Through the surrounding magic runes, Orsaga could tell that this spell required significant preparation.
It was likely either immobile or extremely difficult to move.
Unlike Malcairon, who had to constantly expend energy to maintain the spell, Orsaga possessed [Unholy Wraith Body], a passive ability that operated around the clock without any cost.
No matter where he was, [Unholy Wraith Body] would automatically draw in malice, hatred, resentment—any form of negative emotion—from his surroundings. This would either be stored as energy or directly used to enhance his power.
Admittedly, the enhancement wasn't particularly fast.
At its current strength, this ability could provide Orsaga with ten full resurrections once fully charged with negativity.
Right now, despite being killed over twenty times, he was still in peak condition.
The main reason? This world was teeming with living beings, each constantly generating negative emotions. And with Augustus currently under demonic invasion, it had become a hotspot of negativity.
For Orsaga, it was like soaking in a resurrection spring.
In fact, Malcairon's rate of consuming negative energy couldn't keep up with Orsaga's absorption rate.
Unless someone of a higher Rank completely erased Orsaga from existence with overwhelming force—a power that directly targeted his very foundation—killing him under normal conditions was next to impossible.
The only likely way to defeat him would be to isolate him in a completely disconnected alternate dimension and slowly drain his stored energy. Otherwise, as long as negative emotions remained abundant, his resurrection chances would always stay maxed out—an impossible conundrum for ordinary foes.
Clearly, Malcairon had failed to realize this.
Those ever-present negative emotions may have been visible to him, but their sheer ubiquity made them easy to overlook.
After all, any sentient creature produces negativity to some degree—far more abundant than air itself.
As a demon, Orsaga was fundamentally a creature of negative energy. So those emotions clinging to him were no more remarkable than wool on a sheep.
In essence, one of them was using an active skill that consumed energy, while the other had a passive skill with zero consumption.
On the surface, it looked like Orsaga was the one getting pummeled.
But in truth, the longer the fight dragged on, the more inevitable Malcairon's defeat became.
For Orsaga, this was the epitome of: "Hit me all you want—I'm locked at one HP."
Although Malcairon couldn't see through Orsaga's core, he could still sense that time wasn't on his side.
It was bad enough that he couldn't find a way to deal with Orsaga…
What was worse was that Orsaga wasn't the only demon who had infiltrated Augustus.
If they had entered undetected, they were clearly prepared.
The other defenders in the city might already be in dire straits.
In this situation, if—by some miracle—his allies were winning, that'd be fine. But if the other demons triumphed, and the outer barrier had already been modified, he'd be trapped with nowhere to run, surrounded and torn apart.
To protect himself, he had to move fast and regroup with allies to prevent a complete rout.
Having confirmed that banishment-type spells were useless,
In the frozen flow of time, Malcairon cast sealing spells one after another.
Layer upon layer of bindings wrapped tightly around Orsaga, attempting to immobilize him completely—at least for a short period.
However, Malcairon's mastery of sealing magic was far from exceptional, merely average among mages of his Rank.
Orsaga, on the other hand, was a remarkably gifted Spellcaster. It was naturally impossible to seal someone like him so easily, let alone banish him outright.
The moment the time-stop effect ended, Orsaga began breaking the seals immediately.
One side was shattering them, the other repairing—caught in a relentless cycle of destruction and restoration.
Time dragged on.
After dozens of repetitions of the same back-and-forth—
Orsaga's patience began to wear thin. Doing the same thing over and over again was getting seriously irritating.
"You miserable runt!"
By now, the energy he had been accumulating had nearly reached its peak. In the next instant, he released it all in the form of the Flame Demon's signature spell—[Immolation Burst].
This was an innate ability of every Flame Demon. Think of it like a living suicide bomb.
It triggered upon death, unleashing a massive, indiscriminate explosion.
Its destructive power scaled with the user's strength and bloodline purity.
Orsaga had already stored up this ability from his first death.
Now, driven by fury, he unleashed the force of dozens of [Immolation Bursts] all at once.
A tide of infernal bloodflame erupted, radiating unfathomable heat.
In a split second, it engulfed everything nearby.
Like a wave of absolute destruction, it surged outward, devouring all in its path.
Malcairon immediately sensed something was wrong.
Without hesitation, he cast [Time Stop], hoping to interrupt Orsaga's actions.
But in the blink of an eye, the spell shattered.
It was like trying to stop a speeding train with a twig—utterly laughable.
At that moment, the sheer force Orsaga unleashed was in a completely different league.
The materials constructing the library, the energy in the air, even the very fabric of space—all were instantly vaporized. And the magic runes that relied on space were obliterated as well.
That temporary time axis was like ice cream thrown into a furnace—it melted before it could even react.
With no further obstruction, Malcairon and the nearby onlookers—battle mages, adventurers, and warriors alike—were incinerated along with the surrounding buildings.
Their defensive spells and enchanted equipment proved utterly useless.
Downstairs, others engaged in battle—both humans and demons—were stunned by the overwhelming power that suddenly surged from above.
But against such absolute force, they were powerless.
They died in shock and terror, with not even a moment to resist.
[Note: According to Abyss Contract Clause X, while "no killing teammates" is stated, collateral damage in unavoidable "emergency situations" is tacitly permitted]
Just as the firestorm was about to sweep beyond the library, Orsaga forcibly retracted it with his willpower.
But other byproducts weren't so easily tamed.
Light, the inevitable companion of heat, surged forth alongside the unimaginable thermal energy.
An unmatched, blood-red brilliance exploded outward—like countless suns igniting simultaneously.
It didn't care that the fire had stopped expanding.
It pierced through space. Through matter. Through everything.
The light spread outward in all directions like a crazed flood.
Anyone in the city of Augustus—whether blind from cataracts or with eyes shut tight—so long as their optic nerves still functioned, saw that blinding, crimson light.
Humans, elves, demons, Beastmen, even animals—
In that moment, they were all flash-blinded by the sudden searing radiance.
Millions of screams erupted across the city, indifferent to race or status.
And they all cursed the same being in their hearts—the one who started this.
What they didn't know was this:
If Orsaga hadn't held back out of fear that wiping out all of Demon Lord Ignarok's forces in the city might get him blacklisted, this single strike could've incinerated the entire city of Augustus and reduced everything within it to ashes.
This was a power built upon layers of death.
A true ultimate move, and Orsaga's most devastating form of destruction.
____
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