The Five Elements Celestial Net Divine Light flows with Clear Spirit Primordial Qi, completely incompatible with the Ultimate Yin Filthy Qi. It's like a drop of cold water falling into a pot of oil, instantly igniting the Ultimate Yin Filthy Qi.

The intense primordial qi disturbance also caught the attention of nearby demons.

The demons on the seventy-seventh level spend their days slaughtering each other, as the Ultimate Yin Filthy Qi continuously transforms, causing the number of demons to grow steadily.

Sensing the abnormal change in primordial qi, the demons pounced without hesitation.

These demons are just like beasts, perhaps even less intelligent than animals. The brains of demons only retain the instinct to fight.

Waves of demon qi surged towards Gao Xuan like black clouds. In the black demon qi were wrapped demons, all hideous and ugly, resembling half-human, half-beast. Their most distinctive feature was the myriad of blisters and protrusions covering their bodies, making them extraordinarily terrifying.

Having stayed in the Cave of Ten Thousand Demons for so long, Gao Xuan understood why demons had such appearances.

Because demons are born from demon qi and resentment, they are not naturally occurring life, hence their appearance is particularly hideous and grotesque.

More importantly, the demon qi is too filthy, even demons themselves struggle to fully transform it. Thus, their skin grows numerous bumps and blisters.

No matter how powerful these demons are, their lifespans are short and sometimes even shorter than those of ordinary humans.

At least hundreds of demons rushed over, attracted by the scent of primordial qi. The smallest of these demons stood several feet tall, while the largest towered several dozen feet.

Gao Xuan unleashed the Five Elements Celestial Net Divine Light, the red, white, blue, yellow, and black rays swept out, instantly blocking hundreds of demons.

The five-colored rays contracted abruptly like a long strip, wrapping around most of the demons and crushing them instantly with Five Elements Power.

However, dozens of extraordinarily large demons, though tightly wrapped by the five-colored rays, managed to hold on momentarily.

Gao Xuan transformed the Five Elements Celestial Net Divine Light into billions of light needles, piercing deep into the bodies of many demons.

Billions of thread-like five-colored divine lights penetrated enormous demons in their midst. As the thread-like divine lights twisted, dozens of gigantic demons were sliced into fragments.

Under the corrosion of Ultimate Yin Filthy Qi, the fallen demons quickly dissolved into pools of dark pus and blood.

Gao Xuan withdrew the Five Elements Celestial Net Divine Light; the effect of this strike was satisfactory, but just satisfactory.

The characteristic of Five Elements Celestial Net Divine Light is its infinite variation, but it lacks the strength for powerful assaults. Against physically strong demons, its power is lacking.

Gao Xuan tried various techniques to unleash the Five Elements Celestial Net Divine Light, which greatly enhanced various Five Elements Magic, yet facing demons, the power was still insufficient.

At least, it did not match the level the Five Elements Celestial Net Divine Light should possess.

After trying multiple approaches, Gao Xuan felt that the Five Elements Celestial Net Divine Light was missing a crucial technique to truly unleash its potential.

Otherwise, the Five Elements Celestial Net Divine Light could merely serve as a Protective Spiritual Artifact. Because the Five Elements Celestial Net Divine Light is densely intertwined, preventing the breach of myriad techniques, it's ideal for protection.

Yet Gao Xuan was not satisfied with this result, as he had the Primordial Cross-Training Golden Body, negating the need for a strong Protective Spiritual Artifact.

Using the Five Elements Celestial Net Divine Light solely for personal protection would be a waste of its intricacy.

However, the Formless Nine Revolutions has its limits; without sufficient information, it's challenging to deduce the optimal magic technique to harness the Five Elements Celestial Net Divine Light.

With countless demons available for experimentation, Gao Xuan did not hesitate to exert power. Thus, after several dozen days, he exterminated all demons on the seventy-seventh level, yet no breakthrough was made with the Five Elements Celestial Net Divine Light.

Of course, it wasn't entirely without progress.

The Five Elements Celestial Net Divine Light could carry the Celestial Capital Soundless Thunder Sword, significantly increasing its power. Yet the Five Elements Celestial Net Divine Light itself did not truly complement Celestial Capital Thunder, making it unwieldy during deployment.

Given Gao Xuan's cultivation, it was more convenient to use the Celestial Capital Soundless Thunder Sword independently.

Gao Xuan still put aside the Five Elements Celestial Net Divine Light; he had a plan, but it wasn't suitable for now. He awaited an opportunity to absorb appropriate Tribulation Thunder power to create a lower-tier version of the Five-Colored Divine Light Thunder Sword.

For now, his focus was to completely clear the Cave of Ten Thousand Demons.

No longer wasting efforts on the Five Elements Celestial Net Divine Light, Gao Xuan managed to speed up his advance.

Entering the seventy-eighth level, the Five Elements Celestial Net Divine Light transformed into a gauze robe on Gao Xuan, its clear light flowing naturally drew the attention of countless demons.

On this level, the space of the cave had expanded several times. Here, the demons had already divided the area into territories, with leaders emerging among the demons, able to begin unifying them.

Though a swarm of demons still gathered chaotically, they began to acknowledge leadership. This organizational state roughly equaled a wolf pack, possessing rudimentary structure.

Upon entering their territory, the demons no longer charged mindlessly but encircled Gao Xuan, surrounding him.

Gao Xuan didn't waste time, raising his left hand, and five Dark Gold Claw Blades formed a giant dragon claw, descending from the void to seize tens of thousands of demons.

The Dark Gold Claw Blades constricted, crushing over ninety percent of demons on the spot. Only a few gigantic demons comparable to Human Immortals fought desperately, merely extending their lives by a single breath.

The Eternal Celestial Dragon Claw does not fear filth pollution, while the Great Mighty Celestial Dragon Seal's demon-subduing power directly counters demons, combined with Gao Xuan's Inversion of Heaven and Earth Technique, killing these demons was effortless.

The five strong demons were swiftly shredded into pools of dark pus and blood.

With a flash of black flame on the Eternal Celestial Dragon Claw, most of the pus and blood turned to ash. The remaining black blood crystals were absorbed by the Eternal Celestial Dragon Claw.