded in front of the two of them.

The screen displays a diagram of the magical energy fluctuations throughout the entire High School DxD world.

At that moment, in a corner of the map, a massive, ink-black energy was expanding and spreading wildly.

"These are images transmitted back by the detection magic I left on the edge of the underworld. Some extremely ancient and pure concept of 'evil' and 'destruction' is awakening. If I'm not mistaken, that should be the 'ultimate weapon' that this world originally intended to use as a last resort."

"666 (Trihexa), the beast of the apocalypse."

Luo Chen looked at the ball of black energy and called out the name.

"You know?"

Morgan was somewhat surprised.

"I know a little about it. Legend has it that even the God of the Bible could not destroy it, and could only seal it away at the end of the world as a doomsday monster."

Luo Chen stroked his chin, his crimson-gold pupils showing not worry but rather a hint of interest.

"It seems that the guy named Li Zevim from the old Demon King's faction, before he died, left some kind of backup plan that triggered the seal. Or perhaps, this world sensed the threat posed by us 'outsiders' and instinctively released its strongest immune cells."

Just as the two were talking.

Om-! ! !

Suddenly, an extremely piercing alarm sounded in the hall of the Fairy Palace.

Immediately following, accompanied by the magical fluctuations as space was forcibly torn apart, three disheveled figures fell directly onto the expensive Persian carpet in the hall.

Sazex Lucifer, Azazel, and Archangel Michael.

These three world giants, who had come here yesterday to bow their heads and sign a "territory-ceding treaty," are now in an extremely sorry state.

Sazex's demon king robes were torn in half, Azazel's black feathers were scattered in pieces, and Michael's golden halo appeared dim and lackluster.

"Lord Luo Chen! Help! Help me!"

Sazex scrambled to his feet from the carpet, not even bothering to wipe the blood from his mouth, and knelt down on one knee facing the second-floor terrace, his voice filled with utter despair.

"The seal... is broken!"

"The Beast of Apocalypse (Trihexa)... That monster has awakened! It has breached the last line of defense of the Underworld and is advancing towards the human world! Once it descends, the entire world will be reduced to nothing in an instant!"

"What's the rush?"

Luo Chen, holding Morgan's hand, walked down the spiral staircase at a leisurely pace.

He looked at the three giants, who resembled stray dogs, and spoke in a calm tone, as if discussing the weather.

"It's just a caged wild animal, and you three are so terrified? Where did your usual world-conquering arrogance go?"

"Your Excellency, you don't understand!"

Azazel shook his head with a bitter smile, his eyes filled with resentment.

"That's no ordinary beast! It's a calamity, a fusion of countless negative concepts, devoid of reason, and driven solely by a pure desire for destruction! Even the gods at their peak could only seal it away with all their might! Now that the gods are gone, our three factions combined couldn't even last a minute against it!"

"If that's the case, then don't stand in the way."

A clear, cold, and sharp voice, filled with boundless fighting spirit, came from the side door of the living room.

Artoria (Saber), dressed in her classic blue and white battle dress and wielding an invisible sword, strode out.

His ahoge (cowlick) stood straight up, and his emerald green eyes burned with the absolute brilliance of a knight king.

"Any beast that attempts to destroy the world and trample on innocent lives deserves to be cleaved by the holy sword. Master, please allow me to go into battle."

"How could I miss out on this chance to show off!"

Mordred (Little Mordred), carrying the greatsword modified by Alexandre Dumas, jumped out from the other side of the corridor, grinning excitedly.

"Dad! I'm practically rusting from staying in this wretched town for the past two days! That 666 Calamity Beast, the name sounds intimidating, but I wonder if it'll be enough for me to chop ten times!"

"How rude."

Scáthach had somehow ended up leaning against the liquor cabinet on the first floor.

Today, she was dressed in a tight-fitting purple-black suit, holding a glass of red wine in her hand. Her wine-red eyes swept over the three giants with undisguised contempt.

"It's nothing but a mindless calamity. In the Land of Shadows, such a thing isn't even qualified to be a trial target for my disciples."

She downed the glass of red wine in one gulp and casually summoned two dark red magic guns.

"Let's go, Master. Let's get rid of that big guy while breakfast is still digested. I'm really looking forward to having Tama's seafood risotto for lunch."

