Thanks for the invitation. I'm in Type-Moon, inheriting the legacy of Zi-O.

However, seeing Mashu's satisfied expression, Nencho and Ryotaro both breathed a sigh of relief.

The scene on the second day was not much different from the first day, but there were also some changes.

When Nianzhuo went to the cafeteria this time, he happened to run into Ritsuka and Mashu. After greeting them warmly, he noticed that some of the staff who should have all run away had actually stayed behind, eating while staring at Momotaros and the others with scrutinizing eyes.

Although the looks weren't exactly friendly or even benign, the situation was much better than the immediate escape on the first day.

...Although the roar that came from Momotaros's chair being pulled away and slammed to the ground almost brought everything to a standstill.

However, overall... people are gradually choosing to get to know these otherworldly gods.

After all, we are all magicians. Although we haven't had any formal training, our mental resilience is much stronger than that of ordinary people.

The next day, while strolling around Chaldea, some staff members would carefully walk past Nencho after seeing him take the lead, instead of choosing to go around him directly—at least, they were already happy to see Nencho change.

On the third day, the fourth day... every day they kept improving, starting from the first conversation, the first invitation for Nianzhuo to take them to the test... gradually everyone finally realized that these otherworldly gods and Ryotaro were not bad people.

...Although Ryotaro's good looks are quite popular among the female employees.

However, at least they are integrating into life here, and that's enough.

"Then." Morning still arrived, and Nianzhuo looked at the day marked with a red cross on the calendar—today.

"Today is the day we're going to the Singularity."

Upon arriving at the main control room, Nianzhuo pushed open the door and found everyone already waiting there.

Romani smiled and waved at him, Leonardo da Vinci saw him turn his head away in a huff, and Director Mary quietly came to his side and straightened his collar.

And finally... there's something Nian Zhuo never expected: Ryotaro and Momotaros.

"Yo." Seeing Nian Zhuo arrive, Momotaros greeted him familiarly, and pointed to Mary, "Nian Zhuo, this girl named Mary says she has a mission to find us, what do you think?"

“…?” Nian Zhuo was a little confused, but when he saw the look in Ryotaro’s eyes standing to the side, he instantly understood.

"I see." A proud smile appeared on Nian Zhuo's face as he closed his eyes. "So that's what you were planning."

Ryotaro, on the other hand, had the same reaction as Nenjo.

As for why?

The screen next to it displayed "Observations and Front-End Summary of the Fourth Singularity".

So, we really have to have a meeting!

Shortly after Nenjo arrived, Mashu and Ritsuka also arrived late.

"Um... I'm so sorry we're late!" Mashu bowed to everyone present, pulling the drowsy Ritsuka along, while also noticing Ryotaro and Momotaros on the side.

After some hesitation, Mashu finally waved to them.

"Good morning, Mr. Ryotaro... and everyone else."

"Yeah... um... good morning, everyone..." came Ritsuka, still half asleep.

“…Well, good morning, Ms. Mashu.” Ryotaro was taken aback at first, but finally waved to her with a smile.

However, this smile no longer seemed somewhat polite, but truly carried a friendly meaning.

"Hey, hey, it's me too! Mashu!" The blue monster suddenly darted in front of Mashu and Ritsuka, speaking in a completely different tone than usual, "Hey, wanna grab a coffee later?"

Completely ignoring the fact that Mashu and Ritsuka turned deathly pale with fright...

"Well, isn't this good too?" Nian Zhuo looked at Mash and Ritsuka, who had finally accepted them, and winked at Mary to the side. "You agree, right? The warden who said the imprisonment results were not implemented at all?"

"Ha." The silver-haired girl responded with a soft snort and turned her head away. "I was just testing whether they were really as harmless as you said, and now I have my own conclusion."

"Conclusion?" Nian Zhuo couldn't see the girl's expression, so he had no way of guessing.

However, Romani and Leonardo da Vinci exchanged a glance and then sighed.

