They've already fought their way through the Holy Grail War, and you still call them dragons?

After the atmosphere eased a little, Ms. Da Vinci from Chaldea was introduced to everyone.

"Hey! A famous genius of the Renaissance, but I remember that Leonardo da Vinci was a man?" Nono was surprised.

Even Eri had seen Leonardo da Vinci's world-famous "portrait face," and her mouth opened slightly as she exclaimed, "So beautiful! Just like the Mona Lisa, the painting has come alive!"

"Thank you, I also think this appearance is very beautiful, I like it too! Just call me Da Vinci!" Da Vinci smiled. She was of course very happy to be appreciated by others, and she herself also appreciated this appearance, otherwise she would not have deliberately designed herself to look like this.

"Ahem, that's enough introductions. Let's get back to the point. I didn't have time to mention just now that the Shadow Border is a crucial tool designed by Da Vinci and modified by the Atlas Institute. I brought it here to test its capabilities and performance..."

As Emiya spoke, Da Vinci added, "A more accurate name for Shadow Border now should be an amphibious multifunctional imaginary submarine!"

Amphibious capability is the second major upgrade besides the firepower system. It was an enhancement proposed by Leonardo himself during his time at the Atlas Academy. Clearly, Leonardo prioritized versatility over firepower, focusing on multi-purpose and multi-scenario capabilities.

The researchers at the Atlas Institute responded with a rare willingness to agree, but their thinking was simply not on the same wavelength as Leonardo da Vinci's.

Their focus is that amphibious warfare can make firepower tilting more flexible. For example, Shadow Border can fly away and dive underwater immediately after firing a cannon, using the disgusting tactic of flying a kite beyond visual range to make the ancient enemies who fight on two legs stare blankly.

When it comes to moral integrity, they can really pat their chests and say, "What's the use of that thing?" So don't worry about whether this fighting method is despicable or not, just say whether it is useful or not!

"So that's how it is," Nono suddenly remembered something, "I was wondering why something came in from the dock just now. It turned out to be Chaldea's Shadow Border."

The vast Chaldea branch before them was as vast as a hollowed-out mountain—this wasn't an exaggeration; it was truly enormous. The living quarters where Nono and the others usually stayed occupied only a small portion of it. The rest included docks, training rooms, research labs, work areas, power supply areas, and so on.

Chaldea and Kassel Academy are also digging deep into the mountain. Both are located on the mountain. The former, in addition to Chaldea's main building housing research rooms, a cafeteria, dormitories, and a medical clinic, also houses a vast underground power plant. The latter, in addition to campus buildings, also houses numerous facilities beneath the ground, including the Norma mainframe and the Well of Oblivion.

The group left the small hall used for personnel entry and exit and went to the enclosed dock on the other side.

When they arrived, Shadow Border had already surfaced and reached the shore. When the side door of the ship opened, Constantine's head popped out from inside.

"Excuse me everyone, I think I'm docked at the right place, right?"

He shrank his neck after saying that. Although this place was a super stronghold designed and built by his brother himself, it was Constantine's first time here.

"Yes, you did a great job, Captain!"

Emiya said jokingly.

"Hey, is he the captain now?" Da Vinci said, pursing his lips. "I'd love to drive this newly renovated Shadow Border too..."

"You can open it if you want, but Da Vinci, isn't your job title the Director of Chaldea's Technology Development Department? Unlike Captain Constantine, you don't have to go to the singularity front."

"Then let me try it when you're not on the front lines! Like, right now!"

"Okay, let's test out Shadow Border's new weapons and super functions!"

Emiya waved his hand and instructed Constantine to drive the amphibious ship ashore and head in the designated direction.

The group followed with great enthusiasm. Even Eri imitated BB and yelled, "Great! Let's take the test!"

----

After the wide door opened, Shadow Border drove in and arrived in a bright new world with everyone else.

The towering circular mountain range instantly blocked most of the crowd's vision.

They resembled bracelets inlaid in a region of iron-black, hard rock. A still river flowed through the center of the ring, its surface shimmering. A gray storm formed a tornado in the distance, like a funnel at the edge of the sky. Occasionally, tenacious plants squeezed through the cracks in the rocks, waving their waists to the roaring wind and thunder... The scene truly resembled the scenery of a desolate wasteland in another world.

Da Vinci was so surprised that he could hardly close his mouth. "This is... a huge folded space?"

She watched along with everyone else as Constantine drove the Shadow Border to the entrance of a large workshop near the center of the area, and then chose one of the workshop's several doors and drove in.

I didn't expect that there was a different world behind this door.

You know, the entire Chaldea branch is already hidden in Avalon, but there are other alternative Nibelungs hidden in it?

There is a Nibelung inside a Nibelung, where are you putting this nesting doll?

"...I guess so. However, this door isn't always open. The corresponding alchemy matrix will only be activated when it's needed."

Emiya introduced.

This was actually inspired by the "Night Food Source" world built underground in Tokyo, relying on dragon veins.

When commissioning Norton to build the Second Chaldea, Emiya mentioned the Tokyo Dragon Vein and asked if this idea was feasible.

