Isekai Adventure in the Dimensional Cube

In other words, this world exists in such a form; it must have both inside and outside, and it cannot lack either.

Given this, even at the peak of the time when the three holy swords were in the source, the Abyss was only sealed, not completely isolated. Otherwise, the Abyss couldn’t pay the huge price to open the door between two planes and launch a full-scale invasion of "that empire," destroying it.

Therefore, theoretically speaking, it’s impossible to completely isolate the two planes.

Of course, if the goal is just to close a passage, this sacrificial ritual can still be done.

So, when Beluti saw Reiger stepping onto this black land, directly facing the incoming army from the Abyss in front of the Abyss Gate, she resolutely made the decision.

She decided to sacrifice herself, performing the ritual to completely close this Abyss Gate.

From the very beginning, Beluti came with the intention of sacrificing herself.

"Saint Beluti...!"

"You...?!"

Seeing the flames suddenly ignite on Beluti’s body, Melo and Naisa simultaneously realized something and were greatly shocked.

However, Reiger, at this time, was completely unaware of Beluti’s situation.

Because he had already taken action.

"Boom!"

Accompanied by the holy sword being lifted high, an unprecedented aura exploded from Reiger’s body like a volcanic eruption, soaring into the sky and piercing the clouds.

An aura of ancient, timeworn, mysterious filled Reiger at this moment, causing his eyes to seem void of human emotions, instead filled with a god-like will, becoming radiant and indifferent.

"Roar!"

"Howl!"

"Woof!"

Seemingly sensing the power of the holy sword, recognizing the presence of their nemesis, the army of abyssal creatures in the spatial rift let out roars and howls, even slowing their charging speed.

Especially the Abyss Demon Lords among them, each one’s face changed drastically, and their speed sharply decreased as well.

In response, Reiger didn’t hesitate at all, slashing down the holy sword in his hand.

"Buzz——"

Instantly, a radiance bright enough to illuminate the entire heavens and earth appeared. 𝙛𝓻𝒆𝒆𝒘𝙚𝓫𝙣𝙤𝒗𝙚𝓵.𝙘𝙤𝙢

That radiance could be described as a light explosion.

The true form of the radiance was a sword light.

A sword light capable of cutting through the world, slicing through space and time.

The sword light descended like Divine Judgment from the heavens, slicing through the spatial rift while advancing forward, cutting through space inch by inch.

"Boom!!!"

The colossal sword light slammed into the army of abyssal creatures, wiping out everything in its path.

Faced with this sword light, neither the abyssal creatures nor the Abyss Demon Lords could even let out a wail before they vanished without a trace in the light.

Such a radiant sword light advanced all the way, eradicating countless abyssal creatures before disappearing into the depths of the spatial rift.

"Roar!"

"Howl!"

"Woof!"

The abyssal creatures felt terrified by this, yet it seemed to ignite a ferocity deep within them, letting out even louder roars and howls while charging faster towards this side.

The Abyss Demon Lords were the same; though they trembled with fear, their inner ruthlessness drove them to continue attacking, with no intention of retreat.

They weren’t unaware of the holy sword’s strength and fearfulness.

But just like Panisa and Bikamo, thinking of how such power would inevitably threaten the Abyss and hinder their invasion of the Source, they were determined to try and kill Reiger.

Invading the Source, devouring its life, was the instinct of abyssal creatures, and also their desire.

Being able to devour more life from the Source meant gaining more power; risking their lives was not something these inherently cruel and bloodthirsty abyssal creatures hesitated over.

In a certain sense, abyssal creatures were more mad and incomprehensible than abyssal devotees, their way of thinking forever beyond the understanding of normal people.

Their only thought now was to...stack their lives to eliminate the threat before them, no matter how many it took!

"Hmph!"

Reiger could naturally sense the madness of his opponents’ will, letting out a cold snort and slashing out another sword.

"Boom!!!"

The sword light, akin to a divine strike, once again stormed into the Abyss Gate, falling upon the abyssal army, exterminating a large number of abyssal creatures, even a few Abyss Demon Lords.

However, the sheer number of abyssal armies was simply too vast, seemingly endless, quickly replenishing despite having suffered heavy losses.

They roared savagely, snarled fiercely, with momentum so overwhelming it seemed to engulf the whole world, terrifying anyone.

"No, this approach won’t work."

Reiger realized rationally.

Even though he could swing his sword one after another, slicing hundreds or thousands of times in a second wasn’t an issue, it was still impossible to exterminate all the abyssal creatures.

Sooner or later, they would reach the Source, and they would keep coming.

At this moment, Reiger deeply understood what the violence of numbers meant.

The creatures in the Abyss were far more numerous than he had imagined.

"Given the current situation, I can either retreat directly; even if I can’t stop them from coming, they won’t stop me from leaving."

"Or... I must close this passage."

Reiger looked towards the Abyss Gate, which had linked the Abyss and the Source for eleven thousand years, a mere space rift close by.

"Beluti..."

Reiger wanted to turn his head, searching for Beluti, to ask her truly to close this gate.

However, before Reiger could turn his head, Beluti’s voice reached his heart first.

It was a mental communication via the contractual connection.

"Thank you for your protection all this way, my lord."

At this moment, Beluti’s voice was softer and more pleasant than ever.

"Leave the rest to me."

As her voice fell, a mass of pure, immaculate flame like Holy Light appeared before Reiger.

In the flames, Reiger vaguely saw a glimpse of Beluti’s bare, naked figure.

"Beluti! You...!?"

Reiger realized something from the life-filled flames, his expression changing finally.

But, it was too late to stop it now.

"————"

In the flame, Beluti turned her head, seeming to smile faintly at Reiger, proceeding resolutely into the spatial rift, into the Abyss Gate.

The white flame immediately expanded, swiftly filling the entire Abyss Gate and the entire spatial rift.

Reiger’s vision was completely dominated by the white flames, making the roaring abyssal armies disappear from sight.

Although close, bright, and numerous, Reiger felt no heat from the white flames; instead, he felt a gentle warmth, stopping him from taking any action, placing him into silence.

"Buzz——"

At this moment, a hum tremoring throughout Mistigo burst forth.

The white flames acted like an adhesive, slowly repairing the broken space, making the spatial rift smaller and narrower, gradually disappearing.

"Roar!"

"Howl!"

"Woof!"

The abyssal creatures’ roars and howls came from the other side of the flames, filled with unwillingness, resentment, and rage which Reiger could distinctly sense in its negative emotion.

But this didn’t stop the white flame at all, nor prevent the space from being repaired, or the Abyss Gate from closing.

And so, after an indeterminable amount of time passed, the sounds of the abyssal creatures vanished completely.

Along with that, the space rift that existed for eleven thousand years disappeared.

"Rumble——"

The pitch-black Abyssal Aura roiled violently in the sky, like a homeless creature, in panic.

Reiger watched all of this, silent for a long time.