The Holy Grail War Didn't Follow the Geneva Conventions Anyway

Rin's Tracking Magecraft didn't connect to the Older Sister servant's master, but instead connected to a book that was clearly Magecraft Props. Based on this premise, we can deduce two things: either Rin's Magecraft went wrong, or the book is the master.

The first answer can obviously be ruled out; Rin, with her Mystic Eyes of Replication, is absolutely perfect in Magecraft. But to say that a book can be a Master seems a bit incomprehensible.

Even when pressed for answers, the Older Sister servant remained uncooperative. The only explanation everyone could deduce was that her master used this book as a vessel to distract Rin and escape in order to get rid of her Command Seals. However, this was clearly a losing proposition. Not only did she lose her Command Seals, but she also failed to save the servant. It would have been better to simply use the Command Seals to forcibly transfer the servant or enhance her abilities to force her into battle. Either way, it would have been a better choice than fleeing in such a sorry state.

This leads to two possible conclusions: first, the master is an idiot whose intelligence and judgment are far below that of a normal person; second, some situation occurred that forced the Magecraft to do this.

"In short, let's make the safest preparations—assuming that the master at that time had to abandon Command Seals and Servants, which means there was another force besides us at the school at that time."

"That's the only way to think about it, Rin." Jizi nodded in agreement with Rin's assessment, then pointed to the Older Sister servant and asked, "So, what should we do with her?"

"..." Rin hesitated for a moment, looking at the Magecraft Book in her hand. Judging from the magical energy, the Command Seals engraved on it were undoubtedly genuine. She could use these Command Seals to command Servants to answer her questions or fight for her side. However, there was only one Command Seals in the book; where were the other two? If she used this one, would the Servant be able to return to her true Master?

"How about we lock them up first? I can set up a Spirit-Binding Magic Circle in my Workshop," Jizi suggested as a compromise. "Saber is always at home, so we don't need to worry about anything unexpected. Since we have the Servant and a Command Seals, they're the ones who'll be anxious, so let's just wait and see."

"That makes sense." Rin couldn't think of any other solution, so she nodded.

Afterwards, the group returned to the Emiya Residence, locked the Older Sister servant in Jizi's Workshop, repeatedly reinforced the confinement Magic Circle, and asked Saber to keep a close eye on her to ensure she wouldn't escape. Then, Rin, Jizi, and Shirou discussed the matter again and decided to maintain their alliance for the next two weeks, until only Saber and Archer remained.

"That's settled then. Our immediate goals are to find the Master at the school and resolve the Caster issue at Ryuudou Temple. Everyone, get some rest and conserve your energy; we'll have plenty to do next."

Because of their alliance, and considering safety and convenience, Jizi invited Rin to stay at her house temporarily. Rin readily agreed and quickly settled in, not treating herself as a guest at all.

"That's true—I'll go prepare the guest rooms then."

"That's troublesome."

After tidying up the tables and chairs, Shirou practiced his Reinforcement Magecraft a bit, and then went to bed early so he would be energetic for tomorrow.

In the dead of night, when all the lights in the Emiya Residence were off, Jizi, who was fast asleep in her bed, suddenly sat up and opened her blood-red eyes.

"Although he appeared completely unconcerned about his situation, Rider was extremely anxious when he was captured and imprisoned."

"What she was worried about was certainly not her nominally ignorant and incompetent master, but the person she truly wanted to protect."

"That red-clad female Magecraft and her assistant don't seem like simple characters. Any information I reveal could expose their identities—that's absolutely unacceptable. Even if it costs me my life, I must protect them!"

"So it doesn't matter if you're surrounded and beaten by Skeleton Familiar, shot through the calf with an arrow, have your magic suppressed, locked in a dark room, or go without food."

"Isn't it a touching story of master and servant?"

Rider, whose real name is Medusa, stared through her blindfold at the servant who had suddenly appeared in the room and started talking to herself, a hint of surprise on her face.

After a pause of about half a minute, she finally spoke.

"... Who are you?"

Rider's voice has a unique charm; it's deep yet not dry, possessing an intellectual and mature quality that perfectly complements her figure and appearance.

Can't you tell?

The newcomer made no attempt to conceal her presence; the dense concentration of magic was beyond the capabilities of a human body. Considering her previous ability to appear suddenly without any warning, there was only one answer.

"Assassin, what do you want?"

"I want to... cough cough cough, I mean, my goal in coming here this time is definitely because of you."

"Speak." Ignoring Assassin's deliberately teasing joke, Rider's response was concise (Servants are naturally fluent in languages, so they can use some Chinese puns~).

"First of all, I want to confirm one thing," Assassin paced beside Rider, "Just how far are you willing to go to protect Sakura Matou?"

"..."

"Or rather, what are you willing to do to prevent me from revealing your true master identity?"

"..."

"I'm an assassin, with unparalleled advantages in intelligence gathering—so selling information for profit is only natural, isn't it? If you can't offer a good price, I can always find other clients—speaking of which, the red-clad female Magecraft is quite good; she seems shrewd and reasonable. Or that red-haired guy—Sakura and he have a very good relationship, right? Even if he knows Sakura is a Master, he won't harm him. I can use that to blackmail him into doing things for me."

"I'm just a prisoner now," Rider finally spoke again after listening to Assassin's pretentious act for so long. "Even if I hadn't been captured, I'd still be just a weak Servant. What do you want me to do?"

What are you willing to do?

"..." Rider lowered her head, seemingly lost in thought. When she looked up, although Assassin couldn't see her eyes, he sensed a gaze filled with conviction.

"Everything."

"I'll do anything to protect Sakura."

"Hehehe," Assassin's laughter sounded dangerous, but Rider had made up his mind. "I'm really touched, honestly."

What do you want to do?

"Didn't I tell you before? I'll fuck you!"

A pair of icy hands touched Rider's body, moving up her waist, lingering noticeably longer at her chest, before tearing her upper garment to shreds with a "whoosh".

"Theoretically, prisoners of war should be treated well, especially female prisoners—but I haven't signed the Geneva Convention, so sorry~"

The hands caressed Rider's impressive [body parts that cannot be described in detail] for a while, then, forming a knife with their fingers, they plunged it into the location of her Spirit Core —her heart. Rider [body parts that cannot be described in detail] showed no wound; Assassin's hand seemed to have plunged into water.

"Besides, there was no Geneva Convention in your time, so you wouldn't understand even if I explained it to you—by the way, how come you still haven't reached it after all this time? Your breasts certainly have depth and height, as expected of Sakura's servant, in terms of attributes, the compatibility is indeed high."

------------------ps-----------------

P. S. 1. I've been using WCS these past few days. Although I don't update it even when WCS isn't available, I'll still use it now that I have a reason.

P. S. 2. I suddenly discovered another unfinished project, "A Certain Scum Top's Itsuka Shiori," has reached 100,000 words, seemingly reaching a point where it can be "killed." So, I'll shamelessly recommend it to myself! You can probably guess the content from the title; the style is similar (after all, it's by the same author). Adhering to the principle of thoroughly dismantling the original work, the nonsensical, fabricated, and inconsistent updates, along with the typos, are all the same formula and flavor as this book. I hope everyone will take the time to check it out and add it to their favorites! On mobile, you can find it in "Other Works by the Author," and on PC, just click on my author name or search for it directly in the search bar.