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

Rewind a bit, and the heroic spirits on Earth were also beginning their final battle against Tiamat.

The sixty-meter-long dragon ravaged the entire Land of Shadows, and everyone could feel the earth trembling. Unlike in space, where Qin Shi Huang restricted Tiamat's reproduction, Tiamat's eleven sons were born at this time. Possessing god-level spirit origins, they flocked to the Heroic Spirits.

"Hahaha, this is what real battle and slaughter should be like!" Achilles wiped the bloodstains on his cheek with his thumb. He was one of the Heroic Spirits who was in relatively good condition, since the previous Lahm did not have divinity.

But now, Barrahmud really can hurt him!

"Come on!" Achilles roared, his muscles bulging, and swung his meteor spear, knocking down Balrahim, who was trying to pounce on him.

"The Light of the Sun (Lumière du Soleil)!"

Charlemagne, unusually revealing his royal demeanor, swept away Juvayus. The power of the five elements gathered, and the dazzling light almost exerted the effect of a Noble Phantasm, severing the scythe-like foot of one of the Baallahmu.

"As a paladin, I won't lose to you guys, that would be too uncool!"

Charlemagne swept his longsword across the room, exuding an aura of dignified nobility. His royal aura seemed to be constantly rising, and the strength he could unleash was becoming stronger and stronger.

"As expected of His Majesty." Paladin Roland nodded, his fighting spirit surging. "Get your spirits up and start stripping!"

"What did you say?!" Charlemagne was startled and nearly knocked down by Balrahmu beside him.

“No, I won’t take it off,” Roland quickly retorted.

"Don't take it off! Don't!" Charlemagne forced Barrahmu back with his sword, then turned to Roland through gritted teeth and said, "Heroes from all over the world have gathered here!"

In other words, you'll lose face in front of the whole world.

That being said, Roland's Master, thank you for your hard work.

As if walking in a secluded valley, no one could see his figure; only a flash of dark sword light, and a Rahm was cut in two.

The old man in the mountain was ghostly, but whenever destiny came, he would unleash that fatal sword strike. The terrifying sword light even made the heroic spirits feel immense pressure.

"Wow, that's amazing, old man." Cú Chulainn had just exchanged blows with a Balrahmu when he saw the old man's clean and decisive slashes and couldn't help but exclaim in admiration.

"In that case, I can't lose!"

Kulin's hound grinned menacingly: "Come on, you ugly monsters!"

Sakata Ryoma and Arlong, and Sigurd and Brunhilde, these two couples also cooperated very well, even dealing with the god-level Rahm with ease.

Finn and Diarmuid are a very powerful master-servant pair with excellent teamwork.

Although Joan of Arc is not good at fighting, she will provide support according to the situation, after all, she has fourteen Command Seals.

At that moment, a solitary yet resolute figure rushed towards Tiamat while the eleventh son of Tiamat was entangled with the other Heroic Spirits.

“Aaaaaaaaaaa——”

Tiamat noticed the ants rushing towards her. She roared, whipping up gusts of wind in an attempt to drive them away.

"Projection, start (Trace on)!" Red A Lang raised his hand, and a jet-black longbow appeared. He held the longbow and chanted softly.

Tiamat's hurricane struck Red A, leaving deep, bone-revealing wounds even with the protection of the Red Wild Dogs. Yet, the man remained unmoved, continuing with his actions.

The magic circuits all over his body emitted a faint blue light, and a "sword" slowly emerged in the void. It was a spiral-shaped sword.

Red A nocked his sword and aimed at Tiamat's head. The massive Tiamat had no chance to dodge.

"Pseudo-Spiral Sword (Caladbolg II) - "

Shouting the true name of the Noble Phantasm, stirring up a chaotic flow of magical energy, the arrow was released from the bow!

The swiftly flying arrow tumbled through the air in a chaotic rush, leaving an eerie straight line in mid-air as it streaked past.

A surge of powerful magic, accompanied by a silver meteor, swept towards Tiamat with unstoppable momentum.

"Aaaaaaaa!! Aaaaaaaa——"

Tiamat opened her enormous maw, which stretched to her shoulders, and roared. Her shriek caused a change in the airflow, turning into a violent hurricane that rushed towards Red A's fantasy collapse.

A surge of immense magical power erupted, transforming into a pure white light that instantly captivated everyone's attention.

Even though the attack, gained in exchange for the explosion of the pseudo-spiral sword, only caused Tiamat to pause slightly.

What Red A wants to gain is this brief period of time.

I am the bone of my sword. (My body is the very essence of my sword.)

Steel is my body, and fire is my blood. (My blood is as hard as iron, my heart as pure as glass.)

With a steady voice, Archer chanted, but his hands did not stop moving. Under the effect of projection magic, blue light fragments gathered, and dozens of Noble Phantasms appeared in the air.

I have created over a thousand blades. (I have fought countless battles without ever being defeated.)

Unknown to Death (Never once defeated)

Nor known to life. (Never found a true friend.)

As if drawn on a fully drawn bowstring, these Noble Phantasms paused for a moment before shooting off like arrows, enveloped in blue light, towards Tiamat.

He often stood atop the hill of swords, reveling in victory.

More than a dozen Noble Phantasms, each with its own unique brilliance, hurtled toward Tiamat's head, drawing upon their own destruction to gain even greater destructive power.

Originally, these were all lower-level counterfeits, and the nameless Servants could not unleash the Noble Phantasms of these heroes. However, in pursuit of the power of a one-time explosion, they could still exert power equivalent to the release of a Noble Phantasm.

Even if the explosion couldn't harm Tiamat, it successfully enraged her, causing her to shake her massive limbs and let out a shriek.

"Aaaaaaaa——Aaaaaaaa——"

In her crimson star-like eyes, intense magical energy surged, and a cross of light, accompanied by destructive magic, bloomed within them, its target the weak heroic spirit who dared to provoke her.

"Yet, those hands will never hold anything. (Therefore, this life has no meaning.)"

At this moment, Archer's Noble Phantasm had reached its final line. He hadn't stopped for a moment, and was now covered in wounds.

Blue light fragments appeared in his hands, gathering into a pair of black and white blades. Red A slashed them out fiercely, just managing to block a sneak attack from Barrahim. He used Barrahim's force to send himself flying towards Tiamat.

finally--

"So as I pray, Unlimited Blade Works. (This body is destined to be born for the sword. Unlimited Blade Works)"

"He's going to deploy his Reality Marble within my domain?" Skadi showed a hint of surprise. "Though he's an unnamed Heroic Spirit, he's still a worthy warrior. I will love you, Nameless One."

Endless ice and snow blocked Tiamat's attack, standing in front of the red-clad hero. The crimson beam collided with the ice and snow, and the clash of magic distorted the atmosphere, producing a faint, eerie sound.

The hurricane that swept through the area even affected the heroic spirits who were still fighting.

Blue flames spread beneath the feet of the red-clad hero, the magic circuits within his body trembled, squeezing out magic power to reverse the world.

Not enough! Not enough magic! Red A was tormented, squeezing every last drop of magic from every magic circuit.

"In the name of the Command Spell, I give support to Shirou Emiya!" Jeanne d'Arc, who possesses the power to see through true names and the judgment of the gods, provided timely support.

She even used two Command Seals in one go, believing in this nameless heroic spirit.

Magic surged forth from the spirit core once more, this time with immense abundance, warming the entire body.

Red A glanced subtly at Skadi and Jeanne, then nodded slightly in gratitude.

The magical power surging from his spiritual core, igniting his entire body, along with the endless loneliness and suffering in his heart, turned the whole world upside down.