Looking at this group of women who didn't seem to care about the "end of the world" at all, the three of them exchanged bewildered glances.

They knew these people were strong, but that was the Beast of Apocalypse!

It's a monster that even the god who created the world couldn't kill!

How could they act as if they were going on a picnic or hunting trip?!

"Since everyone is in the mood, let's go stretch our muscles."

Luo Chen walked to the center of the hall, his crimson-gold vertical pupils narrowing slightly.

He was well aware of how difficult Trihexa was to deal with.

In the original story, it was something that required countless powerful individuals to pay a huge price to barely reseal.

But that's just the original work.

In this place, which is entirely under his control by the "Three-Digit Small Garden" domain, any calamity can only obediently remain dormant.

"Ophis".

Luo Chen called out.

"……exist."

The gothic lolita girl, who had been sitting quietly in the corner of the sofa eating her bear-shaped cookies, looked up.

Those empty black eyes stared at Luo Chen, as if waiting for instructions.

"Keep an eye on the house. If Tiamat throws a tantrum, just give her a piece of cake."

Luo Chen gently stroked her soft black hair, then turned around, his black trench coat fluttering in the magical energy.

"System, coordinates locked: Location of the Beast of Apocalypse."

"All personnel, launch!"

……

At the intersection of the underworld and the human world, at the edge of a dimensional rift.

This place has been completely turned into a living hell.

The sky was torn open with countless huge black cracks, the earth cracked like a spider web, and scalding magma gushed out from the ground.

In that endless sea of ​​fire and chaos, a colossal creature beyond description was uttering a soul-shaking roar.

It has the head of a lion, the wings of a dragon, the tail of a venomous snake, and a body as large as a mountain range.

Every movement could cause the space to collapse, and every breath carried a terrifying poisonous mist capable of melting steel.

【Mark of the Beast · 666】

The Beast of Revelation, Trihexa.

"Roarooooo—!!!"

The calamity beast opened its abyss-like maw, and seven orbs of light, each a different color and representing a different concept of destruction, condensed deep within its throat. This was a long-range destructive strike capable of instantly evaporating the entire Japanese archipelago.

At this critical moment.

Om-! ! !

A dazzling golden beam of light, seemingly capable of cleaving this chaotic world in two, plummeted straight down from the sky without warning!

That was no ordinary attack, but an ultimate slash that combined the breath of the stars and the endless hope of mankind!

"—Excalibur!!!"

Boom!!!

The golden sword light sliced ​​through the seven orbs of destructive light that hadn't even had a chance to launch in two, as easily as cutting tofu!

Not only that, the sword energy was still powerful, and it slashed hard at the extremely hard back scales of the calamity beast, leaving a terrifying wound several meters deep on it!

"What?!"

Sazex, Azazel, and the others, who were observing from a distance, nearly popped their eyes out.

That's a body that even gods couldn't penetrate! It was actually wounded by a single sword strike?!

"It's too shallow! Saber! Didn't you eat?!"

With a wild laugh, Mordred transformed into a crimson bolt of lightning and charged directly to the flank of the calamity beast.

The [Radiant King Sword], modified by Alexandre Dumas, burst forth with a blinding red light, the roar of its engine intertwining with the lightning released by its magic.

"—Smash it for me!!!"

Mordred gripped his sword with both hands, and with an unstoppable momentum, slammed it hard into the joint of one of the monstrous hind legs.

Click!

The sound of bones breaking could be clearly heard amidst the thunder.

The calamity beast's massive body suddenly tilted, and it was actually knocked half a step back by the force of the blow!

"roar!!!"

The calamity beast, having been repeatedly and severely damaged, was utterly enraged.

Its long, barbed snake tail swept out like a black lightning bolt, carrying a powerful gust of wind that tore through space, and lashed out fiercely at Artoria and Mordred in mid-air.

"It's in the way."

A cold voice rang out in the air.

No action was observed.

But the serpent's tail, powerful enough to shatter mountains, suddenly froze in mid-air.

The concept of death, a deep purple-black color, instantly spread across the entire tail, like a decaying, withered tree.

Scáthach had somehow positioned herself above the calamity beast's tail, her [Piercing Death Spear] deeply embedded in its scales.

"You beast, you dare to flaunt your body in front of me? You're far too presumptuous."

