A certain crossover anime's nuclear-powered sword immortal

Clang!

Once again, their swords clashed, and dazzling sparks flew everywhere. The barrier began to crack as they fought, and Hephaestus's wounds multiplied.

Although Shirou's physical strength was no less than that of the 'Disobedient Gods', and even stronger, Hephaestus possessed a divine artifact comparable to an EX Noble Phantasm, which did cause some damage to Shirou.

Even so, Shirou's fighting spirit remained incredibly high, leaving Hephaestus in disbelief.

"Such a powerful physique is something even a god-slayer couldn't possess. Just who are you?!"

"Can't you people ask something different?!"

Shirou looked at the 'God of Fire and Craftsmen' with some speechlessness. The azure magic power that seemed to be tangible was constantly surging out of his body, making it look from a distance as if he was burning with blue flames.

Shirou's figure appeared in mid-air in an instant.

"Projection... 'The Great God's Declaration'!"

In Shirou's hands, a golden spear was thus formed.

"Declaration of the Great God"

Grade: A++

Type: Anti-God Noble Phantasm

This Noble Phantasm is the "Spear of Fate" wielded by Odin, the chief god of Norse mythology. Its power is exceptionally strong; once thrown, it is like a meteor, guaranteed to kill its target.

In the past, Shirou would never have been able to project this Noble Phantasm, but now it's not difficult for him to do so.

He is now able to project all types of Noble Phantasms below EX rank, and can achieve the same level and quality as the original.

Projecting an A++ level Noble Phantasm is already the limit that 'Unlimited Blade Works' can achieve.

Gripping the "Great God's Declaration" tightly, Shirou hurled the spear fiercely at Hephaestus.

Whoosh!

Hephaestus swung his pure white greatsword, shattering the spear that was hurtling towards him.

"Nothing more than that!"

As Hephaestus spoke, his pupils were instantly filled with golden light.

Light shines across the sky, heaven and earth gleam!

Tens of thousands of "god-level declarations" rained down like a storm!

This time, Hephaestus could no longer resist. The golden spear streaked across the sky, piercing Hephaestus's body like a meteor shower.

As he pierced through, Shirou unhesitatingly detonated this A++-rank Noble Phantasm.

The terrifying magic destroyed the gun, releasing its power and engulfing everything!

boom----!

Chapter Twenty-Five: Devouring Gods, the Strongest Demon King!

After a violent, earth-shattering explosion, a massive crater thousands of meters deep appeared in this mental landscape, and Hephaestus's body landed in the center like an ant.

Hephaestus, supporting himself with his pure white greatsword, struggled to his feet and glared at Shirou through gritted teeth.

"This power... is definitely not the authority of a god!"

The "Declaration of the Great God" projected by Shirou did cause some damage to Hephaestus, but the latter's divine body still withstood it and did not die under the bombardment.

Why don't you guess why I've been fighting with you for so long?

As Shirou approached Hephaestus, he spoke casually.

Just as Hephaestus was wondering about this, Shirou's figure suddenly disappeared from the spot with a sonic boom.

It was so fast that Hephaestus didn't even have time to react, and it arrived in front of him in the blink of an eye.

"Varied----!?"

Hephaestus' pupils contracted sharply, his body tensed involuntarily, and he instinctively wanted to swing his pure white greatsword to kill Shirou.

However, his body was already exhausted from the long battle with Shirou, and his energy was also low. He didn't even have time to react before Shirou grabbed the pure white greatsword in his hand and kicked him in the stomach.

Bang!

With a dull thud, Hephaestus's body flew backward like an arrow released from a bow.

Shirou held the pure white greatsword in his hand, observing this divine weapon with great curiosity.

"Is this a divine weapon comparable to an EX Noble Phantasm...? Its quality is truly excellent."

Even the best weapon can only be used to its fullest potential if the user is right.

Shirou gripped the pure white greatsword tightly, and azure magic began to swirl around its blade, like a demon king defiling a virgin on his bed, turning the pristine white blade a jet-black color.

"No----!!!"

Hephaestus, lying on the ground, saw Shirou continuously pouring magical energy into the pure white greatsword he had painstakingly forged, and his pupils widened in fury.

"How dare you steal the divine artifact I painstakingly forged! Godslayer—you deserve to die!"

ah! ! ! "

Enraged, Hephaestus swung his iron hammer and pounded the ground with all his might.

Instantly, the entire space was shaken again, and this time the force was even greater. The space itself began to show signs of shattering glass, and the sky was torn apart, creating a spacetime rift.

This was a desperate strike from Hephaestus, delivered with excruciating pain, and it nearly shattered the natural barrier.

"Tsk... The mental landscape is already teetering on the brink of collapse; it can't be delayed any longer!"

