Thanks for the invitation. I'm in Type-Moon, inheriting the legacy of Zi-O.

"Even so, I will show you clearly who I am, the one fighting you!" Paracelsus raised his short sword high, and colorful gems flew from his fingers, forming a dense ring.

"Your opponent is von Hohenheim Paracelsus!" he shouted, while a different color seemed to appear on his short sword. "He is the one who rediscovered the five elements, the three primary substances, and even created the Philosopher's Stone!" Paracelsus closed his eyes, holding the crimson stone in one hand.

“…Is that so?” Nian Zhuo nodded, indicating that he understood. “Knowing that his fate was sealed, he calmly faced death… It was probably just to prove his ‘righteousness’.” However, Nian Zhuo’s face, hidden beneath his mask, gradually became serious.

"Behold my light!" Paracelsus then pulled the jewel on his short sword.

“Guide the true ether. My delusions, the form of my thoughts—” A tremendous force rebounded from his wrists, causing him to involuntarily grip the hilt of his sword with both hands.

Gold, purple, blue, red, and white gemstones surrounded the sword, and instead of shattering, they formed a circle that spun faster and faster.

“…!” Within this circle, Nian Zhuo saw that the rainbow-colored halo was condensing.

"【The Elementalist's Demonic Sword!】(Sword of Paracelsus)——!"

In an instant, the unknown light converged into a colorful magic cannon, which shot straight toward Nianzhuo and the others.

“…Tsk.” Nian Zhuo didn’t say anything more, but instead pressed the dial of Wizard on his waist.

Fiery red wings instantly sprouted from his back, enveloping Nian Zhuo within them.

Crimson Dragon Flame: Undying Righteousness

Aether is a substance conceived by the ancient Greek philosopher Aristotle. It is a hypothetical concept in the history of physics, its meaning evolving with the development of physics. The word "ether" is a transliteration of the English "Ether" or "Aether." The ancient Greeks used it to refer generally to the sky or the upper atmosphere. In Aristotle's view, besides water, fire, air, and earth, there was also an ether residing in the upper atmosphere. Initially, it carried a mystical aura in the history of science. Later, its meaning was gradually expanded, making it a hypothetical substance upon which physicists relied for their thinking during certain historical periods.

Later, ether was also largely associated with the wave theory of light as the carrier of light waves. The wave theory of light was first proposed by R. Hooke and further developed by C. Huygens. For a considerable period (until the early 20th century), the understanding of waves was limited to the mechanical vibrations of a certain medium. This medium was called the wave carrier; for example, air is the carrier of sound waves. Since light can propagate in a vacuum, Huygens proposed that the medium carrying light waves (ether) should fill all space, including the vacuum, and be able to permeate ordinary matter. Besides being a carrier of light waves, Huygens also used ether to explain the phenomenon of gravity.

The ether, a substance once thought to be the medium of light, now shines on the man's blade.

Transform into rainbows, into flowing light, into countless stars filling your eyes.

"What is this—" Instinctively sensing the danger, Mordred and Nianzhuo quickly retreated, while Mashu held up her shield and stood in front of everyone.

At this moment, Nian Zhuo finally remembered that the sword in Paracelsus's hand... wasn't it the same sword that Kirei Kotomine used to stab Tokiomi?

The Elementalist's Magic Sword:

The prototype for the sword Azoth. The cursed sword of Paracelsus.

He used a magical artifact made from the Philosopher's Stone, which he created during his lifetime. The entire blade is made of refined, ultra-high-density Philosopher's Stone.

Its original effect is to amplify, assist, and enhance magic.

He didn't attack his opponent directly with the sword, but instead used the magic contained within it to instantly perform ritual magic, employing all five elements to simulate the true ether that filled the world of the gods. The materialized simulated true ether (pseudo) alone was enough to generate a destructive light that swept across the surroundings.

The rainbow-like light, with its unstoppable momentum, tore the surrounding ground to shreds.

"What dazzling light..." Even Nian Zhuo, who disliked the other party, had to admit that the colorful light was truly too beautiful.

"Oh oh oh oh oh oh—!" Meanwhile, Shakespeare on the side...

Nian Zhuo put away the Time Gun Sword, but took out the Heisei Sword.

“It is precisely because this light of injustice shines so brightly that I want to crush it even more.” Gently raising the serrated blade, Nian Zhuo held the blade in his left hand and slowly ran it across his palm.

As his palm rubbed against the blade, flames gradually swirled around the serrated edge, illuminating his already crimson visor.

"Get ready, Mash, and Mordred." He whispered, as if a red dragon was humming in his ears. He flipped the driver at his waist. "This battle should end."

