-1477- [ Furnace ]

"———"

In that instant, the three girls present lost their words.

A tranquil silence visited the area, enveloping everyone, altering the atmosphere.

Freon, Cris, and Elis stared blankly at the object before them.

It was a furnace.

A furnace that pulsed rhythmically, much like a heart.

The furnace looked as unremarkable as an ordinary hearth, but it was inscribed with extremely intricate runes, each slowly flashing and emitting a terrifying aura.

All the surrounding mana reactors were connected to this furnace. Not only were there compressed mana reactors, but even high-grade mana reactors—an astonishing number of them. Altogether, they probably exceeded the number of high-grade mana reactors distributed to the floating cities.

These mana reactors were all devoted solely to this furnace.

Countless mana reactors continuously generated mana, supplying the entire facility.

A large number of compressed mana reactors continuously refined mana into compressed mana, compressing it to its limit.

Then, the high-grade mana reactors further refined the compressed mana into high-grade mana, compressing it even further.

This high-grade mana then flowed into the furnace, burning like a flame within.

Each time one of the intricate runes on the furnace flashed, the burning high-grade mana would pulse, causing the entire furnace to throb like a heart.

Freon, Cris, and Elis could feel the flames of mana within the furnace slowly compressing, converging, transforming, and undergoing a qualitative change with each pulse, concentrating into an unimaginable essence.

How mysterious.

How beautiful.

How magnificent.

How sacred.

The three girls felt as though a god was being born before their eyes, causing their bodies to tremble.

Seeing this, Rozen smirked and spoke slowly.

"To complete the miracle within this mana furnace, I spent over a year creating this facility, pouring countless efforts into it. Everything here is beyond your understanding."

To develop Foreign Mana, the resources of this world alone were insufficient.

To say nothing of the powerful and mysterious materials needed to contain such immense power, which were overwhelmingly scarce.

After all, this world had neither Phantasmal Species nor the mystical items of myth—only countless armored beetles and magical technology far inferior to Rozen's level. How could there be resources sufficient to develop Foreign Mana?

Bluntly speaking, even in Chaldea, unless Rozen directly used the power of the Holy Grail he had recovered, it would have been impossible to gather the resources he needed.

Thus, apart from the most basic components, all the facilities and equipment here were created by Rozen using his unparalleled summoning technique. He summoned various mythical creatures, defeated them without forming a contract, and extracted rare materials from their bodies, then used his vast knowledge of magic and jujutsu to craft the necessary tools. Only then was he able to complete this.

Rozen even used the summon divine spirit technique to summon only a part of a god without summoning their full form, using that part as material. He then created the furnace to nurture Foreign Mana, embedding eighteen Primordial Runes within it.

So, Freon, Cris, and Elis were not mistaken.

The pulsating mana furnace before them, though lacking the physical form and will of a god, was otherwise indistinguishable from the concept of a "god."

Moreover, Rozen had inscribed all the wisdom and crystallizations of the Primordial Runes, coveted by the gods, onto the furnace, endowing it with divine power.

In other words, what Rozen was doing was akin to using a god as a mother, injecting an embryo into it, and using the concept of "god" as nourishment to birth something unimaginable.

To achieve this, Rozen single-handedly created this massive facility, using countless miracles unknown to this world.

Of course, Rozen also utilized some of this world's resources, such as the manpower from the Alchemist Division, the bodies and fluids of certain rare variant armored beetles, and various other conditions, combining all these elements to create this awe-inspiring facility.

"Now, the flames of mana within the furnace are gradually transforming, combining the power and essence of this large-scale miracle facility, bit by bit, as it ascends to a higher dimension."

Rozen gazed at the furnace before him, looking at the flames within, and spoke word by word.

"When those flames fully take shape, that will be the moment when an unrivaled, supreme power is born."

These words entered the ears of the girls, shaking their hearts.

Especially Cris and Elis, who, upon gazing at the flames within the furnace, felt a tempest raging within them.

From those flames, the two girls felt a sense of dread.

They had no doubt that if this power were to take shape, it would be terrifying beyond compare, overwhelmingly powerful.

(This must be a power that even Collapse Force cannot match...!)

Elis trembled at the thought and looked at Rozen's smiling profile with fear.

Was this man really developing such power?

Honestly, Elis couldn't comprehend what was happening here.

She couldn't understand the power within the furnace, and just looking at the runes inscribed on the furnace made her feel as though her scalp was tingling, her perception was being disrupted, and she was on the verge of a mental breakdown.

Elis couldn't imagine how this facility had been built with such methods.

She could only imagine one thing.

When this power finally came into being, what changes would it bring to this world? What kind of obstacles—or even danger—would it pose to Onii-sama?

(No...!)

This power must not be allowed to come into existence!

With that thought, Elis felt a sudden, irresistible urge to destroy the furnace in front of her.

However, the moment she had this thought, a sense of danger welled up within her.

"...!"

Elis was startled.

Only then did Elis realize that Rozen was watching her.

"What's wrong? Are you scared, Ms. Elis?"

Rozen spoke with a half-smile.

His eyes were cold.