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

It swung down heavily on the giant mechanical puppet.

A golden light instantly cleaved the mechanical puppet in two, and the power unit that had been continuously spewing steam completely stopped operating.

“This is called, Powerful Slash—” Kintaros’s voice slowly emerged as the axe blade slammed into the ground.

"You should have said so sooner..." Nian Zhuo was exasperated and scratched his cheek.

Meanwhile, inside the Time Train.

"That bastard, what's with the show-off stuff?!" Momotaros slammed his hand on the chair and stood up defiantly.

An unexpected attack; a changed version of myself.

Looking at the scattered mechanical parts, Mashu and Ritsuka were still somewhat shaken.

"...Confirmed that the enemy machine has stopped operating." After taking a few deep breaths, Mashu finally turned on the communication device. "What a powerful enemy... But what is this? A puppet? A mechanical doll?" She crouched down to examine the huge machine that had stopped operating.

"It's...it's a robot!" After escaping danger, Ritsuka even looked at the giant mechanical monster lying on the ground with starry eyes, "It looks...kind of cool."

“It looks…like…” Mashu glanced at the monster’s massive mechanical body and nodded. “Come to think of it, it does look quite like a robot…”

"The inability to sense magical reactions is really a headache." Mary clicked her tongue in frustration as she watched the red dot on the screen disappear. "Mash, do you have any more hostile objects over there? If you can see the exposed internal structure, I hope you can send me the images. I'll have Da Vinci and Romani analyze them when they have time."

“I understand.” Mashu nodded and took off the communication device. “I will send the image information to you after taking the photo.”

The clicking sound rang out, and Nian Zhuo hadn't expected that this little thing could actually be used for taking pictures.

“Hmm…” However, during the filming, Mashu suddenly stopped as if she had noticed something. “Something’s strange…” She stared at the scattered parts and the monster’s enormous body.

"...Although this monster was cut in half by Ryotaro and Mr. Nencho..." She extended her index finger and touched the monster's outer armor, "but part of the damaged armor is corroded. Most of it is fine...but the part that looks like sheet metal...is corroded..."

"Hmm...? Corrosion...?" Marie raised an eyebrow. "Did you use acid attacks in the battle just now? No, no, do we have any Servants with that kind of attack method?"

“Hmm… I think I guessed it.” Mashu cleared her throat. “In London during the Industrial Revolution, the large amounts of smoke emitted by steam engines became a social problem. The sulfur dioxide in the smoke would stagnate and condense into sulfuric acid mist when it encountered low-temperature fog… Hmm.” Suddenly, Mashu’s eyes narrowed as she stared at the machine on the ground.

"Hmm... what's wrong, Mashu?" Mary asked worriedly, looking at Mashu whose heart was suddenly racing.

“No, wait a minute.” Mashu pressed her hand to her forehead, as if she had grasped something crucial. “I remember… yes, [it was like inhaling sulfuric acid]…? In a previous record, there was something like that…”

Finally, she looked around, and after confirming the surrounding buildings, she nodded heavily.

“Yes. That’s right. Because this era is—” However, Mashu had just finished thinking and hadn’t recovered yet.

—A dark shadow suddenly appeared behind her.

"—!" Ritsuka's eyes widened, and she shouted loudly, ignoring the thick fog in the air, "Mash! Behind us!"

"Little girl—!" Kintaros and Ryotaro saw each other, but just as they raised their axes, the other attacked Mashu.

"!?!" Mash turned her head, clearly taken aback.

What came into view was a small figure, holding two short knives and stabbing at her.

"Oh no—!" Mashu realized something was wrong and quickly twisted her body to try and block the opponent's attack with her shield.

But... the silver figure appeared in front of me in an instant.

"...Get out of the way." Then, he pushed Mash aside with one hand, while Nencho held the Time Gun Sword in his left hand.

"Clang—" The two short swords collided with the raised blade of Nian Zhuo, and the scattered sparks illuminated Nian Zhuo's mask.

Unable to see the other party's appearance hidden under the black robe, Nianzhuo forcefully lifted the sword blade upwards.

"Hiss—" The airflow scattered erratically, blowing the dark shadow not far away.

"What?! Mashu! What happened to you over there?!" Looking at the screen that showed nothing, Mary slammed her fist on the table in frustration. "Damn it, I can't hear anything here."