I didn't expect Norton could really do it.

According to Norton, all the various "small worlds" of the Nibelungen actually need a powerful maintainer, otherwise they will collapse.

A replica bronze city like Atlas Court is maintained by Norton himself, and the "Night Food Source" also requires a huge super alchemy matrix like the Dragon Vein to maintain it.

This is like having a powerful observer constantly observing and anchoring a world that is different from reality. Without this observer, a world like the Nibelungen is like water without a source and a tree without roots, destined to collapse.

Emiya automatically understood this as an inherent barrier shaped like a "world egg." Obviously, an inherent barrier also required constant maintenance by the barrier's owner to counteract the world's correction force.

Norton was quite surprised when he first heard Emiya's systematic explanation of the "World Egg" theory. This explanation almost touched upon the essence of the world.

He was amazed at how he almost always accidentally heard from Emiya some "unforeseen path" for himself as the King of Alchemy.

The two then had an in-depth discussion, and Norton developed a special alchemical matrix that works on the world behind the door.

The advantage of this special alchemical matrix is ​​that as long as one has the permission, it can be turned on and off at any time, avoiding unnecessary consumption of the alchemical array and saving maintenance costs, completely surpassing the original rigid Nibelung maintenance mechanism.

It can even be said that when the alchemy array is closed, the world behind the door "does not exist", and when it is opened, the world behind the door appears again.

It was like a living owner of the inherent barrier, opening and closing the inherent barrier according to their orders.

"The hatch is open. Everyone, if you want to see the test results up close, you can come in." Constantine's voice came from inside.

"Great."

Unable to contain his excitement, Da Vinci took the lead, followed by the girls. The former was running so fast, obviously wanting to try his hand at the driving area, while the latter were simply curious because they had never seen the inside.

Emiya remained standing, his eyesight excellent, allowing him to see clearly even from a distance. Furthermore, having already rehearsed the situation at the Atlas Institute using the power of the Tri-Pointed Hermes, he estimated the actual difference wouldn't be significant.

"Why don't you go?"

He turned his head slightly and looked at Xia Mi who was still standing beside him without moving.

Xia Mi shrugged, "I am the chief maid who needs to serve Lord Emiya for the rest of my life. How can I leave my master alone to enjoy himself?" However, when she mentioned the word "serve", her breathing subconsciously quickened. For some reason, the scene of her knocking down Emiya not long ago suddenly popped up in her mind.

Xia Mi folded her hands in annoyance and stamped her feet.

Emiya didn't notice her little action, "Come on, Helvil and Orluen have already gone up, why are you still so reserved?"

"Aren't they sent over by you to be Leonardo da Vinci's temporary assistants?" Xia Mi's reply was surprisingly flawless.

Emiya was speechless and didn't bother to care about what Xia Mi was thinking. It just so happened that Shadow Border had already started its engine and flew into the sky. A bright beam of light shot out from the front of the flying Shadow Border.

"Oh, that's an elemental energy cannon. It's quite powerful." Emiya introduced casually.

Xia Mi watched as this "moderately powerful" beam of light suddenly fell and slammed into a farther part of the ring-shaped mountain range, causing a mountain several thousand meters high to explode in half, and earth and rocks to roll down wildly. For a moment, the world was as bright as day.

She was speechless for a moment, "You call this moderately powerful?"

"Well, after all, there are more powerful weapons." If it wasn't powerful enough, it would have been tested in the Atlas Institute long ago. Why would they come here specifically to test it?

"???"

Rumble, rumble!

Another different type of artillery roared, this time igniting a bright flame that shot up into the sky, just like the terrible fire from heaven when God destroyed Sodom and Gomorrah.

The Hengduan Mountains, which were already unable to bear the heavy burden, burned fiercely and finally collapsed.

"These are cannons made by the people from the Atlas Institute, imitating the elemental reactions of 'Rhine' and 'Zhulong'. According to them, these are ingenious weapons created based on the principle of the Ultimate Word Spirit, 'using a small amount of initial elements to pry the heavens and earth to create an elemental chain reaction.'"

Emiya explained, "From my intuitive experience, even if it's not as large as the Dragon King's own attack, it's not far behind."

"Those crazy researchers are perverts!" Xia Mi opened her mouth so wide that an egg could almost fit in it.

If this kind of technology is developed, doesn't it mean that a single shot from Chaldea's amphibious multi-purpose ship will be equivalent to a Dragon King-level output, making it easy to defeat the Dragon King?

How can these first generation dragon kings retain their dignity? Are they just old things from the old generation who have been eliminated?

"After all, Norton's involvement during the development process helped them quickly overcome some technical difficulties."

"Oh, that's okay." Xia Mi was very accepting this time. At least in her opinion, Norton's perversion was still within the scope of understanding.

"Look at you!" Emiya said speechlessly, "Even without Norton's participation, these people would only need to spend a few more years or even decades to achieve results. And don't be shocked just yet, the finale is still to come!"

"besides!?"

