Louis had always wanted to find a suitable target to test the power of the fully unleashed nuclear explosion technique.

Unfortunately, there weren't many strong individuals qualified to withstand this strike, and their size was too small, making it impossible to fully utilize the terrifying attack range of the nuclear explosion technique.

Moreover, if it wasn't used against a formidable opponent, there was no need to fully unleash the nuclear explosion technique.

Otherwise, the momentary weakness caused by the massive loss of extraordinary energy during high-level combat could prove fatal.

Just like a scene from "No Game No Life: Zero," where using a Heaven's Strike led to the regression into a little loli form.

If someone of the same or even lower level with combat power was present, they would be nothing but lambs to the slaughter.

At that point, the game-over would truly occur.

But today, he finally got his wish.

Targeting a being from the Divine Realm, known to stir storms even in the astral world, he launched a cataclysmic strike.

The nuclear explosion technique, layered with various effects, finally demonstrated its full might at this moment.

The Cosmic Serpent, who was just about to escape the Eye of Dread, collided head-on with this attack.

The shockwave created by the nuclear explosion technique swept across the surroundings with unbelievable speed, uprooting giant trees, tens of meters, even dozens of meters high, which flew across the sky, carried by the shockwave.

During his last battle with the Desolate Bone Great Demon, he realized that pure destructive power had little deterrent effect on such beings from the Divine Realm.

Simple energy had a hard time affecting the evolved divine bodies.

Only by tearing through the protective rules could one inflict more effective damage.

Yet Louis still chose to start with the nuclear explosion technique without hesitation.

Because from the very beginning, the nuclear explosion technique was not a conventional spell.

No ordinary spell could elevate power to such a level.

And without special means, people of future generations could not possibly learn the nuclear explosion technique.

Because the structure of this spell is essentially the fireball technique, merely with a rule model overlaid on the spell model to maximize power.

Interestingly, this fireball technique model was not a first iteration.

Olivia, using the rule of the cardinal sin of Sloth as a prototype, enhanced the fireball technique into the constantly chargeable second-circle spell [Delayed Fireball Technique].

The second-circle [Delayed Fireball Technique] was blessed by the cardinal sin of Lust, which, when mutated by Louis, became the tenth-circle [Nuclear Explosion Technique].

But that wasn't the end.

Infused with high-quality extraordinary power fortified by the Vast Ocean rules, it replaced the ordinary magical power usually used for the [Nuclear Explosion Technique], fully utilizing the base of the nuclear explosion technique while enhancing energy density.

Then further strengthened by the divine favor of the Goddess of Wealth by Louis.

Only then did it achieve the earth-shattering deterrent power of the [Fully Unleashed Nuclear Explosion Technique] today.

Strong!

A strength incomprehensible to most!

Layer upon layer of rules stacked onto the [Fully Unleashed Nuclear Explosion Technique] not only amplified the power but also forcibly conferred armor-breaking damage through the power of the Goddess of Wealth.

The armor-breaking damage was a harsh critical strike.

The next second, the world echoed with a pained roar.

The Cosmic Serpent, its defenses broken!

A physical breach in defense.

Horrific damage shredded vast amounts of flesh and transformed it into a rain of blood, spilling over the surrounding forest.

The energy radiating from the flesh caused countless vegetation to rapidly undergo mutations, but most withered instantly, unable to withstand the power.

The mix of the stench and burnt aroma created an unfathomable and bizarre scene.

Seeing the Cosmic Serpent hurt, all the demigods and even legends mercilessly attacked their downed prey.

Attacks drenched with the radiance of laws inundated the Cosmic Serpent like tidal waves.

The ceaseless, agonizing roars continued.

Countless forces gathered in the sky, momentarily creating an overwhelming light pollution-like effect.

The intense pain enraged the Cosmic Serpent, whose body flowed continuously as ancient runes oozed from beneath the skin, transforming into a rune barrier that blocked most of the attacks.

"You ants, you've angered me,"

A chilling hiss rang out as it opened its colossal mouth capable of swallowing the heavens, sweeping terrifying torrents of energy across the surroundings.

Wherever it passed, hills turned to abysses, mirroring an eraser sliding across a canvas, erasing all traces of existence.

The Cosmic Serpent clearly harbored deep hatred towards Louis.

After blasting the other demigods and legends into the ground, the boundless energy continuously flowed in Louis's direction.

What an awe-inspiring sight!

Within just a few breaths, a continuously expanding abyss emerged on the land of the Monet Kingdom, stretching towards the horizon.

Like a massive scar on the world, etched upon the land.

Those powerful beings who had arrived here couldn't allow it to continue its reckless rampage.

They ascended into the sky again, initiating their counterattack.

The first to act were three demigods from Tunisia.

They hadn't fully exerted themselves since the beginning of the battle, secretly preparing something unexpected.

Now, Louis finally understood what they had been up to.

The sky was shrouded with clouds, and the thunderous roars shook heaven and earth, even drowning out the cries of the Cosmic Serpent.

Unbeknownst to the rest, they had somehow transported a main turret of Ninos's Wrath into the demi-plane and brought it here.

The two individuals had been hiding there, allowing Ninos's Wrath to store energy in advance.

In this instant, even the normally rain-soaring Cosmic Serpent had to bow before the might of the mage's technological treasure.

Its colossal body not only made it a target but also served as a shield for others to protect themselves.