Although Kayneth complained, he wasn't slow in running away.
Lancer, who had been protecting him, gave Yusei a meaningful glance.
'That swordsmanship was definitely not normal.'
'How could such an existence possibly be the Ruler Class? Without a doubt, that swordsmanship called Kuzuryusen was a peerless killing technique.'
Lancer could conclude that among all the Heroic Spirits he knew, none could evade that Kuzuryusen. It was an attack on a dimensional level… not merely a single sword strike, but nine overlapping strikes from different dimensions!
Yusei followed behind them leisurely.
Soon, members from the Saber, Rider, and Archer Factions, drawn by the disturbance caused by Caster, arrived.
"This... what kind of monster is this?"
Everyone stared in astonishment at the roaring giant monstrosity before them.
Yusei approached them and explained, "This is the result of Caster's rampage. Currently, it's known to possess astonishing regenerative abilities and the power to summon familiars. If we don't eliminate it in one go, it will likely regenerate within seconds."
"Eliminate it in one go?" Rider stroked his beard, looking troubled, "I don't think my Chariot of God can destroy it completely in one strike."
He turned to look at Archer, "You're the King of Heroes, right? Do you have a method? With all your Noble Phantasms, you should be able to wipe it out in one shot, shouldn't you?"
"Hmph. This King will not bother with such a mongrel. Furthermore, my treasures will not be wasted on this ugly sludge." Gilgamesh showed no intention of acting, which made Tokiomi, standing nearby, anxious.
"That's truly a pity," Rider said, rubbing his head.
Saber hesitated for a moment, then stepped forward and looked at Yusei.
"I can use my Noble Phantasm to destroy it in one go, but..."
"But what? If there's a problem, I will do my utmost to help," Yusei said seriously, looking at Saber.
"It's my arm. My arm was injured by Lancer's Noble Phantasm. But to use my Noble Phantasm, I need to be in perfect condition."
Hearing this, Kayneth, standing to the side, immediately felt displeased.
However, Lancer had already stepped forward.
"If it can eliminate this monster, I will break my own weapon for that purpose!"
Gáe Buidhe, the Yellow Rose of Mortality.
Seeing all the other factions looking at him, Kayneth could only nod helplessly.
"I agree. Bring us victory, Lancer!"
"Yes, my lord!"
With that, Lancer directly snapped his spear.
Feeling the previously unhealable wound on her arm beginning to mend, Saber raised her Noble Phantasm. Magical energy gathered around her, concentrating on her sword.
"Excalibur!"
A massive torrent of magical energy impacted the monster's body, gradually consuming it. Even with its powerful regeneration, it could not withstand the onslaught of this Anti-Fortress Noble Phantasm.
Watching this scene, a smile appeared at the corner of Yusei's mouth.
He took a step back and used his Ruler Authority.
"Archer, kill yourself!"
This voice, neither loud nor soft, made everyone present freeze for a moment.
Gilgamesh was especially stunned, because a Noble Phantasm from his Gate of Babylon had already pierced through his own chest.
"You... mongrel!"
Before anyone could react, Yusei had already appeared behind Saber. His right hand, formed into a blade, directly pierced through Saber's heart.
Saber, in the middle of releasing her Noble Phantasm, had no chance to dodge.
With her body severely wounded, her Noble Phantasm gradually ceased. The monster formed from Caster also dissipated into magical energy under this attack.
By now, Saber's body could no longer withstand the collapse of her Spirit Origin. She looked at Yusei with confusion and hatred.
"Ruler... you... why?"
Yusei looked at Saber, gently held her in his arms, and whispered, "I'm sorry. I need the Holy Grail. If there's a chance, I will make it up to you."
Saber wanted to say something more, but she had already dissolved into particles of light and vanished.
This series of sudden changes shocked everyone, and they immediately grew wary of Yusei.
"Ruler... no, are you really the Ruler?"
Yusei paid them no mind. He commanded Berserker to immediately attack Lancer, and the two instantly became locked in combat.
And so, the troublesome Archer and Saber were gone, leaving only those who were easier to deal with.
A smile spread across Yusei's face.
"Masters, I have no intention of causing unnecessary slaughter. I only seek the Holy Grail. In other words, I will only kill the Servants, provided you Masters do not resist."
With that, Yusei's figure vanished, his sword leaving its sheath.
"Kuzuryusen!"
"Army of the King... Damn it, no time...!"
After nine flashes of sword light, Rider fell, unable to even deploy his Ionian Hetairoi.
Rider was a commander, not a warrior. As a warrior, his basic parameters were simply too low.
If Saber had been the one to face that move just now, relying on her Instinct, she might have survived, but she would likely have been severely injured.
After all, Kuzuryusen was the ultimate human-killing technique!
It was almost like a whirlwind cleaning up dried leaves. In no time, the only Servants remaining in this Holy Grail War were Lancer and Berserker, who were still fighting, and Assassin.
Yusei completely ignored the Masters. He directly cooperated with Berserker to kill Lancer, and immediately after finishing him, he commanded Sakura to use a Command Spell to make Berserker commit suicide.
Thus, six Servants had withdrawn from this Holy Grail War.
The rapid absorption of the Servants' souls caused Irisviel unbearable agony.
"Your fight is over. Do not interfere in my affairs, or you will die without your Servants!" Yusei threatened, then directly took Irisviel away.
As for the final Servant, the Assassin Hassans, Yusei wasn't in a hurry.
He only needed to wait at the Ryuudou Temple for his skill cooldown to reset the next day and then command Assassin to kill himself.
The next day, early in the morning, Yusei waited at the Ryuudou Temple. Looking at the manifested Holy Grail, he felt excited. His mission was about to be completed, which meant his soul would become immortal, granting him eternal life!
"By the power of the Command Spell, I command you, Assassin, kill yourself!"
As the command was issued, the soul of the final Servant entered the Holy Grail.
Instantly, endless black mud surged forth… the evil of humanity. But it was utterly useless before the system.
Yusei silently recited in his heart: "System, submit the mission."
Soon, Yusei, having completed the mission, felt his entirely new body.
"Is this eternal life? Amazing. I feel like I possess limitless power now!"
A smile appeared on Yusei's face.
'Once I find a reliable person to entrust Sakura to, he could return.'
'Eternal life... my brand new life was about to begin!'