Scáthach sneered and twisted her magic spear sharply.

Bang!

The entire enormous serpent tail, under the corrosive influence of the Death Rune, exploded into a shower of black blood!

The perfect teamwork of the three top-tier Servants dealt a heavy blow to the legendary, invincible Doomsday Beast in less than ten seconds.

"This...this is the fighting force under Lord Luo Chen's command..."

Michael, watching from afar, broke out in a cold sweat. He was now incredibly grateful that he had chosen to kneel and submit.

With this level of combat power, let alone the three major factions, even if all the gods of all ages were brought out, it would only result in a few more deaths.

However, Trihexa, as the embodiment of destruction, is not so easily defeated.

The excruciating pain of having its tail severed completely unleashed its ferocity.

Its lion head roared to the sky, and the surrounding space began to collapse on a large scale.

The black miasma spread outwards like a tsunami. This miasma not only has extremely strong corrosive properties, but it can also directly pollute the spirit foundation of heroic spirits!

"Beware! That is a poisonous barrier containing primordial evil!"

Azazel shouted a reminder.

But his reminder was clearly unnecessary.

"It's really ugly."

Morgan le Fay, holding a black magic umbrella, walked to the front of the battlefield as if strolling in the rain.

Faced with the overwhelming black miasma, the fairy queen didn't even lift an eyelid.

She simply turned the umbrella handle in her hand slightly.

【Fairy Realm - Lake of Immaculate Beauty (Avalon)】

A pure, deep blue, absolute defensive barrier instantly unfolded around her.

The black miasma that even the gods feared was instantly purified and vanished without a trace the moment it touched this blue barrier, just like the first snow meeting the blazing sun!

"Leave the defense to me."

Morgan's ruby-like eyes gazed at the sky, a proud smile playing on her lips.

"The rest is up to you, Arthur."

High in the sky.

Luo Chen hovered directly above the calamity beast.

He neither drew the holy sword nor took out the holy spear.

He simply stood with his hands in his trench coat pockets, looking down at the frantically struggling monster.

There was not a ripple in his crimson-gold vertical pupils.

"The so-called invincible monsters are just a reflection of the fact that the potential of this world is too low."

Luo Chen slowly withdrew his right hand, and suddenly clenched his fist in the air.

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

The entire domain of [Sandbox Two-Digit] is fully revealed at this moment without reservation!

【Simulated Star Chart Creation: The Truth of the Stars】—【Dimensional Extrusion】!

"Give me……"

Luo Chen's voice, like a final judgment from a god, resounded throughout the entire world.

"—Become a glass ball."

Buzz—!!!

The terrifying gravitational field, beyond description, instantly locked down all spatial coordinates around Trihexa.

This is not ordinary gravity.

This is a dimensional reduction attack that forcibly compresses the mass of an entire miniature galaxy into a single point!

"Roar... Ughh ...

The Beast of Apocalypse let out the most mournful and desperate scream in history.

Its body, which even gods could not destroy, began to shrink, collapse, and shatter wildly under the pressure of this mass that transcended the laws of the universe!

Space is wailing, time is standing still.

In just three seconds.

The colossal, mountain-like doomsday beast was compressed and compressed again before the eyes of Sazex and the others, who looked as if they had seen a ghost!

finally.

It was accompanied by a soft "pop" sound.

The once invincible Trihexa has vanished completely.

Only a high-purity magic crystal, no bigger than a marble and shimmering with a dark red light, remained, silently suspended in mid-air.

Luo Chen landed from the air, casually picked up the crystal in his hand, and tossed it twice.

"The purity is decent. If I take it back to Alexandre Dumas as material, I reckon it can be used to make a pretty good Mystic Code."

He turned his head and looked at the three giants in the distance, who had been completely petrified, with a slight smile on his lips.

"What are you looking at? The crisis is over. Remember to repair this piece of land."

After saying that, Luo Chen snapped his fingers, and a golden spatial gate opened behind everyone.

"Let's go home. Xiaoyu's sukiyaki is probably overcooked."

In the dead silence, the black-clad king, accompanied by his group of stunningly beautiful followers, calmly stepped into the portal of light.

All that's left is this world, whose combat power ceiling has been completely overturned, lying in disarray in the wind.