Mount Ryudo Great Cavern.
Manaka slowly led Angra Mainyu to the greater grail. With a wave of her small hand, the black hole that Zouken Matou had only managed to open with great difficulty using black mud, command spells, and a Noble Phantasm appeared before Manaka with ease.
Watching the black mud pouring out from the black hole, Manaka playfully caught some in her palm to examine it. After a while, perhaps having lost interest in the black mud, she flicked it away and stepped into the black hole, leading Angra Mainyu with her.
Upon entering the black hole, Manaka discovered Shinji, who was under the protection of avalon. However, Manaka had no intention of paying any attention to Shinji and simply said to Angra Mainyu.
"Are you willing to do me a favor?"
Manaka tilted her head and looked at Angra Mainyu beside her with a cruel expression. Angra Mainyu ignored her expression and just stared fanatically at Manaka's face, nodding frantically.
The expression on Manaka's face became increasingly cruel. She slowly approached Angra Mainyu, then suddenly struck, piercing through Angra Mainyu's chest. She withdrew her arm and watched the smiling Angra Mainyu collapse into the black mud.
Suddenly, the black mud surged, and a huge dragon-like, beast-like head emerged from the black mud. Then one, two, until seven heads fully rose from the black mud. This was the Beast 666 recorded in the Bible.
After this monster fully appeared from the black mud, a giant beast with seven heads, ten horns, and ten crowns on its horns roared and crawled before Manaka.
Compared to Manaka's tiny frame, this giant beast was hundreds of meters long, and as it continuously absorbed the black mud into its body, it kept growing larger.
"Go! Go and destroy everything you can see!"
Manaka spun happily on the spot. Then, with a wave of her small hand, the entire greater grail shattered completely. The ley lines of Fuyuki City also began to run wild following Manaka's action, and a massive earthquake instantly shattered the Fuyuki City of this different space.
At the very moment the greater grail shattered, Beast 666, the Beast of Revelation recorded in the Bible, appeared on the summit of Mount Ryudo. It spread its wings, which blotted out the sky and extended for thousands of meters, and let out a roar toward Fuyuki City, proclaiming its arrival.
The Chaldea group at the foot of Mount Ryudo looked up at this massive Beast 666 and couldn't help but swallow hard.
Gudako, in particular, nervously clutched the 'mountain of light' and muttered to herself.
"Am I really going to fight something like this later!"
In downtown Fuyuki City, after reuniting with Touko and the others, Rin felt the trembling of the earth, and then the massive Beast 666 appeared on Mount Ryudo along with the earthquake.
Rin casually punched down a Magus who was blocking her way to Mount Ryudo, then turned around to look at the massive Beast 666, her eyes full of shock.
"Are you kidding me! How did Arthur defeat this thing!"
Gilgamesh, who was on the side, also uncharacteristically did not gloat, but looked at the distant Beast 666 with a solemn expression.
At this moment, Rin thought of something and quickly turned to Touko.
"Touko, tell Alice to stop destroying the barrier quickly. Once the barrier is destroyed, this kind of thing will run outside. At that point, I'm afraid it will be the true end of the world! Also, to deal with such a giant beast, don't get in the way. Please help save the ordinary people now!"
Touko and the others nodded and then began to act separately.
"Caren, please go and notify the Church and the Mages Association, and ask them to come and help too, please!"
Faced with Rin's request, Caren, who had been worried about Shirou and Kirei, nodded, then took Martha and changed direction, rushing toward the Church.
Having made the pre-battle arrangements, Rin glanced at Gilgamesh beside her and said.
"Gil, let's fight side by side from now on!"
As she spoke, Rin unhesitatingly took out a 'blank spirit origin' and drank it in one gulp.
Then a massive magical power storm erupted with Rin as the center. The light of the magical power obscured everything around it. When the light dissipated, a figure exceptionally familiar to Gil appeared where Rin had been.
"Ishtar!"
"ishtars bow!"
Rin casually summoned, and a huge bow floated beside her. Then a breeze blew, and Rin suddenly felt a chill. Rin looked down and instantly turned red.
"How can it be so revealing!"
Gilgamesh, hearing the tone from the 'Ishtar' before him, instantly understood that the person in front of him was still Rin. He crossed his arms and said to Rin in a playful tone.
"The attire of a god; you will get used to it later!"
"How could I ever get used to it! Forget it, let's go, ishtars bow!"
Following Rin's call, Rin held the huge bow and quickly rose into the sky, flying toward Mount Ryudo.
Gilgamesh watched the hurriedly departing Rin, shook his head, and summoned the vimana to follow closely behind her.
Arriving near Mount Ryudo and sensing that she was within range, Rin unhesitatingly took out several gems containing ancient starlight. After crushing the gems, she entered the starlight mode in her Servant form.
Then, Rin held ishtars bow, and a basketball-sized golden star appeared in her hand, which then turned into a stream of starlight and gathered on Rin's hand. Rin drew ishtars bow and shouted.
"Mountain Range Trembling! Wages of the Star!"
On the summit of Mount Ryudo, Beast 666 was roaring madly to celebrate its rebirth. Suddenly, a light descended from the sky, and a huge explosion accompanied by pain swept through the entire body of Beast 666.
Rin looked at the place that used to be Mount Ryudo but was now a giant crater, and nodded in satisfaction.
"So it was just big and scary! No wonder Arthur could defeat it. It really grew so big for nothing."
Just as Rin was intoxicated with her own success, a golden ripple appeared behind her. A chain quickly extended from it, wrapped around Rin's ankle, and threw her back to the original spot.
The moment Rin was thrown away, on the ground that Rin hadn't noticed, a huge black shadow suddenly turned into Beast 666, roaring and spitting fire toward the airspace where Rin had been.
Gilgamesh had a mocking expression on his face and maneuvered the vimana to Rin's side.
"Sure enough, it's Rin; always likes to drop the chain!"
"Ah! Who likes to drop the chain? I just didn't expect this guy to be so cunning!"
Instantly, Gilgamesh's expression changed, and while shouting at Rin, he maneuvered the vimana to start dodging rapidly to the side.
"Get out of the way!"
Rin heard Gilgamesh's voice and hurriedly looked back. A huge figure appeared before her eyes. Rin's mouth twitched, and she let out a sheepish laugh, then waved at the huge head in front of her.
"Hello there, ah~!"
Beast 666 wouldn't pay attention to Rin's cuteness; it opened its huge mouth and bit toward Rin.
In this critical moment, Rin dodged crazily. Before the huge mouth could swallow her, she finally flew out of the range of the big mouth, but she was still heavily hit by the huge head and smashed toward the ground like a meteor.
"Rin!"
Gilgamesh saw Rin being knocked away, slammed his hand hard on the armrest of the vimana's throne, and then hundreds of golden ripples appeared behind Gilgamesh.
"Mongrel! Go die for this King!"
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