Sitting alone on a throne, in a place existing outside of the universe and outside of time, located in the space of imaginary numbers, a lone man shook his head in disappointment as he witnessed the victory of Chaldea.

"How unfortunate. Once again, they have managed to resolve another Singularity. Although I'm certain that they won't be able to resolve, or less survive the next one, it is still disappointing." He muttered to himself, a serene expression on his face despite his choice of words, before he looked at the horizon.

"I suppose the reason why they managed to succeed was because of that irregular, the Goddess Rhongomyniad. Not only did she intervene with our plan, causing it to derail off its tracks, but she also couldn't defeat a single weak human despite her divine strength. That was quite disappointing of her, but it had been expected for she was originally a human herself." He said calmly as if stating facts.

But then, he blinked his dark eyes in surprise when he observed the presence of an unnatural phenomenon with his Clairvoyance.

"This is… a path to a parallel world. Since when was it present? And how did it appear in the first place..." He muttered as a multitude of questions flashed through his mind and it was only a moment after he found an answer to them.

"I see, so it all comes back to that singular deity. When the Singularity was resolved, she must have left this timeline though this path which hasn't closed yet. Interesting. In that case, allow me to make use of it. Although it leads to a completely different timeline, it's still connected to this one, so any interference to it would affect our time too."

As he brought up his hand in front of him, a Holy Grail appeared out of thin air before it floated down, slowly landing on his palm.

"I'll consider this your apology for your failure, Goddess Rhongomyniad... as I will plunge your era into chaos."

In Chaldea's briefing room, Fujimaru Ritsuka was standing besides her first Servant and also best friend, Mash Kyrielight, as they both stood in front Romani Archaman, having previously rushed to the room after hearing the emergency alarm being sounded across the arctic base.

"I'm sorry to ask you two to come this early in the morning, Fujimaru, Mash. It hasn't been long since what happened in the Sixth Singularity, but we detected another one."

"It's no problem, Doctor. We had enough time to rest properly since our time in Camelot, so we're completely fine. Isn't that right, Senpai?"

"What she said. So, where will we be going today?"

"Well, according to the coordinates we obtained, it seems that the singularity that appeared is in England... or should I say the British Island since, unlike the fourth singularity where you ended up in modern London, it will be in the middle of the fifth century, to be exact, in year 444."

Hearing this, Mash closed her eyes as she placed her hand over her chest for a few moments, making Ritsuka wonder if there was something wrong with her. But before she could ask, Mash suddenly opened her eyes and looked at Romani.

"In the year 444... Doctor, does that mean the era we're heading towards is..."

"It looks like you figured it out. According to our experts on the matter, it should be around the time that Arthur... or should I say, Artoria Pendragon, pull out the sword in the stone, Caliburn, and start her campaign across the isle before becoming the country's king a decade later." He said, much to Mash and Ritsuka's surprise as they never thought that their next destination would be during an eventment that was considered mythic in their current age.

But then, Ritsuka blinked when she registered a certain detail about Romani's words.

"Wait, the experts?"

"Hey, Master, Mash, we came to help!"

Hearing a familiar voice call out for her from behind her, she turned to see Mordred walking in her direction with a big grin on her face, and following right behind her were the other knights of the Round Table.

"Ah, sir Mordred! Everyone!" Mash exclaimed, happy to see them, while Ritsuka nodded to herself, a smile on her face as her inner question was answered.

"Of course, there is no one who would know better than the ones who lived during that time."

"We figured out that since it would be during our era that the singularity appeared, it would be better to accompany you two." Artoria said before she turned her eyes to the other members who all sported serious expressions on their faces, causing him to let out a chuckle at the sight.

"And they seemed pretty determined to redeem themselves for the troubles their alternate selves caused you during the last singularity... Of course, that includes me as well. So, it would be great if you allowed them to be selfish and let us come with you this time."

"Of course. I know full well how reliable you all are, so your help is really appreciated." Ritsuka said, much to the knights' joy as a kind smile appeared on all of their faces.

"I'm grateful for this, Master. I swear to you at this moment, our swords are yours to wield. Feel free to command us as you wish." Artoria said as she bowed in front of Ritsuka, akin to a knight in front of a king, with the other knights doing the same behind her, much to the young woman's embarrassment.

"Please, you don't have to do that…"

"I suppose everything is settled then. In that case, get ready for Rayshifting now." Romani said, earning the attention of all the people present in the room as they all nodded at him before they went to their respective coffins.

"The target coordinates are Britain, year 444. Just like with the other Singularities, who knows what kind of changes happened in that era, so watch out., especially you, Fujimaru."

"Understood." Ritsuka replied to Romani's words, hearing them from inside her coffin, before she took a deep breath as she felt a bit nervous, trying to hold back her shivers.

Although she had faced many trials ever since she joined Chaldea, she still felt fear and nervousness. But a huge part of it was mitigated as she understood she wasn't alone in this ordeal.

Mash and Fou who were always present by her side on the field. Romani. Da Vinci, and the other Chaldea's staff who always supported her from behind, despite time and space separating them. And this time, she will be accompanied by the members of the Round Table whom she personally knew how strong they were, having either fought with or against them.

She trusted them with her whole being, so instead of being afraid, she would just smile and assure them that she's fine, that nothing was wrong. That was the least she could do as their Master… and the last Master of Chaldea.

[Unsummon Program, start. Spiritron Conversion, start. Rayshaft starting in 3, 2, 1… All procedures cleared. Grand Order commencing operation.]

And as she clenched her fists, her determination renewed, Ritsuka felt her consciousness fade away as her body was converted into spiritrons.

"Please be careful, Fujimaru. I can't help but feel that something will be different this time." Romani muttered as he looked over her coffin before he widened his eyes in surprise when he heard several coffins open on their own.

He quickly turned to see that, except for Ritsuka's coffin, all the others were opened with Mash and the other Servants being inside them, all being confused as they could only stare at each other with wide eyes.

"Why the fuck did we not rayshift?!"

Mordred screamed the thought that crossed in the minds of all in Chaldea.