Boundless Earth.
The alien Sovereign did not directly enter, but instead stood at the breach, using the Futu Imperial Halberd to continuously prop it open, waiting for all the alien armies to enter, leading the endless alien legions to drive straight in and kill their way into the myriad domains at the center of the Sealed Boundary Universe.
Otherwise, he alone, even with a supreme Emperor's weapon, would ultimately be isolated and outnumbered.
He might not necessarily be able to defend the Tenth Emperor's Pass and keep it open at all times.
If other Ancient Monarchs from the Sealed Boundary Universe arrived wielding supreme Emperor's weapons, or even if an Ancient Great Emperor personally took action, he would be doomed if he remained alone.
Only with the endless alien armies defending the Tenth Emperor's Pass for him could he advance and retreat freely within the Sealed Boundary Universe.
Seeing the defensive heavenly curtain pierced, everyone on the Tenth Emperor's Pass changed expression drastically, especially the eight leading Quasi-Monarchs.
The most feared event had finally occurred.
"Everyone listen, all legions immediately gather here and prepare for battle!"
A Quasi-Monarch spoke. On the Tenth Emperor's Pass, numerous legions rushed towards the location of the eight Quasi-Monarchs.
This place faced the breach directly and was the point of greatest impact to withstand.
However, likewise, as long as they held here, the Tenth Emperor's Pass would remain safe and sound.
As the legions on the Tenth Emperor's Pass entered a state of strict readiness for battle, on the Boundless Earth, under the command of alien commanders, the boundless army rumbled forth, transforming into a pitch-black torrent that surged forward.
"Kill—"
Countless alien War Ships soared into the sky, along with massive stellar weapons and numerous skyborne Divine Cities carrying vast numbers of alien warriors, all charging towards the breach in the defensive heavenly curtain.
Now, the Tenth Emperor's Pass was in its decennial weakened state. The defensive heavenly curtain formed by the grand defensive formation had been breached by the alien Ancient Monarch using a supreme Emperor's weapon, creating a massive breach. Countless alien armies were precisely charging through this breach, killing their way towards the Tenth Emperor's Pass.
Simultaneously, under the command of the eight Quasi-Monarchs, the Emperor's Pass legions defending the pass also soared into the sky.
Various Formation Arrays were successively activated.
Naturally, there was more than one Defense Formation; there were many. However, only the formation that formed the defensive heavenly curtain was the most powerful—an Emperor-level formation.
Boom! Boom! Boom! Boom! Boom! Boom!
The alien armies charging through the breach instantly unleashed endless attacks.
These attacks were largely defended against by the Tenth Emperor's Pass itself, and the remainder were blocked by various Defense Formation Arrays.
The alien army's first wave of attacks was thus blocked.
However, it was clear that this was also because not many alien troops could enter. After all, the hundred-li diameter breach could not accommodate War Ships and Divine Cities that were often hundreds or thousands of li in size, blocking a large portion.
Regarding this point, the alien army had long prepared countermeasures. A full twenty Divine Kings took the lead, wielding terrifying Sovereign Immortal Weapons, blasting forth and shattering the various Defense Formation Arrays.
"Kill!"
"Slaughter all these invading alien scum!"
On the Emperor's Pass, the commanders of each legion were either peak Great Powers or Divine Kings, their fury evident as they led the Emperor's Pass legions soaring into the sky, actively engaging the alien army.
Boom! Boom! Boom! Boom! Boom! Boom!
In an instant, the two Ancient Chaos Universes fell into a state of close-quarters combat, with countless warriors from both sides locked in bloody battle.
Almost from the very first moment of engagement, countless warriors were slain, their forms and spirits annihilated.
In such great wars between Chaos Universes, human life was the cheapest commodity. On the battlefield, large numbers of people were slaughtered every moment, over and over again. Great Powers, Heavenly Kings, and even Divine Kings were not spared.
This was the cruelty of war!
Clearly, the alien army surpassed the Sealed Boundary Universe side in terms of the number of strong individuals at every level.
Fortunately, the alien Sovereign needed to constantly use the Futu Imperial Halberd to maintain the breach in the defensive heavenly curtain. Otherwise, this Sovereign and his Emperor's weapon alone would be enough to plunge the Tenth Emperor's Pass into absolute disadvantage, causing countless casualties.
Moreover, the hundred-li breach was neither small nor large—just enough to allow only a small portion of the boundless alien army to charge through, manageable for the legions defending the Emperor's Pass.
Suddenly, from within the hundred-li breach in the defensive heavenly curtain, eighteen streams of light shot through like lightning. Wherever they passed, they easily confronted the Tenth Emperor's Pass head-on, as if facing Divine Kings directly.
"Not good!"
The eight Quasi-Monarchs changed expression slightly and immediately activated ten Quasi-Monarch-level Formation Arrays. Heavenly curtains spanned the sky, and with a series of loud booms—Boom! Boom! Boom! Boom! Boom! Boom!—they blocked the eighteen streams of light.
However, all ten Quasi-Monarch-level Defense Formation Arrays were shattered, clearly having suffered tremendous impact.
These streams of light ultimately transformed into powerful figures, each exuding formidable auras. They were precisely the eighteen Quasi-Monarchs, second only to that Ancient Monarch, the strongest batch of experts among this alien army.
"I never expected the Emperor's Pass to still possess Sovereign-level Defense Formation Arrays!"
An alien Quasi-Monarch said with a surprised expression.
Even so, the appearance of the eighteen Quasi-Monarchs created immense pressure on the Tenth Emperor's Pass.
Without Quasi-Monarchs emerging, who could contend, who could resist?
On the Emperor's Pass, the eight Quasi-Monarchs from the Sealed Boundary Universe side soared into the sky.
Clearly, from the highest level of Quasi-Monarch experts alone, one could see the significant difference between the two Ancient Chaos Universes, with a considerable gap in the number of Quasi-Monarchs.
The eight Quasi-Monarchs of the Sealed Boundary Universe were also helpless, naturally aware that they could not contend against the alien eighteen Quasi-Monarchs.
But besides them, who else on the Emperor's Pass could block these Quasi-Monarch existences?
"How dare a mere eight Quasi-Monarchs block the armies of our Ancient Universe?"
An alien Quasi-Monarch sneered, holding a Dao Pagoda, striding across the void step by step. He offered up the Dao Pagoda in his hand, and immediately, endless demonic light descended from the sky, Sovereign rules swirling, with boundless might, as if a great world was crashing down.
The Tenth Emperor's Pass seemed to tremble slightly as infinite Quasi-Monarch pressure wantonly erupted.
Once it fell, the defending legions on the Tenth Emperor's Pass would inevitably suffer countless casualties.
"Hmph, how dare mere aliens invade our Ancient Universe? Do you truly think this is your alien territory?" A Sealed Boundary Universe Quasi-Monarch coldly snorted, his aura suddenly surging significantly, surpassing that of the alien Quasi-Monarch.
Boom!
With a loud crash, the Sealed Boundary Quasi-Monarch swung a massive pillar in his hand, erupting with blazing Quasi-Monarch radiance, forcefully smashing away that Quasi-Monarch Dao Pagoda, then sweeping it towards the alien Quasi-Monarch.
Pfft—
In a single exchange, the alien Quasi-Monarch was sent flying, coughing blood, his expression quite unpleasant: "Main battlefield augmentation!"
PS: It's past midnight. All students preparing for the college entrance exam, go to bed early. You can read after the exam the day after tomorrow. I'll definitely give you exciting climax parts! Wishing you smooth sailing in the exam and immediate success!