Kwagwagwagwagwa!!!
"Ahahaha! What? What? What's with that look~? Hey hey, want me to tell you what's going on~? Hellooooo~? Saber-san!"
"Khh, ugh..."
An overwhelming difference in power. Saber fell before the dominating force.
Illya, a Servant of Holy Grail Reincarnation who had consumed five Holy Grails. Her true worth doesn't show in her usual Magical Girl form, but when transforming using Class Cards, she explosively draws out that Grail's power and properly utilizes Ruby, the Mystic Code of the Second Magic.
Displaying power output on a level akin to a Jewel Sword, perfectly drawing out the power of Oberon=Vortigern while showing destructive power beyond even that.
Saber was also among the early members, and Illya, who was summoned during the early Part 1 days, knows Saber's combat methods very well. Because of that, this Saber with lower parameters than her Chaldea counterpart was no match for Illya.
Illya's experience was superior to Saber, who had fought on battlefields long ago. Despite being from the end of the Age of Gods wielding Noble Phantasms, Illya is an elite who fought through Incineration of Humanity and Human Order Foundation, which even gods deemed skeptical and impossible. She was rather an expert who had resolved countless calamities like the Vortigern Saber experienced.
For Illya, who had fought in the Age of Gods, in other worlds, and even in space, Saber was nothing more than a novice Servant with less experience than herself. One of the Servants who fought against Evils of Humanity, against gods, and even in the decisive battle against the worst calamity, O.R.T.
Her abundant experience and Ruby's support were a natural, unavoidable result for Saber, who also lacked Master capability. Even if another Servant had come instead of her, the result would have been the same.
The difference in worldviews. It was a result that could be explained as such. Saber staggers trying to get up, but...
"Ee~yatt~!"
Illya summons a giant flying beetle, kicks the beetle that curled its body into a ball, and Saber is hit by the giant flying beetle and falls backward. As if hit by a truck running at top speed.
As she falls, Saber is convinced her chance of winning is 0%. Unless she receives healing like Irisviel from the Fourth War, Shirou is a magic user who can't even perform simple healing magecraft. For Saber, having to protect a Master who can't even run away, let alone fight, was no different from an ultra-high difficulty dungeon.
"Falling at this level...?"
Illya erases her smile as if bored, slowly raising the sharp hand of the giant black cockroach like a scythe.
And then, Shirou standing before the fallen Saber with a pipe. Reinforcing the pipe with magecraft, he blocks Illya's path.
"Are you serious, big brother? You're not at a level to face me, you know?"
"Even so, I can't let Saber die."
"Shirou..."
Saber tries to tell him to run, but Shirou doesn't move. As Illya swings the scythe as if finding it ridiculous, the pipe is easily sliced. Shirou flinches but soon regains his posture.
"... I see. Is Saber that precious to you? Or... are you doing this because of that personality of yours?"
"... Both."
"I see... Stubborn. Boring... That way, you might end up with the worst conclusion, you know, big brother. I hope you give up on that dream."
In any world, Emiya Shirou is no different from walking the path of a guardian unless he gives up his ideals. That is fate, and he must suffer for an eternity. Or, there also exists the worst conclusion of losing everything like Emiya Alter.
Knowing that well, Illya gives her final advice and leaves the spot along with spiritualization.
"... Saber!"
Shirou drops the pipe and checks Saber's condition. Conscious but her body is a wreck. Shirou couldn't provide treatment, so he first headed to Rin's house, which was at least a friendly relationship.
Fortunately, Rin judged that there were still many hidden secrets in the Holy Grail War, so she healed Saber, needing her help.
Ultimately, that day was one filled only with losses for Shirou's side.
The next day, Shirou went to school as usual.
Because of last night's events, Shirou lacked energy. He tried to talk with Rin at the academy, but due to the previous Muramasa incident, Rin maintained an attitude of distrust unless absolutely necessary; last night she met him because Saber was there, but today he was alone, so she was wary and wouldn't talk.
Truly, the mastermind's disruption had succeeded perfectly.
Shinji tried to lighten the mood by chatting lightly with his friend Issei, but he was still too hung up on the Holy Grail War.
Lunchtime comes, and as he thinks about eating lunch while getting some air... Shirou sees something brush past at the corner of the stairs at the end of the hallway. Just in case, he secretly goes there...