"Hmph—" Briefly immersed in the beauty of the rainbow, Mordred then gripped the blade in her hand, making a crisp clanging sound. "Do you need to tell me?!" On the blade, the crimson lightning was no longer present, but a stream of light that burned everything.

"Yes, Mr. Nianzhuo! And Senpai, I'm ready!" Mash braced herself against her shield and took a step towards the ground shattered by the rainbow. "Mash Kyrielight! Prepare to attack!"

“No, it’s not time yet…” Ritsuka and Nencho tacitly stopped Mordred from rushing out, watching Paracelsus unleashing his magic.

"...Not there yet, not there yet." Ritsuka stared intently at the other person's figure, secretly calculating in her mind.

"...It's been so long, why haven't you attacked yet?" Paracelsus waved his short sword, which had turned into a rainbow, at Mash, who was resisting in place, without noticing that the thick fog around them was gradually dissipating.

The elementalist's magic sword is not only a rainbow sword that can wield ether, but also a light virus that can analyze and then corrode the surrounding magic.

"—Then, destroy them!" Paracelsus then gripped the demonic sword with both hands. Since the opponent had chosen to defend, he would use the strongest blade to break through their defenses in one fell swoop!

"Ugh—Aaaaaaah!" Holding onto her shield tightly, Mash could even feel the temperature on it becoming scorching hot from the impact, but she still gritted her teeth, her high-heeled boots digging into the ground, desperately trying to keep herself from retreating.

“…Not yet…not yet…!” Ritsuka closed her eyes, gripping her arm tightly, forcing herself to listen to Mashu’s pained voice, “Not yet…”

Then, she felt her breathing become easier, and the feeling of dust obstructing her lungs disappeared.

"Mr. Nianzhuo! Now!" Finally, she couldn't care less about anything else and spoke up immediately.

She saw it; the dim yellow streetlights were so clear, and the surrounding buildings were so...clear.

The thick fog that had obstructed the view and threatened the citizens... had vanished in this area, transforming into the fangs of rainbow-colored swords.

"Received!" Nian Zhuo responded loudly, gripping the flaming blade tightly with both hands as he charged out from behind Mashu.

"What!" Clearly, Paracelsus was also caught off guard by the sudden action, and his hand holding the short sword immediately turned towards Nianzhuo.

The rainbow-colored light moved away from the shield, and Mash, who was already exhausted from just defending, struggled to open her eyes and looked at Nian Zhuo, who had already rushed out.

"Mr. Nianzhuo...you must win..." Mashu's knees buckled and she was about to collapse.

"Hey—" Suddenly, a familiar voice came, and an arm blocked her chest, preventing her from falling.

Mashu turned her head and saw the knight and the girl, their golden hair fluttering in the rainbow-colored light, looking so dreamlike under the streetlights.

"Don't look so pathetic, Mashu." Mordred, holding the sword blade that had transformed into a mass of light in one hand, didn't look at her, but instead stared at Nencho, who had charged forward first. "If you want to stand beside him, don't look like this—"

"Mash! Are you alright?!" Ritsuka rushed over as soon as she saw the attack move away, supporting Mash's body with her shoulder. Her orange eyes were full of worry, and she nodded to Mordred on the other side, "Miss Mordred, I'll take care of Mash. You go and help Nianzhuo."

"...Hmm." Without saying anything more, Mordred withdrew her hand from under Mash's shoulder and gripped the sword blade in her hand again.

At the same time, Nian Zhuo, who was constantly dodging Paracelsus, suddenly turned around and extended his index finger toward Mordred.

Whoosh—the sound of flames burning came from the blade, and Mordred instantly understood what Nian Zhuo had done.

"Ha...that guy really knows how to come up with some new tricks." The flames and light together transformed into a vortex of light and fire.

"..." Naturally, after pausing for a moment, Nian Zhuo looked at the sword light coming towards him and hurriedly swung the Heisei Sword, which was covered in flames, but he was still grazed by the blade and flew backwards towards Mordred.

After his foot touched the ground, he kept pushing hard, but no matter how hard Nianzhuo tried, he couldn't stop immediately on the already shattered ground.

"Ha—!" Suddenly, he felt a push on his back. At that moment, Mordred finally arrived and placed his hand on Nianzhuo's back to help him stop backward.

Then, he pushed him aside and Mordred held the sword horizontally with both hands.

"Take this!" He thrust the sword out with all his might, which had transformed into fire and light.

The accumulated magic power, along with the flames added by the turbidity of thought, formed a huge tornado of fire and light, instantly tearing the already dilapidated ground even more violently.

