Chapter 425: Immortal Underworld King's Secret Technique

Feng Xiu merely snorted without a word, continuing to unleash an increasingly ferocious sword attack.

Xu Yang, on the other hand, remained calm throughout. He was more like an elder or a coach guiding his disciple's cultivation. No matter what techniques Feng Xiu used, Xu Yang skillfully and effortlessly countered them.

Although this Eternal Divine Artifact couldn't match the might of Feng Xiu's Heaven-Slaying Ancient Sword, its unique demonic properties granted it a substantial boost in demonic energy throughout the battle. After all, this was the Abyss of Ten Thousand Devils. With hundreds of thousands of demonic beings present, even a single breath from each could significantly amplify the Eternal Divine Artifact's power.

Boom!

The two once again unleashed an incredibly powerful clash of sword energy in mid-air. The roaring sword energy reverberated through the surrounding void, reaching over a hundred miles away!

“Must you always oppose me?”

Pressing their divine swords against each other, the two stood mere inches apart. Their eyes locked; one's gaze was filled with murderous intent, while the other's was serene and composed.

“I've told you before, with your current strength, you're no match for me. Yet, you persist in pursuing your ambition. How can I simply stand by and do nothing?”

“Nonsense!” Feng Xiu erupted in a furious, hysterical shout. At the same time, an incredibly potent demonic aura surged from the surface of his Heaven-Slaying Ancient Sword!

While both were demonic energies, the peculiar demonic essence within Feng Xiu appeared distinctly different from the myriad demonic paths under Ailusha's command!

“I can feel that the essence within you is quite unusual.”

Feng Xiu's smile deepened slightly upon hearing Xu Yang's words. “Don't rush, you'll soon see a real surprise.”

Boom!

Meanwhile, Feng Xiu's clone, while ensnaring Ailusha, gradually isolated her from the demonic beings below. At this very moment, Feng Xiu's clone issued a new command to the thousands of inner disciples of the Sword Alliance behind him:

“Activate the Heaven-Sealing Grand Array!”

Upon receiving this command, all Sword Alliance disciples simultaneously soared skyward, each maintaining the same sword-controlling posture. Large amounts of demonic energy simultaneously emanated from within these disciples. Xu Yang clearly perceived that the demonic aura emanating from these disciples was indeed of the same origin as the demonic energy he had just sensed from Feng Xiu.

“To think you've integrated your very bloodline essence into a cultivation method and imparted it to these inner disciples. Are you trying to take their lives?”

Feng Xiu feigned confusion, looking at Xu Yang. “What makes you say such a thing? Is it wrong for me to teach my own disciples?”

Xu Yang's demeanor grew colder. “Do you think I can't discern that the demonic source within you is incredibly violent and powerful, far too much for their physical bodies to bear? The more combat strength they unleash, the more pronounced the recoil on their bodies! If I'm not mistaken, these individuals are merely your inner disciples in name, but in truth, they are war puppets you've cultivated. Once their physical bodies decay to the point of being unable to bear that tyrannical power, you will reclaim their souls and everything they possess!”

Hahaha!

Feng Xiu's scheme was once again exposed by Xu Yang, but instead of anger, it provoked laughter.

“It seems fate truly is unfair. If I, Feng Xiu, was born into this world, why must you, Xu Yang, also exist? Today, no matter what, I will make you pay the price.”

With a hysterical roar, Feng Xiu, at that moment, unleashed his true form, activating the fourth profound mystery of the Heaven-Defying Demonic Art: Ghost Divine Respiration! The next moment, a dense, oppressive black light totem materialized behind him.

Simply put, it wasn't a totem at all, but merely a colossal mass of black energy coalesced together, radiating suffocating terror and darkness. In the center of this gloom, two blood-red eyes slowly materialized. Chilling eyes, like those of a demon god from the Nine Nether Hells, quickly locked onto Xu Yang.

“An Asura's successor? Excellent. I'm curious to see what kind of power someone chosen by an Asura truly wields!”

These words emanated directly from the dark totem behind Feng Xiu, a sight that astonished Xu Yang.

“Oh, this totem actually possesses an autonomous life form!” As Xu Yang processed this, he also faintly sensed a mix of astonishment and danger.

It was well-known that such a manifestation typically implied only two possibilities: either the totem's power was merely using Feng Xiu's body as a puppet, or it represented a unique integration of origin essence, peculiar to this Heaven-Defying Demonic Cultivation method! In other words, after Feng Xiu devoured this mysterious demonic source, he perfected his Heaven-Defying Demonic Art, but it also meant he was, in a way, sharing his body with this entity.

The current Feng Xiu was no longer entirely the same as the former leader of the North Jin Sword Alliance. Even if this energy didn't fully possess his physical body or become its dominant force, it would undoubtedly influence Feng Xiu's judgment and continuously amplify the murderous intent in his heart, eventually leading him to the abyss of complete corruption.

Xu Yang let out a cold snort, put away the Eternal Divine Artifact, and simultaneously summoned his Asura's Sword, as a vast black light mist rapidly condensed behind him. However, unlike Feng Xiu, Xu Yang required no totem's power for augmentation. He himself might as well have been Asura incarnate; the black light simply coalesced around him, awaiting his command.

“Cultivating through external forces is too shortsighted and poses a fatal disaster for the cultivator. Feng Xiu, you ultimately chose the wrong path, and you are destined never to reach its culmination.”

After speaking, Xu Yang unleashed a cleaving sword strike—a world-shaking, earth-shattering killing blow of the Asura path. A terrifying black sword-light stretched for a hundred zhang, almost cleaving the entire sky horizontally in two. The terrifying and peerless sword energy completely locked onto Feng Xiu, and even the black-red totem behind him felt the unimaginable destructive might of this strike.

CRACK!

At that very instant, a rolling peal of thunder reverberated, exploding high in the sky! The terrifying might of the lightning seemed to further amplify the power of Xu Yang's sword strike. Wherever the sword blade passed, the void was filled with the silhouette of the Asura God, which remarkably coalesced in the void without dissipating!

Feng Xiu paled in astonishment. He truly hadn't expected Xu Yang's sword strike to achieve such a profound level. In the preceding moments, he had clearly sensed that even the void had become turbulent. This was almost the extreme power that could challenge the very limits of the continent's laws.

Indestructible Underworld King Body!