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

The underworld, the territory of Gremory, deep within the Demon King's castle.

The current Demon King Lucifer—Sazex Lucifer—is standing solemnly in front of a huge communication water mirror.

This red-haired demon king, who wielded absolute authority in the underworld and was renowned for his destructive magic beyond measure, was now sweating profusely.

On the other side of the water mirror is his sister, Rias Gremory, who is the lord of Kuoh Town in the human world.

"...That's how it is, elder brother."

Rias's voice was filled with deep weariness and an undisguised fear.

Her usually beautiful face, always radiating a confident smile, was now deathly pale.

"In just one night, the spiritual veins of the back mountain of Kuoh Town were completely and forcibly rewritten. The magical density emitted by that European-style mansion that appeared out of nowhere... no, it can no longer be called magic, it is a kind of 'rule' that transcends our understanding."

"My familiar... Issei, the God-Slaying Gear [Red Dragon Emperor's Gauntlets] within him was stripped away by that black-clad man's subordinate with his bare hands. Not only that, that girl with silver dragon wings directly ate the soul of one of the Two Celestial Dragons... like a snack."

"Click."

The pen made of obsidian from the underworld in Sazex's hand was unconsciously crushed into powder by him.

His eye twitched violently.

"Stripping the God-Slaying Gear with bare hands...devouring the souls of the two Heavenly Dragons alive..."

Sazex took a deep breath, forcing himself to calm down, but the turmoil surging within him could not be quelled.

"Rias, are you sure you haven't fallen under some kind of high-level illusion? Even the Great Red or the Infinite Dragon God Orpheus couldn't possibly wipe out Draig's existence so easily!"

"I am perfectly lucid, elder brother."

Rias gave a bitter laugh, her eyes filled with a desperate clarity.

"When that man looked at me, I even felt the chill of death. It felt... as if if I dared to show even the slightest hostility, the entire Gremory family would be wiped off the face of the earth in an instant."

"Kumaoh Town is no longer our territory. That man has declared his takeover."

A long, deathly silence fell over both ends of the water mirror.

After a long silence, Sazex rubbed his throbbing temples, his tone becoming more serious than ever before.

"Rias, listen carefully. From this moment on, restrain all your servants. Absolutely, absolutely never, ever go near that mansion!"

"Whether it's Azazel, the fallen angel, or Michael, the celestial being, I will immediately negotiate with them. Until the true nature of those monsters is ascertained, the three factions must maintain absolute silence."

"If they need anything, fulfill it to the best of your ability. Treat them as... no, treat them as 'forbidden' beings, even more dangerous than the true Crimson Dragon God Emperor!"

After cutting off the communication, Sazex slumped helplessly into his large office chair.

"The witch who stripped away the God-Slaying Gear with her bare hands... the girl who devoured the dragon's soul... and that unfathomable man in black..."

"What kind of monster has this world... just encountered?"

……

Meanwhile, in the back mountain of Koma-no-Town, the fairy left the palace.

In stark contrast to the tense atmosphere of the underworld, where everyone is on high alert, this newly arrived magic mansion is filled with the languid tranquility of early morning.

"Phew... The air here isn't as good as in the Age of Gods, but at least it doesn't have that nauseating smell of blood."

On the second-floor terrace, Scáthach wore a loose black silk robe, her long, purplish-red hair casually draped over her snow-white shoulders.

She held a cup of black coffee in her hand, her wine-red eyes looking down at the vibrant Japanese town below the mountain.

Behind her, Luo Chen was leaning back in a recliner, flipping through a book about the "Demon Chess Piece" system of this world.

"It's just a basic energy conversion system. Compared to the materialization of the soul in the third magic, this method of stuffing the soul into the chess piece is far too crude."

Luo Chen casually tossed the illustrated guide onto the table and yawned.

"However, as a toy for leisure, it barely passes muster."

"What? Master, you're interested in those lowly demons with bat wings?"

Scáthach turned around, walked over to Luo Chen with her long legs, and straddled his strong thighs.

She lowered her head, the collar of her robe slightly open, revealing a breathtaking glimpse of snow-white skin.

