This is the church's basement, near the Great Ley Line.
The true Holy Grail, constructed by the Three Great Houses, is still at Yggdmillennia's base, but at this point, he couldn't worry about that anymore. Amakusa needed power that could turn the tide of battle, and such a simple wish could be fulfilled even by a Subspecies Holy Grail. At worst, he could just launch another Holy Grail War.
He hadn't even considered whether the Holy Grail could grant him the power to defeat a Beast; he could only say he had too much confidence in the Holy Grail. He completely misunderstood how terrifying a Beast truly was. A complete Beast required multiple Grand servants to attack simultaneously to even have a chance of victory. With the Holy Grail's magical power, creating a single Grand servant was nearly impossible, let alone a Lesser Holy Grail.
However, a long time had already passed, and the Holy Grail had not yet appeared.
"Semiramis, your poison..." Amakusa looked at his servant, appearing somewhat doubtful.
"To ensure it takes effect immediately, I used the most potent poison." Semiramis was very confident in her poison. Aside from Karna, she was confident she could directly poison and kill any other servant. The remaining servants on both sides combined would easily provide the three or four servants needed to complete a Lesser Holy Grail.
"Inside the Holy Grail... there are only the souls of two Servants." Amakusa used his own methods to probe the interior of the Holy Grail and received a surprising answer. In other words, aside from Shakespeare, who was killed off at the very beginning, only one Servant had died, which was completely insufficient to make the Holy Grail manifest.
"How is that possible!" Semiramis was shocked. Even if Servants with the ability to save the dying were nearby, there was no way they could have saved everyone in such a short time. Her poison could be said to propagate by consuming magical power flow (refer to Sisigou being blinded by poison even when detecting with Spells, but the setting says it can be directly mediated by causality, isn't that too exaggerated), making it basically incurable.
"Actually, if it were up to me, there would be none at all." Jiang You led everyone directly to the core position.
The defensive functions inside the Hanging Gardens were actually quite good, but now there were simply too many people on Jiang You's side. Because of Amakusa's actions, everyone suddenly became hostile to him. After solving the poison problem by overriding it with the Duel rule, Jiang You's words now carried more weight, and he at least had the chance to get everyone to sit down and listen to his explanation.
Although it's quite absurd for something like a Beast to side with humanity, the fact that he abandoned his attack while holding an absolute advantage is indeed quite convincing.
"It's you!" Seeing almost all the Servants standing behind this Eastern Servant, Amakusa realized he was now an enemy of everyone. "You're the one manipulating others!"
To this point, Amakusa didn't even know Jiang You's name.
"Are you sick? Don't you even know what you've done yourself!" It seemed that Saint-class Servants like the Dove were all single-minded fools. Jeanne and Martha were the same, and only Saint Georgios was slightly better (though after his buff, claiming he was a dragon didn't really make him much better). They easily lived in their own worlds. Amakusa, being a half-baked version, was even more obvious. "Can you stop living in your own world? You deprived others of their intellect without even asking. Are you planning to mine human brains? You're the most vicious and evil murderer in the world! A mass murderer responsible for billions of people. Someone like you belongs in Hell, where even Satan would be asking for your autograph, you know!"
Pointing out a person from the Church's connection to Satan is probably similar to cursing someone's nine generations of ancestors in China. It's a very serious accusation, and even Amakusa couldn't hold back: "Enemy of humanity..."
But Jiang You was too lazy to listen anymore; this farce should end here. "Kiritsugu, it's time for you to save the world. This mess caused by your Einzbern family should also be resolved by you."
"..." Kiritsugu, who was stripping the clothes off the dead Darnic, was summoned out again. He was certain that Jiang You was doing this on purpose. This former Servant of his was the most dangerous troll when no major incidents were happening. Besides, everyone present had already seen him like this, and with Kiritsugu's thick skin, he didn't care anymore.
Despite Kiritsugu's cold-faced killer appearance, he was actually quite willing to do things like saving the world.
Karna, the Sun, couldn't bear to watch any longer and handed his cloak to Kiritsugu, telling him to pay a little attention to his public image.
"Irisviel, what exactly did I do wrong?" Seeing Irisviel step forward, Amakusa still asked back unwillingly. The purpose of his current actions was also to realize the Einzbern family's wish to save humanity, so why didn't even Irisviel, a fellow Einzbern, agree with him?
In the final moments of Amakusa's life, Irisviel gave him her reply. She thought for a moment and finally just shook her head: "I don't know either. After all, the me here is completely different from what I've experienced. Perhaps it's because of Kiritsugu? Now, more than the family's mission, I just want to be a wife, a mother's perspective. The Einzbern family still hasn't given up on the wish to save humanity, but this wish cannot be forced upon others. I cannot imagine a world after humanity has been solidified, where new life will not be born, and there is no way to experience happiness."
"Happiness?" Amakusa suddenly burst into laughter. He understood why this Irisviel was completely different from his Master. That Irisviel was more rational and could never say such naive words. He lived in a turbulent era during his life, and in his understanding, the weak never had any right to choose. "This world is full of evil, and humans are all plundering each other's happiness! Since you don't understand, since you've denied your own wish, Irisviel, you've become weak. Is it because of that pervert beside you?"
Kiritsugu's eye twitched. It wasn't like he wanted to see people in this appearance himself.
"He is my husband, please do not slander him." Irisviel's face flushed. Even though she used the cloak to cover her body, Kiritsugu had stood tall before everyone earlier. That look was indeed a bit perverted. Sometimes she wished Kiritsugu were like a normal person and would feel a little shy.
"In that case, let me—" Amakusa suddenly launched an attack on Kiritsugu. At the very least, he couldn't let Kiritsugu continue to poison his former Master.
Kiritsugu fired decisively, but Amakusa had already been prepared. The Black Keys blocked the bullet's trajectory, allowing him to successfully charge in front of Kiritsugu.
Without the boost from his Spell, the gap between Kiritsugu and the Servant widened again. Forced into a corner, he could only activate Time Alter. The two immediately grappled with each other. Because Amakusa had been hit by the strengthened Origin Bullet earlier, his life force was constantly draining. His suppression of Kiritsugu lasted only a few seconds before Kiritsugu fought back.
Semiramis tried to help several times but was blocked by the other Servants. She couldn't even guide the Hanging Gardens to fall. She sighed, understanding that this was Amakusa's end.
With the sound of a gunshot, the main story of Fate/Apocrypha came to a close just like that.
PS: Jiang You: On a certain year and month, Amakusa Shirou Tokisada was killed here by a naked man.
Kiritsugu: ...
Irisviel: At least say it was Kiritsugu...