My youth story, a crossover anime, turns out, is FGO!

It was a sword sealed in its scabbard, but even so, it was a dream sword that mortals could hardly imagine.

The knight continued to fight, his agile and imposing figure drawing everyone's attention.

Even the television helicopter, which had been maintaining a cautious distance, unconsciously moved forward, wanting to see a clearer view of the scene.

The hideous tentacles lashed out at it with a whooshing sound. If the sea monster couldn't hit the knight, couldn't it hit these flying little insects?

Finished!

In that instant, everyone was caught off guard. Rena Mizunashi felt ice-cold all over. Even if she had prepared herself to die, she would have been discovered and executed by the organization, not die meaninglessly like this!

An invisible hurricane surged into the sky, and in a short time, the Old Sword once again released the Wind King's Barrier, but this time not to fight the enemy, but to increase its own speed—

The knight leaped into the air with unimaginable speed, his eyes sharp, and drew his sword!

The arm that was attacking the helicopter was severed in two by a single sword strike, and the knight landed lightly at the helicopter door, in front of Rena Mizunashi and the camera.

"you……"

At this moment, even an undercover agent with rich experience and strong mental fortitude like Rena Mizunashi was speechless, her cheeks inexplicably flushed.

The camera faithfully broadcast this scene; although half her face was covered, her perfect jawline and lip shape still possessed a captivating charm even up close.

"Please stand back."

The knight's voice was gentle and clear, and even his advice was polite.

"This place is extremely dangerous."

Everyone in the helicopter was stunned for a moment, but it was Rena Mizunashi who reacted first: "Yes, we understand."

"thank you very much."

Rena Mizunashi opened her mouth as if to say something, but the knight simply nodded slightly, leaped down again, and instantly severed several of the sea monster's tentacles.

Unfortunately, even though the knight was invincible, the loss of these tentacles was insignificant to the sea monster. Before everyone's eyes, the sea monster's wounds healed rapidly, and soon there were no scars left.

"This is cheating!"

"How could this happen! How can anyone defeat it like this!"

Many people criticized this and even became disheartened.

Some people even took their anger out on the knight.

"What a useless knight! He can't even beat a sea monster!"

Of course, such people are quickly besieged.

"What's upstairs? If you're so capable, why don't you go up there yourself!"

"They're doing this to protect us, what are you spouting nonsense for!"

Rena Mizunashi gripped the handle on the side of the helicopter tightly, half of her body sticking out of the cabin, her beautiful eyes filled with worry.

However, none of this could affect the knight. He swung his sword without hesitation, and its sharpness remained undiminished. Anyone could see that even after fighting for so long, he had never been tired.

That's enough.

Old Sword realized that all the sea monster's attention was focused on him, so he slowly retreated. Actually, he was supposed to fire a light cannon from a distance, but he came alone to divert the sea monster's attention because he was considering the civilians who had not yet escaped far.

The sea monster realized the old sword's intentions and continued to harass it.

"Boom boom boom!"

Where did that gunshot come from? Don't you know it's completely useless?

But unexpectedly, the sea monster let out a scream, and its tentacles were torn apart.

Finally, everyone found the person in the picture. It was a two-headed creature... What was that?!

With big heads, small bodies, and only one eye on their faces, they wear black and red military uniforms and papaya-patterned military caps. They are incredibly cute, like adorable creatures. But this is not just one, but a whole group!

They were wielding rather old-fashioned matchlock guns, but this supposedly weak attack still managed to wound the sea monster.

"Noba!"

The cute creatures made sounds that were hard to understand.

One person looked completely bewildered: "I don't understand!" After all, they didn't even use missiles or machine guns, let alone matchlock guns!

Only those with discernment looked at the papaya-patterned cap badge with suspicion, wondering if it could be...

Perhaps finding it too slow, these adorable creatures pounced on the sea monster and then self-destructed! The enormous energy instantly and severely injured the sea monster, which struggled frantically, its screams audible throughout the entire city of Kobe.

A slight smile curved the lips beneath the old sword's hood: "Thank you."

He whispered, then immediately moved away, maintaining a distance from the sea demon that made it difficult for them to attack him for the time being.