"If you need to kill time, I can go and smash through that so-called underworld anytime and capture their demon king for you to have fun with."

"No need. They're a bunch of natives who've never even heard of the concept of stars. They're not worth your personal attention, Master."

Luo Chen put his arm around Scáthach's waist, feeling its amazing elasticity, and chuckled.

"I came into this world for a vacation, not to be a laborer. I made the rules last night, so today I should enjoy this rare modern life."

"Speaking of enjoyment..."

Morgan's cold, yet slightly disdainful voice came from the direction of the hall.

The Fairy Queen, dressed in a deep purple haute couture trench coat, was slowly descending the stairs.

"Arthur, I have cleaned up the spiritual veins of this mountain. I have completely erased the crude barriers left by those demons and fallen angels. Now, this is an absolutely clean 'Avalon'."

"However, we're running low on food supplies. Yesterday, that gluttonous girl, Melusin, not only ate a moldy Dragon Ball (Dragon), but also stole half of the Wagyu beef we had in the kitchen in the middle of the night. If you don't want everyone to go hungry at noon today, you'd better go shopping now."

"Aaaaaa……"

When Larva, who was lying on the sofa watching TV, heard the words "hungry", she immediately turned her head in a pitiful manner, her pink and purple cross-shaped eyes looking at Luo Chen expectantly, and her little stomach made a "grumble" sound in perfect cooperation.

"Okay, okay, I'll go right away."

Luo Chen patted Scáthach's waist helplessly, signaling her to get up.

He stood up, and in a soft light, his loungewear automatically transformed into a well-tailored black casual suit.

"Saber".

Luo Chen looked at Artoria, who was diligently wiping the holy sword to the side.

"Change your clothes and come down the mountain with me."

Upon hearing the command, Artoria's eyes lit up instantly, and the ahoge (cowlick) on her head stood up straight like a radar.

"Yes, Master!"

Being able to go out shopping alone with Luo Chen (and sample the delicacies of this world) is definitely the highest level of privilege for the Knight King.

……

Komao Town, Central Commercial Street.

At 10 a.m., the sun was shining brightly.

Even without the original protagonist, Issei Hyoudou, the town continues to operate at its original pace.

Students attend classes at school, while office workers rush about on the streets.

Luo Chen and Artoria walked side by side on the bustling street.

Today, Artoria changed into a sky-blue knee-length dress with a white knitted cardigan over it, and her long golden hair was simply tied back with a hairband.

Having shed her heavy silver armor, she now looked like a vibrant foreign student, pure and noble.

With their exceptional good looks, the two of them would turn heads almost every time they walked down the street.

However, the subtle aura of authority emanating from Luo Chen deterred those who tried to strike up a conversation.

"Hmm... this food called 'takoyaki' has a crispy exterior and a soft interior. Paired with this rich sauce and bonito flakes that seem to dance, it's simply a masterpiece of everyday cuisine!"

Artoria was holding a plate of takoyaki she had just bought. Although she tried her best to maintain a ladylike demeanor, she ate at an astonishing speed.

In less than a minute, the box of takoyaki was empty.

"Eat slowly, there's plenty more ahead."

Luo Chen, carrying several shopping bags (filled with various kinds of high-end meats), smiled and handed over a tissue.

"In this world, you can eat as much as you want. After all, you don't have to worry about running out of magic power."

"That's natural. As a knight, maintaining a sufficient calorie intake at all times is the foundation for sustaining combat effectiveness."

Saber spouted nonsense with a straight face, then his gaze swept across the street like a searchlight to the burger shop.

"Master, I smell an extremely high-quality aroma of baked flatbread and grilled beef. May I request permission to conduct tactical reconnaissance at that base called 'M's'?"

"Granted."

Luo Chen chuckled to himself.

The two crossed the street, preparing to enter the burger shop.

Suddenly, Luo Chen paused slightly, his crimson-gold vertical pupils sweeping towards a small alleyway beside him.

At the entrance of that dark alley, a young girl dressed in a loose nun's habit was squatting.

She had long, golden hair that shone like the sun, but it was now covered in dust.