"Ahem." Then, the girl walked to the screen and cleared her throat.

The room fell silent instantly, and everyone's eyes were on Mary.

"..." Her gaze swept over everyone's faces, finally settling on Nianzhuo. Mary tapped the screen beside her. "Good morning, everyone. It seems everyone is here now, so let's get started."

Then, with a swipe of the finger, the interface on the screen is switched.

"Well, first of all, let me tell you the results of the intelligence analysis we obtained last time."

"You mean..." Memories of the past gradually surfaced as Mary spoke, and Mashu looked at the densely packed reports on the screen with some surprise. "Observations on the era of King Solomon? The king who was said to be able to use the summoning spell known as the Seventy-Two Demon Gods."

“That’s right.” Mary nodded with admiration in her eyes. “In conclusion, no anomalies occurred during King Solomon’s time. No singularities occurred around the 10th century BC, which means…” She nodded her forehead with some difficulty and sighed. “Da Vinci, you should tell the story.” Mary walked to the side.

"Alright~ Then let me, the all-powerful genius Leonardo da Vinci, explain it to everyone~" Then, Leonardo da Vinci walked to the screen. "First of all, although it is regrettable, neither Director Mary nor Romani's observations were wrong. Those guys who call themselves the Seventy-Two Demon Gods have any relationship with King Solomon."

"Good morning, Da Vinci-sama~" Ritsuka waved, and after receiving a smiling nod in response, she was also a little puzzled. "So, why is that, Da Vinci-sama?"

“Actually, this is quite simple to explain.” Da Vinci nodded matter-of-factly, his staff glowing. “It’s nothing serious, it’s like… right, the kind of alibi you often read in mystery novels, right?”

“Yes.” The doctor’s expression was somewhat serious. “If Solomon commanded the seventy-two demons, we would definitely be able to observe clues. We would observe traces of sending familiars into the future from the 10th century BC.” Then, his face turned into a smile, as if he had relaxed about something.

“However, there was nothing unusual about the time of King Solomon. In other words, his era was still ‘correct human history.’” As if delighted by this conclusion, Romani’s smile brightened even more.

“So—” he deliberately drew out the word, looking at Leonardo da Vinci, who nodded knowingly.

“Lev Lenore and those self-proclaimed demons came from a completely different ‘era’,” Leonardo da Vinci continued, but with a hint of hesitation. “Therefore, King Solomon has nothing to do with them, however—” She gave Mary a look.

“…If King Solomon was a servant controlled by someone, then that’s a different story.” Mary took the final blow, turning to look at Leonardo da Vinci, who seemed to understand. “Right?”

“That’s right, that’s right.” Da Vinci nodded proudly, pointing to the bright red Command Seal in Mary’s hand. “Just like Ritsuka and Mary, we can summon King Solomon to our own time as a familiar. That way, even the ‘Seventy-Two Demon Gods’ can be brought under our command.”

"However," Romani said somewhat guiltily, rubbing his neck repeatedly, "this speculation is based on the premise that the familiars called the Seventy-Two Pillar Demons truly exist." Gradually, his emerald green eyes looked at Mary, Da Vinci, Ritsuka, Mash, and Nencho, speaking with great certainty.

"However, I don't think King Solomon would do something like aiding and abetting evil."

“Dr. Roman, although we really want to believe you—” Ritsuka’s gaze shifted to the three bright red Command Seals in her hand, and she said with some difficulty, “Even if he wouldn’t have done such a thing in life… being summoned as a Servant after death, his feelings towards his Master…”

Before she could finish speaking, Mashu stepped forward and adjusted her glasses.

"Excuse my bluntness, Doctor," Mash's tone was equally firm, "Servants are beings who obey their Masters. If the Master gives an order, even King Solomon would have no choice but to obey, right?"

“King Solomon wouldn’t be summoned by such a bad person,” Romani shook his head indignantly. “Besides, this isn’t the Holy Grail War in Fuyuki City. Chaldea’s summoning system can only be established after the Master and the Servant reach a consensus.”