"We've been attacked by the enemy!" Mashu's voice sounded shaken. She patted her chest. "Initial assessment is that it was a sneak attack... but I didn't feel anything!?"

On the other side, within a few dozen seconds, Nian Zhuo and the figure in the black robe clashed their swords with the opponent's short sword dozens of times.

Finally, Nianzhuo seized the opportunity, knocking away the opponent's short sword and tearing off the black robe covering the opponent's body.

"Come on... who exactly are you!" After flicking his sword and planting the blade in the ground, Nianzhuo stared at the small figure who had instantly created distance between them.

However, when he looked up, it surprised Nianzhuo somewhat.

Its small body was covered with daggers, all of which were the same type of weapons as the two short swords that Nian Zhuo had just knocked away.

In an instant, the opponent gripped the two short knives in his hands again, leaning forward like a beast poised to pounce.

But this was not enough to surprise Nianzhuo; what surprised him was the other person's face.

Silver-gray tousled hair, emerald green eyes, and even more striking is the horrifying scar on his left eye.

Her face looks very... cute, definitely like a little girl.

However, the bandages wrapped around her arms and the daggers all over her body made her someone to be reckoned with.

Black stockings clung to her small legs, and her clothes, in Nian Zhuo's opinion, were completely out of place for someone her age...

However, although the little girl was in a charging stance, she did not launch an attack this time.

"...You are...what are you?" The little girl seemed to struggle to speak, raising her head and scrutinizing Nianzhuo in her emerald green eyes. "A human? Or a magician?"

The thick fog seemed to come alive, surrounding Nianzhuo's body, but Nianzhuo did not make any move after glancing at the fog.

"Not only can you move freely within the magical mist, but you can also move freely within our mist." The look of doubt on her face disappeared, and the petite girl gripped the daggers in her hands tightly. "Or are you a Servant like us?"

“…I suppose so.” Nian Zhuo pulled the sword out of the ground, his gaze sweeping over the increasingly thick fog around him, finally settling on the other person’s seemingly young face. “Just a Kamen Rider passing by. Remember that.”

"Masked... Knight...?" Tilting her head, the girl couldn't understand what Nian Zhuo was saying at all.

"You're a Servant, aren't you?" Standing behind Nencho, Mashu sized up the girl not far away and cautiously began to speak, "Although you should have been a human from this era. —Am I right, Jack the Ripper?" She then uttered the girl's true name.

“She murdered numerous women in London at the end of the 19th century, and not only that, she dismembered all her victims…” Looking at the petite girl in front of her, Mashu found it hard to believe that all of this was done by this little girl. “Not only that, she also challenged the London police. She was a legendary serial killer. She was a symbol of terror that swept across Britain at that time… no, it swept across the entire continent of Europe.”

"Do you know us?" The girl called Jack looked happily at Mash behind Nencho, a joyful smile on her face. "Really? I'm so happy. Hmm... I'm so happy, then..." She spoke in a cute tone, but Jack uttered words that sent chills down one's spine.

She pointed the dagger at Mashu behind Nianzhuo, her adorable smile undiminished.

"You know what we'll do to you, right? I'm so happy, so happy!" Crouching low, like an arrow released from a bow, Jack launched another surprise attack. "So happy... Ah!!"

"Don't even think about it!" Nian Zhuo held his sword horizontally, the air surging as he slashed at the attacking girl.

"Hehe...hehehehe!" She let out a terrifying laugh, but the girl's petite body became her best support at this moment. Swaying in the wind, she finally passed through Nian Zhuo's slash.

"Here it comes!" Seeing that the opponent had dodged Nencho's attack, Mash raised her shield, firmly protecting Ritsuka behind her. "Master! Please give the battle orders!"

"Whoosh—" The girl's body curled up as several daggers were thrown from her body, striking Mash's shield with a clanging sound.

"Hmph—!" Then, Kintaros manipulated Ryotaro's body and swung his axe at the attacking girl.

However, the opponent was simply too agile.

With a twist of her body, the girl gripped the dagger and stepped onto Kintaros's shoulder, raising the two daggers in her hand and plunging them into his back.

The dagger clashed with the back armor of the Electric King, producing another crisp clanging sound.