Her delicate, doll-like face was filled with helplessness and exhaustion, and her emerald green eyes even glistened with tears.

She was trying to put a coin into an old vending machine, but due to a malfunction, the coin was swallowed and not even a bottle of water came out.

"Lord...is this a test of my wavering faith...?"

The girl patted the vending machine pitifully, and her stomach let out a long, mournful cry.

Asia Argento.

Because she possessed the divine artifact "Twilight Healing," which could heal demons and fallen angels, she was considered a heretic and expelled by the church. Now, she is a lost nun who has been deceived by the fallen angel Renalee and has wandered alone to this town of Kuoh.

"Gurgle..."

Just as Elsa was about to faint from hunger, an extremely tempting paper bag, exuding a rich aroma of meat, was suddenly handed to her.

"Why?"

Elsa paused for a moment, then looked over the paper bag.

What comes into view is a blonde female knight with a dignified air, as if she stepped out of a painting (although she is currently wearing modern clothes).

Artoria looked at the girl squatting on the ground, her stomach growling with hunger, and it was as if she saw the common people who had suffered from hunger in Britain back then. The knight's heart was instantly touched with pity.

"Here you go, this is the cheese and beef burger I just bought. I've already eaten one, but if you don't mind, you can have this untouched one."

Although Saber's tone was somewhat stiff, her movements were extremely gentle.

"This...this food is so precious, can I really have it?"

Aisha swallowed hard, staring at Artoria in disbelief.

"But I don't have the money to pay you..."

"A knight's assistance requires no reward."

Artoria stuffed the paper bag into her hand, then stood up and retreated to Luo Chen's side.

"Thank you... thank you so much!"

Elsa was so moved that tears welled up in her eyes.

She held the hamburger in both hands as if it were a sacred object, and took a very careful bite.

That was the most delicious food she had eaten during all those days of wandering.

Luo Chen stood to the side, looking at the nun who was so naive that she seemed a little silly, and the corners of his mouth turned up slightly.

Hyoudou Issei, that good-for-nothing, has already been ruined by him. If this little white rabbit continues to follow the original plot, he will only be drained of his divine artifacts by those fallen angels and die, and in the end, Rias will pick him up and turn him into a demon familiar.

But now, this city is Luo Chen's territory.

"What's your name?"

Luo Chen looked at Aisha, his tone calm yet possessing an irresistible charm.

"I...I am called Elsa, Elsa Argento."

Aisha quickly stood up, somewhat awkwardly patted the dust off her nun's habit, and bowed deeply to Luo Chen.

"I am a nun. I came to this city to... to meet with a church liaison."

"The church's contact person?"

Luo Chen chuckled lightly, a hint of mockery flashing in his crimson-gold eyes.

"Little nun, your God hasn't assigned you any contact person in this town."

"Waiting for you in this town is only a flock of crows with black wings. What they want is not your faith, but the toy inside you."

"Black...wings?"

Aisha froze, her emerald green eyes filled with confusion and panic.

"What are you saying? I...I don't understand..."

"It's okay if you don't understand. You'll understand soon enough."

Luo Chen had just finished speaking.

The surrounding air suddenly became extremely cold, and the originally bright sunlight seemed to be covered by an invisible black curtain.

From the shadows deep within the alley came several nauseating, malicious laughs.

"Oh my, what a touching scene."

Accompanied by the sound of flapping wings, several fallen angels dressed in black trench coats and with black wings on their backs slowly descended from mid-air.

Leading the group was a fallen angel wearing a top hat and with a sinister look in his eyes—Donashik.

He looked at Aisha, who was being protected by Luo Chen and Saber, and let out a harsh, cold laugh.

"I originally wanted to let this little lamb run around a bit longer, but I didn't expect it to be stopped by some ignorant ordinary people."

Donashik glanced at Luo Chen with disdain, completely disregarding this man who had no magical energy fluctuations.

"Hey, you humans over there. Hand over that nun. I'm in a good mood today, so I might consider leaving you with a complete corpse."

"F-Fallen angel?!"

Elsa was trembling with fear. Although she had been expelled from the church, she remained a devout believer.