“I’m telling you…” Nian Zhuo’s forehead dripped a few drops of sweat, “We tried so many methods before, but the summoning circle didn’t react at all. It’s not that the relics are no good… it’s that I didn’t tell them at all!”

Nian Zhuo scratched his head in frustration, because ever since returning from the Second Singularity, he had been searching for a way to summon either Nero or Jeanne d'Arc Alter, or even just one of them.

But no matter how hard he tried, all the magic he poured in was eventually converted into Chaldea's electricity. In fact, Da Vinci was a little puzzled and asked Nian Zhuo why Chaldea's electricity had suddenly increased so much, which earned him a smile from Nian Zhuo that was more like a grimace.

The relic is in Nianzhuo's hands, but neither Nero nor Jeanne Alter know where Nianzhuo is now. Faced with the summons from an unknown source, Nianzhuo has been doing nothing but futile efforts.

“Well, that’s true,” Da Vinci nodded. “I only came to Chaldea after I agreed. The director at the time was an excellent magician… Ah, I don’t mean Mary wasn’t excellent, I was just stating an experience.” Da Vinci quickly waved his hand as he saw Mary’s suddenly withdrawn expression.

“I believe he is trustworthy, which is why I entered into the contract.” Da Vinci tapped Mash’s forehead and looked at Nencho, whose eyes were inexplicably moist. “I’ve said it before, haven’t I? In Chaldea, I am the third memorable example of success.”

"So, Leonardo da Vinci is the third Heroic Spirit to arrive here? So, Mr. Nian Zhuo is number four?" Ritsuka looked at Leonardo da Vinci with some disbelief, then shifted her gaze to Nian Zhuo, looking back and forth between the two of them. "Then, what about number one?"

"Number Two is standing right in front of you, it's Mashu, you know?" Da Vinci pointed at Mashu, his eyes shining with encouragement. "As for Number One... it's still unknown at this stage. Numbers One and Two are considered classified information, and probably only the former director would know the details, right?"

“Senior…and Mr. Nianzhuo…” Mashu turned her head and looked at the two who were also smiling and watching her. “The Heroic Spirit who saved me and Senior is number two…but I don’t know his true name or abilities.” As she spoke, Mashu’s eyes dimmed again.

However, a familiar feeling came from above her head, and Nianzhuo gently placed his hand on Mashu's head.

"Don't worry, Mashu." Nianzhuo gave her a thumbs up, his eyes also filled with encouragement. "One day, you'll understand, so until then, keep training yourself!"

“…Yes! I will try my best!” Mary smiled and nodded solemnly.

"So, Mary." Then, Nianzhuo quietly moved closer to Mary and whispered, "What else do you know about Heroic Spirits Number One and Number Two?"

They were too close... Mary could even feel Nian Zhuo's hot breath. Her ears were already red, and she quickly moved to the side to avoid losing her composure.

“I don’t know much about these things either.” Mary watched Mash, who was secretly encouraging herself, and turned to look at Nian Zhuo. “However, I do know some information about the second Heroic Spirit, but I can’t tell you—at least not now.”

"Why?" Nianzhuo asked, puzzled, but Mary's orange eyes held a seriousness that was enough to frighten anyone.

“Because if I told you now, given Mashu’s personality, she would definitely force it in a dangerous situation.” She clenched her fists and bit her lip. “In that case, her body would break down from the excessive burden.”

"...Is it that serious?" Nian Zhuo couldn't help but gasp. "...But thank you anyway, Mary. So, what else do you know about Number One?"

Mary blushed and tossed her silver hair.

“I’m sorry, I don’t know who Number One is either.” Stroking the screen in front of her, Mary lowered her head. “After all, the former director, who was my father, always kept Number One’s information very well hidden.”

She raised her head, her eyes gleaming with anger.