"Tch... So hard..." Jack clicked his tongue and stomped hard on Electro's back just before Kintaros turned around and swung his axe blade, his small body disappearing back into the fog.

"Where did they go..." Mashu looked around warily, while grabbing Ritsuka's arm behind her.

"...Hmph, it seems I'll have to use some unexpected methods." Then, Nian Zhuo closed his eyes, and the four hands of the clock above his head began to turn.

In the blink of an eye, the future unfolded before him.

"So that's it, there...!" Nian Zhuo opened his eyes again, a flash of purple light in his eyes, and raised the Time Gun Sword with both hands. He suddenly turned around and rushed towards Mashu's back.

The sword swung down, but it seemed to cut through a fog from which nothing could be seen.

but……

"Clang—" The blade clearly struck metal, sparks flying.

"Tch... Can you see us...!" A girl's slightly resentful voice came from the mist, and a small figure appeared from the mist, it was Jack the Ripper who had just disappeared.

"I don't need to see you!" Nian Zhuo thrust the sword forcefully, knocking the girl back. He pointed to the clock hand on his forehead. "I only need to know where you'll appear."

"Phew...that scared me to death~" Only then did Ritsuka pat her chest. "I was so scared when I saw Nencho-san rushing over~"

"Hmm, but he's still very reliable, Mr. Nianzhuo." Mashu watched Nianzhuo fight Jack again, but her grip on the shield remained firm.

“…Then, let’s try this!” Jack’s body nimbly leaped between the surrounding walls, constantly swinging the daggers on his body.

"Clang clang clang—" Nian Zhuo moved his sword to block all the incoming daggers, and at the same time raised his head to look at the last slash, the last short knife that came straight at his face.

“…” Nian Zhuo turned his head slightly, showing no panic whatsoever, nor did he back down.

He let the short knife fly straight past, his gaze lingering on Jack's small body beside him.

With a slight raise of his hand, purple light enveloped Nian Zhuo's fist, which then slammed into Jack's side.

"Ah—!" A cry of pain rang out as Jack's small body was instantly sent flying, crashing into a wall and creating a sizable dent.

"Ugh—!" Jack landed on the ground, trembling. He raised his head and took a deep look at Nianzhuo, who was still standing there.

However, Nianzhuo did not pursue them, but instead raised his sword and stood in front of Mashu and Ritsuka.

"...You bad guy." Jack complained in a little girl's voice, a purple magical light emanating from his body.

In the blink of an eye, his previously empty dagger pockets were filled again, and he instantly pulled out six daggers with both hands.

"Whoosh whoosh whoosh—" Like a storm, Jack threw all the daggers on his body at Nianzhuo as if they were free.

"Clang—clang clang clang clang—" Similarly, Nian Zhuo kept moving the blade, sweeping away the incoming daggers one by one.

However, when there were too many of them, some of the turbid thoughts were unable to be blocked and crashed into their own armor, producing a screeching scraping sound.

At the same time, Jack placed his small hand on the side of his abdomen where he had just been hit by Nian Zhuo, and a soft green light emerged, causing his tightly furrowed brows to relax slightly.

Surgery: E - A rare healing skill among Assassins.

Finally, feeling his body fully restored, Jack raised his head, his emerald green eyes fixed on the unharmed Nencho... and Mash and Ritsuka behind him.

Her figure vanished from the spot like a ghost, but just as Mashu and Ritsuka were on guard again, she appeared from the side, picked up the black robe that Nencho had just thrown aside, and wrapped it around her body. Mist surrounded her, gradually blurring her figure.

Stepping onto the surrounding walls, Jack's small figure disappeared into the thick fog in the blink of an eye.

Nian Zhuo slowly sheathed his sword.

“The dynamic response has disappeared…” Mary’s voice also came through the communication device. “I don’t know if they’ve retreated or hidden in the thick fog.”

“…Yes, he is a very dangerous enemy Servant.” Mash nodded, still feeling fear about the attack that she hadn’t initially realized.

“However, it wasn’t all for naught.” Mary stroked her chin, looking at the analysis report in her hand. “Based on the area that could be analyzed during the battle, part of this fog is probably that Servant’s Noble Phantasm. But the magical fog permeating London is something else entirely. It’s more like the effect of two fogs combined. What a troublesome enemy…”