Upon seeing this legendary evil creature, I instinctively felt fear.

"Why...why is a fallen angel here?"

"Because they are what you call 'contacts'."

Luo Chen didn't even glance at the fallen angels, but simply turned his head and said something indifferently to Artoria beside him.

"Saber".

"These crows are ruining my walk. I'll get rid of them."

"Remember, don't make the streets too dirty. We're going to buy dessert later."

"Understood, Master."

Artoria took a step forward.

She didn't even dispel the Wind King's barrier; the invisible sword emitted a low hum in the air.

"Huh? Just you, a woman?"

Donasik seemed to have heard the biggest joke in the world. He suddenly waved his hand, and a light gun made of dark red light appeared in his hand.

"Since you want to die, then I'll grant your wish!"

"Die! You vile insect!"

The light gun, accompanied by a whistling sound, headed straight for Artoria's face.

however.

Compared to this Knight King, who possesses a four-digit spirit level and wields the Star Holy Sword, the attack of this mid-level fallen angel is more laughable than a baby's toy.

"Too slow."

Artoria's cool voice echoed through the alley.

I didn't see her swing her sword.

All that could be heard was a very clear "clang" from the sword.

next second.

The light spear Donasik threw broke in two without warning when it was three meters away from Artoria, turning into specks of light and dissipating.

Donasik's expression froze completely.

An indescribable pain shot through the roots of his prized black wings.

"Pfft—!!!"

Black blood gushed out from his back like a fountain!

"Aaaaaaahhhhhh!!! My wings!!"

Donasik let out a piercing scream as he slammed heavily to the ground like a tattered sandbag, convulsing violently.

The pair of fallen angel wings on his back had been severed at the root by an invisible sword aura!

The low-level fallen angels behind him didn't even have time to scream before they were shredded into countless pieces of flesh and blood under the terrifying pressure of the sword!

Sold out instantly.

A swift and decisive victory, without any suspense or reason.

"This...how is this possible..."

Donasik lay in a pool of blood, staring in horror at the blonde girl whose hair was perfectly intact.

This is not human power at all!

With swordsmanship of this caliber and such terrifying magical density, even the leaders of the Fallen Angels would have to kneel before them!

"That noisy crow doesn't even deserve to make me draw my sword."

Artoria coldly looked down at the wreckage on the ground, without a trace of pity in her eyes.

Elsa, standing behind, was completely dumbfounded.

The hamburger in her hand fell to the ground, her small mouth slightly open, her emerald green eyes filled with shock.

Those legendary, terrifying fallen angels couldn't even last a second against this beautiful female knight.

"Now, do you understand, little sister?"

Luo Chen walked up to Aisha and looked down at her.

"Your god has abandoned you. And those who claim to be gods just want to drain you dry."

Luo Chen stretched out his hand, his crimson-gold vertical pupils possessing an irresistible magic that seemed to see right through her soul.

"Since your god doesn't want you anymore."

"Since you have nowhere to go."

"From this day forward, you belong to me."

"Follow me. In my territory, no one will dare to lay a finger on you."

Luo Chen's lips curled into an extremely domineering smile.

"Including those so-called gods and demon kings."

Elsa stared blankly at the hand reaching out to her.

After enduring a journey of rejection, disdain, and deception, this hand was like a beam of strong light shining into the endless darkness.

She didn't know who this man was, nor how strong he was.

But she knew that at this moment, her soul had found its home.

"I...I do..."

Aisha reached out her hands, trembling, and tightly grasped Luo Chen's palms, tears streaming down her face like broken pearls.

"As long as you don't despise me... Elsa is willing... to serve you forever."

"very good."

Luo Chen pulled the blonde nun up with satisfaction.

"Let's go home. Xiaoyu should have already prepared lunch."

He didn't even glance at the fallen angel still barely clinging to life on the ground, and with Saber and his newly acquired "little accessory," he turned and walked out of the alley.

On this sunny morning.

The balance of power among the three major forces in Kouwang Town was once again shattered by Luo Chen's seemingly casual "passing by while grocery shopping."