"...!" Seeing the intense heat even from such a distance, Paracelsus dared not be careless and thrust the released rainbow blade at the sweeping light and flames.

The two energies collided, producing a deafening sound, along with the crackling of flames.

"Now! Go now!" Mordred shouted laboriously to Nianzhuo while desperately resisting the rainbow-colored blade, "If you fail this time, I won't let you off the hook!"

In the midst of their conversation alone, Mordred's tornado of fire and light was already showing signs of being unable to withstand the opponent's rainbow-colored sword blade, and was gradually being devoured by the rainbow-colored sword light.

It makes sense. Trying to fight against an A+ rank Noble Phantasm True Name Release with an attack that doesn't even qualify as a Noble Phantasm True Name Release would have been suicidal in the past.

“...How foolish! It saddens me.” Paracelsus silently shook his head. “Using magic to resist instead of destroying my magic will only lead to its continuous erosion and transformation into your own power... But so be it. In this way, you will have the power to turn all of you to ashes.”

However, just as he was pondering this, the bright red figure had already soared into the sky.

"...This is my righteous cause, my hope! The flame of hope that has been condensed!" he proclaimed loudly, as the enormous dragon wings behind him unfurled.

With one hand, he flipped the driver at his waist, and several phantom images of cards appeared between Nian Zhuo and Paracelsus.

"Sever all ties, fulfill my wish—" With both hands gripping the sword blade, Nian Zhuo raised it straight up and charged down from the sky towards Paracelsus.

"This is it! My final blow!"

"Finish Time—!"

"Dual Time BreakStrike Wizard——!"

Nian Zhuo's wings flapped, breaking through layer after layer of card illusions, and his figure became increasingly crimson, like a shooting star falling into the sky.

“…Damn it!” Paracelsus couldn’t help but panic. Now he had no choice but to temporarily abandon Mordred. Since he was going to get injured anyway, he would deal with the more threatening enemy first!

The rainbow-colored light shot straight towards the crimson flames that Nianzhuo had fallen from, accompanied by a piercing sound and a bright flash.

"Don't underestimate me!" Although the tornado of flames and light was mostly devoured by the attack, there were still remnants on the blade, so Mordred charged toward Paracelsus once more.

On the other side, Nianzhuo was frantically flapping his wings, the flame-wrapped sword blade colliding with the shining rainbow light stream.

It absorbed Mordred's magic power, and although not all of it, the flow of magical energy was still greatly enhanced.

"This is troublesome." Paracelsus looked at Mordred charging towards him, and several gems instantly appeared in his free hand, which he then shot at Mordred.

"Don't even think about it!" Instantly, crimson lightning flashed on the blade, and Mordred moved swiftly, slicing all the incoming gems to pieces. The magic within them was shattered before it could even be cast.

As Mordred watched the distance between herself and Paracelsus shrink, she instantly activated her helmet and tilted her head back, crashing into the incoming gem.

Instantly, the hidden magic activated, and blazing flames appeared, engulfing Mordred's figure.

"—!" Paracelsus couldn't help but widen his eyes. "What kind of absurd fighting style is this!"

But what happened next was even more unexpected.

A figure engulfed in flames broke through the barrier of fire.

It was Mordred. Although her armor was charred and her face had some black marks from taking a spell, her body was still covered in black marks.

But because of this, the distance between her and Paracelsus has been shrinking, and in a few seconds her blade will be able to reach his body.

"Ah—!" On the other side, Nian Zhuo thrust the sword out with both hands, and the surging flames transformed into the head of a red dragon, which opened its mouth wide and bit the colorful light stream to pieces.

"Now, I'll say it again!" The red dragon opened and closed its mouth, swallowing the light bit by bit. Nian Zhuo stared angrily at Paracelsus's face.

"For the greater good, let us sacrifice ourselves!"

Finally, the rainbow light on the short sword in his hand completely disappeared, and the red dragon opened its mouth wide, with scorching flames surging forth.

At the same time, Mordred arrived with Crimson Lightning, his sword slashing across the opponent's abdomen.

"Ugh—Pfft—!" Blood spurted from his mouth, but Paracelsus did not retreat. Instead, he raised his head and looked at the oncoming head of the fire dragon.

"Ah...ah..." He finally understood how...full of life this flame was.

"...The root cause, no, that kind of thing doesn't matter." He shook his head, and the moment he came into contact with the flames, his clothes turned to ashes.

"Be the flame of atonement that descends upon me."

Then, the flames of the Fiery Dragon completely engulfed his figure. A bright red rose bloomed on the spot where he stood.