"Well, just like Leonardo da Vinci proposed multifunctional transformation, I also proposed the idea of ​​'ultimate weapon'. Their antimatter bomb was not mature enough, so Leonardo da Vinci and I always rejected it. However, this one I proposed is something that no one else has ever imagined -"

A golden light flashed.

The unidentified flashes emitted from the ship's guns easily cut through the continuous mountain ranges, exerting a powerful divine power that surpassed that of a nuclear explosion.

Chapter 341: All kinds of martial arts, this is the fantasy collapse cannon!

Oh my god, what is so scary!

Because everything happened so quickly, Xia Mi didn't even have time to turn her eyes to identify the unknown golden light, and the shocking white light that followed completely submerged her vision.

Xia Mi even felt a cold sweat quietly seeping out from the back of her neck. She had the illusion that if she faced the huge light that caused horrific destruction, she would be mercilessly blown to pieces.

"What on earth is that thing—"

Her lips trembled slightly, but she only got a simple answer.

"sword."

Emiya grinned and uttered a word.

boom--!

The heaven and earth shook violently, and the vast view in front of her eyes was shaking wildly. When the impact and shock waves reached here, Xia Mi's body couldn't help but shake. After all, she was a Dragon King, so it was not difficult for her to maintain her balance.

But the distant mountain ranges had clearly suffered. The light of judgment descending from the heavens destroyed much of the mountain structure, and piles of earth, rock, and rubble vanished like tiny dust particles in the light. The mountain ranges were abruptly blasted apart, as if a god had wielded a longsword, slashing through the land, leaving behind a dark, abyssal chasm.

"sword?"

After hearing this word, Xia Mi was a little confused for a moment. What does a cannon have to do with a sword?

Could it be that the beam of light wasn't a cannonball but a sword? How could it be possible? How could a long-range weapon of this magnitude exist, and how could it be launched in the form of a sword...

Wait, that seems familiar. Didn't Emiya often shoot bows and swords?

Xia Mi looked at Emiya with surprise, and the latter smiled knowingly, nodded and said:

"That's right. During the Shadow Border renovation, I proposed the creation of a long-range naval cannon based on the need to fire sword-type Noble Phantasms. The device itself isn't complex, primarily consisting of the fire control and the barrel. All the ammunition is my own creation."

"These precious swords are mass-produced in advance through projection, and then Shadow Border locks onto the target and fires them. Their power is almost the same as if I had fired them myself."

All kinds of martial arts, this is a fantasy-breaking giant naval cannon!

“…Oh, I knew it!”

Xia Mi thought that only Emiya could create such an outrageous power through the destruction of illusions.

With a little thought, you will know that this method is a convenient and efficient firepower enhancement solution for Shadow Border.

The Atlas Institute does not lack the basic technology for ultra-long-range naval guns. The only pain point (of course, perhaps it is more of a pain point for neurotic researchers) is how to create a bigger explosion.

It's no wonder that Emiya's proposal was accepted by everyone, even by himself. After all, this ammunition was completely in-house, and due to Emiya's exclusive technical threshold, no one else could replicate it, greatly enhancing safety and confidentiality.

Even if the world's most powerful human magicians and alchemists worked together to produce a replica, the cost would increase significantly.

Perhaps if Norton were given time, he could also bring the cost down to about the same level as Emiya. However, Norton also had his own work and it was impossible for him to switch directions and explore other fields.

"Actually, not all Fantasy Honkai Cannons are of this level of power," Emiya continued. "The one just launched was the pseudo-divine weapon, the Murasaki Sword. It can be said to contain a strike comparable to that of a god... while ordinary famous swords and sabers probably only have the destructive power of a tactical nuclear bomb or slightly beyond."

Even so, Xia Mi couldn't help but be amazed after hearing this. She felt that the firepower was already too strong. If they went to the singularity, wouldn't they be able to sweep all the way?

"I simply suggest that when you go to the singularity, your first action goal should be to search for the boss. Your second action is to directly use the Shadow Border to summon the Ame no Murakumo sword and bombard the boss."

Facing Xia Mi's complaints, Emiya thought to himself that it would be better if the bosses of the singularity were all human-machines. In that case, the difficulty of saving humanity would drop sharply, but the problem was that Boss Gai would definitely not be happy to see Chaldea go so smoothly.

He shook his head and said, "Don't be so quick to complain. In addition to the pseudo-artifact Murakumo Sword, there is another ultimate weapon."

"Wow, you've prepared another model for Shadow Border?" Xia Mi's eyes widened. That was a bit excessive. Two Dragon King-level Ultimate Word Spirit attacks, and two Divine-level attacks too?

Emiya nodded and looked up at the sky.

He suddenly whispered, "——Fake Levatin."

The next moment, the ship's guns roared, and bright flames pierced the clouds.

It was like a fireball from outer space hitting the earth, with a power far exceeding that of the "Zhulong-type" elemental energy cannon, pouring down on the innocent and scarred valleys. The raging sea of ​​​​flaming flames swallowed up the mountains in an instant.

Dye the world red.

----

"Hoohoo, these shots are so satisfying!"