"What is he going to do? Is he going to run away?" someone maliciously speculated.

However, the old sword stood still, holding the sword in both hands. The Wind King's barrier dissipated, the scabbard opened, and the magnificent and dreamlike golden sword revealed its true form for the first time.

"In the name of the Command Seals, Arthur Pendragon, unleash your Noble Phantasm with all your might and defeat the sea monster!"

A command spell vanished, leaving only a faint trace.

In the end, Makoto Aoki gave Old Sword the most important support.

Go all out...

The knight smiled.

"Seal·Thirteen Decision·Start! (Thirteen restraints lifted, roundtable decision begins!)"

Golden mist rose around the silver knight, like the breath of stars, bringing a dazzling and awe-inspiring feeling.

The golden mist seemed to absorb the surrounding light, and the world seemed to fall into silence. However, the places where the light clustered together were so dazzling, just like the figure holding a sword in the center of a golden ocean.

Even through the lens, everyone was breathless at this magnificent scene, a sight they had never seen before. How beautiful, how noble.

However, the truly insightful were drawn to the knight's words.

"Roundtable resolution?"

Rena Mizunashi also noticed the word, and her beautiful emerald eyes looked at the knight's back with surprise and uncertainty.

Could he be...?

"Yes, yes, I'll take care of it this time."

A frivolous, flamboyant, and ethereal male voice rang in my ears.

"This battle is a battle against those stronger than ourselves."

—Acknowledgment, Bedivere

That voice seemed to resonate in everyone's hearts, causing those who knew it to tremble. Bedivere, one of the Knights of the Round Table, so who was the knight now fighting the sea monster...?

The Silver Knight still held the Holy Sword, and a golden light flashed on the sword, seemingly signifying the breaking of a seal.

And this roundtable decision, made by only one person, continues.

"This war is not a war that betrays humanity."

—Acknowledgment, Gahrez

"This battle is not a battle against the elves."

—Acknowledgement, Lancelot

"This battle is a battle to punish evil."

—Admitted, Mordred

"This battle is not fought for personal gain."

—Acknowledgement, Galahad

"This battle is not one where those who seek goodness wield their swords."

—Acknowledgment, Gareth

As the famous names were mentioned one by one, everyone watching the live stream trembled. Yes, this knight really was…

The sea monster let out a huge roar, seemingly knowing that its days were numbered, but its attacking tentacles were either blocked by the two-headed creatures surrounding it or torn apart by the invisible hurricane around the old sword.

"This battle is the battle to save the world."

Finally, the Knight of Azure Silver said in a deep voice.

—Acknowledgement, Arthur

When the guess came true, everyone who had guessed it trembled with excitement.

When the seven seals are broken, the Star Sword will reveal its true power. The old sword changed its grip, with the tip pointing downwards, and swung forward with an indomitable spirit.

"Excalibur! (Sword of Excalibur!)"

A magnificent golden torrent instantly engulfed everything in sight. The enormous sea demon swayed, twisted, and shattered within the stream of light until it vanished into nothingness.

Meanwhile, Gilles de Rais, who was at the center of the Sea Demon and unknown to anyone else, also saw this radiant light.

"God..."

Gilles de Rais was in tears, as if he could see Joan of Arc.

……

With the sea monster no longer shielding them, the stars and moon continued to illuminate the night sky, and the world fell silent.

The knight of the azure silver lowered the tip of his sword, and the once magnificent and incredible golden sword was once again sealed by the scabbard and the invisible hurricane.

He stood quietly on the sea, his silvery silhouette echoing the moonlight, like a solitary and awe-inspiring king.

No, it's not like that, he himself is the king.

"It can't be wrong!"

"The undefeated king who wields the sword of Excalibur, who has fought twelve wars without defeat, the legendary eternal king who is said to return in the future!"

Rena Mizunashi's voice was almost distorted with extreme excitement.

"He is King Arthur!"

Amidst the general excitement, only Makoto Aoki was wailing.

"You overdid it! Using the Star Holy Sword, which has the power to cleave two planets, against the Sea Demon is like using a cannon to kill a mosquito!"