Drawing on his past experiences and their time together, Rovey clearly understood Scáthach's personality. Once she made up her mind, no one could force her to change it, not even her Master. If he tried, she would undoubtedly let her opponent go.
So, Rovey decided to go with the flow and replied to Scáthach.
"Since it's your opponent, you decide, Scáthach."
"You agree? Master."
Hearing Rovey so easily agree to her willful request, Scáthach was clearly a little surprised. She dispersed the runes hidden in her hand and revealed a smile. She had actually been prepared to defy the Command Seal.
But she never expected her Master to be so understanding...
This made her somewhat surprised and happy.
Indeed, partnering with someone smart and compatible saved a lot of effort. Clearly, her Master was the kind of compatible person she had hoped for.
"Cough, cough..."
As Scáthach advanced, Artoria, who was heavily wounded, coughed up several mouthfuls of blood. Her injuries were severe, and she was clearly cornered.
"The Breath of the Star, Gathered..."
Gritting her teeth, Artoria prepared to abandon everything and go all out with her Noble Phantasm. Just as she was about to speak its true name...
"Arrrrrrrr—!!!"
A furious roar suddenly burst into the battlefield.
Both Saber, who was about to activate her Noble Phantasm, and Scáthach, who was preparing to leave, froze. Then, a dark figure slammed into the battlefield like a cannonball.
—Boom!!!
The dark figure, its violent aura, and the piercing roar that echoed across the battlefield momentarily left both individuals present with ringing ears. They then saw a terrifying figure, crouching on the ground like a hunting hound, emerge from the thick smoke.
Berserker.
"...Lancelot, why did he come here too? Is he going to attack King Arthur?"
Looking at the dark figure that had suddenly appeared before her, Scáthach's expression was one of confusion, and she also felt a sense of foreboding.
She had seen Lancelot's hatred for King Arthur before, and his relentless, furious pursuit.
Artoria, who had just taken a hit from her Noble Phantasm, was in no condition to withstand the ferocious assault of this Knight of the Lake, who was like a rabid dog. She had to intervene.
"It's Berserker! Is there a new enemy?"
Dragging her heavily injured body, Artoria took a few steps back, her expression growing more grim. With Lancer and Berserker both here, plus the other two Heroic Spirits on the other battlefield, she was completely surrounded. Escaping unscathed was no longer an option.
"Lancer, I'll help you."
Following the appearance of the black knight, a young man with a somewhat foolish look on his face appeared behind him amidst the billowing smoke.
The newcomer was Matou Kariya...
About an hour earlier.
Matou Residence.
While the Assassins were attacking Kirei, Matou Zouken received a call from Rovey.
After a moment of thought, he summoned Matou Kariya to the living room.
"Did you understand the situation?"
After roughly explaining what was happening, Matou Zouken asked indifferently.
He hadn't expected that brat Tokiomi Tohsaka to team up with the Einzbern family to attack Kirei and deploy multiple Servants.
And coincidentally, Kirei also had multiple Servants helping him. It was highly likely that a three-on-three free-for-all would break out.
In that case, it was also necessary for him to send his Berserker into the fray.
Although he had allied with Rovey, he also had his own little schemes, deliberately instructing Matou Kariya to arrive a little later.
He wanted the situation to become a three-on-three, and then, once some Servants had suffered casualties, Berserker would enter to clean up the mess and expand his advantage. If possible...
He hoped that Tokiomi Tohsaka's Servant, Kirei, and Rovey's powerful Servant would all fight each other to the death, leaving them both severely weakened...
This way, his Berserker could easily clean up the aftermath and achieve victory.
That damned Old Worm is still scheming against others, how insidious...
After hearing Matou Zouken's instructions, Matou Kariya cursed his baseness inwardly, growing even more disgusted by his actions.
"I understand, clean up the mess and take down Tokiomi Tohsaka's Servant, right?"
However, he was under someone else's roof and had no choice but to endure and wait for the right moment.
Matou Kariya confidently patted his chest and declared that everything from now on was his responsibility.
In the end, wasn't it just about causing trouble for Tokiomi Tohsaka? That was his favorite thing to do.
No matter who it was, if they were going to fight Tokiomi Tohsaka, he, Matou Kariya, would have to help!
And so, this scene unfolded.
Matou Kariya, who had just arrived at the scene, looked around but couldn't find any sign of Assassin or Archer, feeling a bit surprised.
After searching the surroundings for a while, Berserker, who was beside him, seemed to sense something and immediately pulled him along, rushing towards this direction at high speed.
He didn't know what he was getting into until he saw it, and then he was shocked.
Scáthach and a heavily injured Artoria appeared on the battlefield at the same time.
Although Matou Kariya knew this Saber wasn't Tokiomi Tohsaka's Servant, he also knew Scáthach was his ally. So, by extension, Scáthach's enemy was his enemy.
Therefore, he unhesitatingly issued an order to Lancelot beside him.
"Alright, go, Berserker. Haven't you always wanted to fight this Saber? Your chance is here."
Matou Kariya pointed at the Saber in front of him with great momentum, and then Berserker turned and charged towards Scáthach.
His dark body fiercely protected Artoria behind him, causing everyone present to freeze for a moment.
Matou Kariya's expression was confused: "Huh?"
Then he hurriedly shouted at him, "Come back quickly, Berserker! I told you to attack Saber, not Lancer!!"