Shirou frowned slightly as he looked at the torn sky and the shattered surrounding space.

If the battle isn't resolved quickly, who knows what Hephaestus might do once this space breaks down and he returns to reality.

If he were to summon all eleven other main gods, Shirou would truly have no way to fight them head-on.

After all, Hephaestus's power had already reached the point where he could wash the earth's surface, so the power of the 'King of Gods' Zeus would only be stronger. Coupled with the siege of other main gods, there was still a great risk for Shirou.

We absolutely cannot let Hephaestus leave!

With that thought in mind, Shirou moved again.

In Hephaestus's eyes, Shirou's figure was now so fast that he could only be seen as a blue streak of light.

Sizzle—!

As the sword pierced his body, Hephaestus's pupils contracted sharply as he stared in disbelief at the red-haired boy standing before him.

"This is impossible……"

The hammer in his hand fell to the ground, and then Hephaestus glared at Shirou with gritted teeth and bloodshot eyes.

"The gods will not let you get away with this... you god-slayer who dared to challenge divine authority...!"

Hearing Hephaestus's hateful words, Shirou responded without a care.

"Then I will give Ragnarok to the gods, until all the gods are wiped out!"

After making this statement, Shirou suddenly gripped the hilt of his black greatsword and activated his power.

"Doomsday Proclamation!"

In Norse mythology, beside the roots of the World Tree, which leads to Nibelungen, the land of the dead, lurks a black dragon named Nidhogg, who, along with countless other snakes, coils around and gnaws at the roots. When the roots are devoured, the World Tree decays, and the world is destroyed.

This power was formed by the black dragon Nidhogg devouring the Root of the World, and it possesses the power to devour all beings at the level of the World Tree.

"Die here!"

Golden divine power surged along the black sword and all flowed towards Shirou, while Hephaestus's body gradually became transparent and finally dissipated into specks of light.

Everything returned to nothingness. Shirou looked at the mental landscape of this "realm barrier." The twilight scenery in the sky was incredibly beautiful, but a story of god-slaying was taking place in the wasteland below.

“This sword… how about we call it ‘Twilight’?” Shirou murmured to himself, looking at the jet-black greatsword in his hand.

At the same time, the black greatsword in Shirou's hand also absorbed a portion of the divine power, and golden patterns began to appear on its blade.

"So, does this mean it's fallen into depravity just because I touched it...? Something feels off..."

Shirou raised an eyebrow, then placed the demonic sword into the system space and immediately dispelled the inherent barrier.

The moment the Reality Marble was dispelled, the world within Shirou's vision underwent a sudden change, turning into a pure white expanse.

Upon arriving at the 'Born of Immortality' once again, Shirou did not fall asleep from exhaustion like he had after the last great battle.

Therefore, Shirou's ability to stand here full of energy, surveying this pure white landscape with a scrutinizing gaze, is all thanks to the divine power he just acquired from Hephaestus, one of the twelve Olympian gods of Greece.

“Your excellence surprised me. Being able to defeat Hephaestus, the god of fire and blacksmiths, one of the twelve Olympian gods, is enough to prove that your strength is already very outstanding.”

As Shirou curiously observed this pure white realm, a captivating female voice came from behind him. Shirou recognized the voice immediately; it was the goddess Pandora.

Shirou turned around and looked at the petite girl who barely reached his shoulder.

Pandora, dressed in a cool white dress, looked up at Shirou. Her delicate and dignified face was more cute than beautiful. Her figure was slender, but she inexplicably gave people the feeling of a mature woman.

“‘The realm of life and immortality,’ huh? I didn’t get a proper look at this place last time, but now I can finally see the whole panorama.” Shirou ignored Pandora’s words and instead surveyed the pure white realm around him.

Pandora stomped her foot in anger at Shirou's dismissive attitude.

"Hey! Get your head down!"

Upon hearing her voice, Shirou looked down at her with a hint of helplessness.

"What?"

Shirou's current strength far surpasses that of any other 'Godslayer', even surpassing the strongest among the 'Disobedient Gods'.

They won by a large margin.

While Shirou was lost in thought, Pandora saw him standing in front of her, still daydreaming, and angrily punched him twice with her little fist.

"What a naughty child! 'Mom' has something very important to tell you now!"

Feeling something soft and weak touch his body twice, Shirou stopped his somewhat complicated thoughts, then leaned down slightly and pricked up his ears to listen to what this goddess had to tell him.

"What's all this secrecy about, Pando..."

Just as Shirou opened his mouth, Pandora stretched out his index finger and touched his lips.

The petite girl puffed out her beautiful, slightly cute face and said with a hint of displeasure.

"Call her 'Mommy'!"