"Smooch... haa, sensei..."
"You got too excited, Rin. Can't you wait until after school?"
'... Tohsaka?'
There were the student teacher Dumpty and Rin. The two were sharing an affectionate kiss, and Dumpty was lifting Rin's skirt and grabbing her butt over her underwear.
Seeing that, Shirou unconsciously gulps and watches. Rin's hidden secret, or was she keeping her distance because she had a man? He even started to think that.
Soon, Dumpty's actions become bolder, removing her skirt and top. Rin accepts it and shows herself undressing. Shirou ends up seeing Rin in her underwear...
"...."
Beyond this is personal privacy, and Shirou, being somewhat flexible, stops peeking and quietly goes up the stairs... but watching that scene triggered a teenage boy's physiological reaction, and covering that area with his lunch box, he quickly just goes into the restroom. Having no choice, Shirou ends up eating in the restroom for the first time in his life...
"Haa..."
With the Rin incident and everything, lately Shirou's head just keeps getting more complicated.
"What's up~ Shirou. Rubbing your head like that. Did you get hair loss or something...?"
"What is it, Fuji-nee..."
"Kiritsugu-san didn't have it, but Shirou's adopted, so who knows?"
"Is that something to say..."
Walking down the hallway, he runs into Taiga, and Shirou feels somewhat relieved meeting the usual lighthearted Taiga. Still, they've known each other like family for a long time. It was somewhat comforting.
"... You have worries, right?"
"That's..."
"That whatsit... Saber-chan came this time, an acquaintance of Kiritsugu-san, right? So, how about having a party together this time?"
"Party...?"
"A commemorative party, you see~ In that sense, put in some effort!"
"So cooking is my job again..."
"Hehe~ Oh, and Sakura said she's a bit busy today. I proposed it to Sakura-chan too, but sadly it didn't work out. Well~ The point is to cheer Shirou up!"
"... Got it."
Shirou accepts Taiga's proposal anyway and promises to have a party at home in the evening. Saber also pushed herself quite hard, so he judged it important to take a breather and rest.
And so that evening...
"What's this, alcohol...?"
"Ahahaha~! Saber-chan is an adult, right? And Shirou will be an adult soon too~ Just drink drink! It's okay to drink if an adult gives it!"
"... Well, where I lived, Shirou was old enough to drink."
"Oh? See!"
"Even Saber... I had it once before from Kiritsugu, but..."
Saber also had considerable stress built up, so she wanted to drink for the first time in a while and accepts. Shirou also has no choice but to join in for a few drinks...
"Ahahaha~!"
"So that's what I'm saying... Shirou, you're too reckless...! Shirou is weak, so just stay in the back~!"
"Saber... Still, girls shouldn't fight."
"That's discrimination..."
Saber was completely drunk and staggering, and Taiga still showed her lively alcoholic side. Shirou also matched a few drinks and felt a bit dizzy, talking nonsense.
'Ugh... I really shouldn't have drunk. I shouldn't get drunk. I'll have some tea and clear my head...'
"This time it's warmed sake~! Shirou, have one more~!"
"Let's stop drinking now, Fuji-nee... Ah, things seem to be blurry."
Shirou complains of dizziness to Taiga, saying something seems attached to her, even her clothes look different...
Slither~
"I'm out, Shirou~! What's for dinner tod──huh?"
"────What is this... Mmph!?"
Slither...!
"Huh? Didn't you hear some sound just now?"
"Aah, there was nothiiing~ So have another drink~!"
"Is that so... No, I'll bring some tea..."
With Taiga being ejected by something beyond the door... Shirou tries to sober up by giving Jaguar Warrior tea. And beside him, Saber, drunk and asleep.
"Potato... potatoes... nooo..."
Seems to be having a nightmare. Shirou also complains of fatigue due to the alcohol...
"If you're tired, sleep alreaady~ I'll leave the dishes to tomorrow's you!"
"Uhn... Sorry..."
Due to the alcohol, supported by Jaguar, Shirou falls asleep as soon as he lies down on the futon in his room. And...
That night, it's said Shirou had a wet dream from Rider's surprise attack in his dream. For reference, the partner was said to be Rider in Rin's form.