However, the charging Lancelot completely ignored his commands and continued to charge straight at Scáthach.
"Is it out of control?"
This scene caused Artoria, who had been in a desperate situation, to freeze in surprise.
She looked up at the charging back of the black knight and felt a sense of familiarity.
Could it be...
Just as she was about to recall something, the communicator in her sleeve rang with Emiya Kiritsugu's rather urgent voice.
"What are you still spacing out for? Saber, take advantage of their internal conflict and retreat quickly! I've already had Maiya prepare transportation nearby!"
"Oh... Oh, okay."
Hearing Emiya Kiritsugu's urgent call, Artoria couldn't afford to dwell on the question in her mind.
She quickly got up from the ground, then released her mana to increase her speed, and fled towards the ruined street without looking back.
Before leaving, she even remembered to express her gratitude to Berserker, who was holding off Scáthach for her.
"Arrrrrrr—!!!"
This expression of gratitude only made the already unstable Berserker even more ferocious.
This scene also left Matou Kariya speechless. He hurriedly waved at Scáthach to show his innocence.
"No, it's really not me, I'm not with that Saber!"
"And Berserker, what exactly do you want to do? Hurry up and get back here!"
Seeing Berserker, who had ruined everything and let Saber escape, Matou Kariya became even more furious and let out a string of curses.
However, stimulated by Saber's severe injury, Berserker in front of him had clearly not calmed down and still regarded Scáthach as the enemy.
...Has he completely gone mad?
"This is really troublesome."
Seeing this, Scáthach, who had no intention of pursuing Saber, couldn't help but frown.
Although Scáthach wanted to save face for Berserker as an ally, she couldn't stand it anymore.
"I'll help you calm down a bit, Knight of the Lake."
Thus, amidst Matou Kariya's shouts, the two Servants who should have been on the same side began a new round of battle on the ruins.
"Stop it! Please stop fighting!"
"I beg you, stop fighting!"
With Matou Kariya's clearly inappropriate shouts, the battle between the two Servants seemed to take on a strange hue.
Seeing this, even Rovey couldn't help but cover his face and sigh, "Forget it, let them play by themselves."
Since Saber had already left, as long as Scáthach didn't go all out and use her Noble Phantasm, Lancelot's swordsmanship should be fine.
However, seeing Lancelot's abnormal behavior, Rovey re-evaluated the uncertainty surrounding him.
It was fine if he didn't encounter Artoria, but as soon as he did, he would pounce on her like a stray dog begging for a fight.
You couldn't help him, and he wouldn't appreciate it. Instead, if you harmed Artoria, he would bite back, which was exactly what was happening now.
Overall evaluation: a pure stray dog. Although his combat power was good, his brain was not. If he continued to stay, he would likely cause trouble.
Coincidentally, Matou Kariya still had Command Seals he hadn't used, the troublesome Assassin had already retreated, and the heavily injured Saber wouldn't cause much of a stir in a short period. Coupled with the three Servants he had just integrated, everything was ready.
He might as well use up Matou Kariya's Command Seals and finish things quickly with Tokiomi Tohsaka...
Matou Kariya's body wouldn't last much longer if he continued to push himself like this, so some things should be put on the agenda. Moreover, his plan was nearing completion.
Since that was the case, it was time to take the Old Worm's life, or rather, to help him ascend.
For Makiri Zolgen, what he was about to do was an act of kindness and mercy.
"——Amen."
He whispered with a look of mercy.
"This... this is..."
Based on the familiars still remaining on the battlefield, Tokiomi Tohsaka could still monitor the situation. Upon hearing that familiar voice, his expression froze.
"It's... Matou Kariya?!"
"Matou Kariya?"
Not only Tokiomi Tohsaka, but Kirei Kotomine, upon hearing the name, also froze. He asked, "Didn't he abandon the magic path and leave Fuyuki City? Without ever receiving proper training, how could he become a magus in such a short time..."
"That's probably why he chose the easiest Servant to control, Berserker... It seems the Matou family really hasn't given up."
Tokiomi Tohsaka frowned and calmly analyzed.
"But if the Matou family's Servant isn't the expected Caster and Scáthach, but another Berserker, and Kவிக்கும்'s Servant is Fionn mac Cumhaill, and the child named Weber Velvet summoned Rider, then who are the Masters of Caster and Scáthach in this Holy Grail War?"
Tokiomi Tohsaka frowned, his eyes revealing deep confusion.
With Matou Kariya's appearance, all his previous predictions were overturned, and the situation had now become utterly bewildering.
Even his Assassin had already been eliminated, yet he still couldn't figure out who the Masters of Caster and Scáthach were, or which faction they belonged to.
He had initially thought Matou Zouken was manipulating Caster to initiate this, as there weren't many people besides the old head of the Matou family who were so familiar with the rules and could perform illegal summons, but...
He, Matou Kariya, could also become a Master?
This was difficult for Tokiomi Tohsaka to accept.
He certainly knew Matou Kariya very well.
He was his defeated opponent, and the only one in the current generation of the Matou family with talent in magecraft, originally the heir to the magic path that Matou Zouken had placed great hopes on.
Tokiomi Tohsaka had to admit that in terms of talent alone, Matou Kariya might indeed be a tiny bit stronger than him, but Tokiomi Tohsaka didn't care.