"...Looking back now, the death of the former director...that is, my father, might not have been an accident. It was murder." Frowning, Mary bit her thumb. "It's very likely that Rafe, who was unhappy with the successful summoning of the first—no, the Heroic Spirit Summoning System, killed the former director." The thought that the professor she once admired might be the murderer of her father caused Mary an indescribable pain.

“Mommy, but I think the first summoning should be considered a failure, right?” Seeing Mary’s increasingly somber expression, Nian Zhuo quickly changed the subject, patting Mary’s back as he did so. “After all, the second Heroic Spirit inside Mash wasn’t completely successful either. Chaldea’s Heroic Spirit summoning should only be considered completely successful starting with the third one, Da Vinci.”

“Yes, yes, that’s right.” Da Vinci puffed out her ample chest and nodded in response to Nian Zhuo’s praise. “Besides, even the existence of Number One is questionable. Perhaps the summoning of Number One was just a coincidence? After all, fate… the foundation of the Heroic Spirit Summoning System was finally verified with the assistance of Number Two—”

Then, Leonardo da Vinci's words were interrupted by Marie and Romani speaking at the same time.

"Ahem!" The two men placed their hands on Leonardo's back and pushed him towards the door. "Leonardo, the spirit transfer is about to begin. Can you go and prepare?"

"Oops, oh dear, I spoke too quickly~" Pushed along towards the control room, Da Vinci waved to Nian Zhuo and the others, "I'll take my leave now~"

As Leonardo da Vinci disappeared from sight, both Romani and Marie sighed.

"Ahem... Alright, now there are only four singularities left..." Mary sorted out her thoughts and looked at Nian Zhuo and the others in front of her. "The mastermind is likely hiding in one of these eras. After all, there are no anomalies in the other eras. As long as we eliminate the singularities one by one, we will definitely encounter the mastermind."

Mary pressed the screen behind her and placed her hands on the table.

“Then let me explain this mission in detail.” He enlarged a report and placed it in front of everyone. “The Fourth Singularity is in the nineteenth century—arguably the closest of the seven singularities to the modern era. But this is not surprising, because there are reasons for it.”

"That is—the development and prosperity of civilization." Even Mary from the magic side spoke with excitement, "Human history has made a tremendous leap in this era."

"—That is, the Industrial Revolution!" Mary, from the magic side, genuinely admired the scientific side's abilities. "That was truly a turning point in human history. From the perspective of consumer civilization, it was at this time that human history laid the foundation for modernity. And the destination of your spirit particle transfer is the glamorous British Empire. This time, the target is unusually confirmed in the capital, London. Hmm, it's a bit different from the previous cases where the target was spread over a wider area. Maybe this time you won't have to work your legs off? After all, there are carriages and railways."

"But the premise is that it can be used normally..." Mary sighed, then changed back to her original tone, "Because there was an anomaly this time too." She opened her eyes, her orange eyes fixed on Nencho Mashu and Ritsuka.

"Soon, 19th-century London, as a singularity, will be burned down and completely destroyed. Your task is to prevent this from happening. I hope you can find the Holy Grail and repair the Fourth Singularity."

"Understood." Nian Zhuo nodded, flexing his wrists. "This operation will be within the city, right?"

“Yes, that’s right.” Mary nodded, then waved her hand as if noticing the somewhat somber atmosphere. “Mom, London is actually quite nice, after all, the modern clock tower is located there, and it’s the City of Fog and all that. If possible, I’d like to go and see it.” Mary said casually, looking at Mashu.

"If I were to meet Sherlock Holmes, I might even get his autograph or something."

“Director,” Mashu said seriously, shaking her head, “we’re not going on a vacation.”

"Ah...I see." Mary scratched her cheek in silence.

"Cough cough... um." After coughing for what felt like the umpteenth time, Mary looked at the other demons who were already getting a little dizzy from listening, and at Ryotaro who had been silent from the beginning until now. "As for you guys..."