163: The boundary between reality and illusion, yin and yang, is revealed.

Outside the mountain gate of the Gu Clan.

The crowd of onlookers had cleared a hundred-meter-wide open space to serve as a temporary battlefield.

Cao Bu stood with his hands behind his back, his tone indifferent: "Little Friend Mo, make your move."

Mo Lei stood ten meters away from him, quietly glancing at Mu Zining in the crowd.

Mu Zining nodded almost imperceptibly, and Mo Lei's heart immediately settled. He gripped the Sacred Artifact, the Wind-Thunder Staff, in his hand and said in a deep voice, "Three moves, as you said."

Before his words had even faded, his figure moved, charging fiercely toward Cao Bu with the momentum of wind and thunder.

Facing the charging Mo Lei, Cao Bu stood still, not moving an inch.

"Arrogant!"

Seeing this, a trace of ruthlessness flashed in Mo Lei's eyes. The Wind-Thunder Staff, carrying immense force, smashed directly down toward the top of Cao Bu's head.

The crowd of onlookers immediately erupted into a commotion, with discussions breaking out one after another:

"What's going on? Why isn't Vice Clan Leader Cao moving? Could he be scared witless?"

"I don't think so. He's so calm and composed, he must have a trump card hidden away."

"Look at his skin; it seems different from an ordinary person's. Maybe he's a Body Cultivator!"

Just as everyone was discussing heatedly, the Wind-Thunder Staff had already approached the top of Cao Bu's head.

Cao Bu hadn't looked up from beginning to end, as if he couldn't sense the fatal danger.

Seeing that Cao Bu didn't dodge or evade, a hint of hesitation arose in Mo Lei's heart, and he subconsciously wanted to pull back.

But just then, Jiu Ling'er's anxious cry came from not far away: "Cao Bu, get out of the way!"

Hearing this, Mo Lei was filled with rage and no longer hesitated, smashing the Wind-Thunder Staff down hard!

*Bang!*

With a loud bang, the ground cracked violently, and the originally flat hundred-meter open space collapsed instantly.

This was only because Mo Lei had deliberately controlled the range of the impact; otherwise, it wouldn't have been impossible for ten thousand miles around to collapse.

Everyone subconsciously took a step back as dust filled the area, obscuring their vision.

But some of the experts present had already seen the scene within the dust, and their pupils all constricted:

"This... how is this possible?"

"He's actually completely unharmed!"

"It's too inconceivable. What kind of method is this?"

Hearing the experts' exclamations, the weaker onlookers craned their necks, looking curiously into the field.

The dust gradually cleared, and a scene that everyone would remember for the rest of their lives came into view.

Cao Bu was still standing steadily in his original spot, while that Sacred Artifact, the Wind-Thunder Staff, lay quietly by his feet.

Mo Lei lowered his head, his pupils trembling violently, his face filled with disbelief.

He had clearly seen just now that his strike at eighty percent of his strength had actually passed right through the moment it touched Cao Bu.

Cao Bu looked down at him indifferently, his tone flat: "Two more moves."

Mo Lei slowly straightened up, staring fixedly at Cao Bu, as the discussions of the experts reached his ears:

"This method seems like some kind of Divine Ability."

"Such a terrifying Divine Ability doesn't seem to be recorded on the Divine Ability Ranking."

"Perhaps it's a unique technique he comprehended himself."

Mo Lei's heart stirred, and his gaze toward Cao Bu became more searching.

Cao Bu nodded slightly, his tone carrying a hint of faint pride: "Not just anyone is qualified to exchange blows with This Clan Head. Do you still wish to continue?"

What he had used was precisely the Virtual-Real Yin-Yang Boundary.

Within this exclusive space he had constructed, as long as the opponent's strength hadn't reached the World Venerable Realm, any attack could not cause him the slightest damage.

This was true invincibility within the same Realm!

"Come! Why wouldn't I!" Mo Lei's confidence was not only unshaken, but instead, a strong excitement ignited within him: "I only used eighty percent of my strength just now. Next, it's ninety percent!"

He flickered and retreated ten meters away, setting his stance once more.

The corner of Cao Bu's mouth curled slightly, and he signaled with his eyes that he could make his move.

Mo Lei took a deep breath, the Spiritual Qi around him surging wildly. Lightning on the Wind-Thunder Staff flared up, making crackling sounds.

The ground beneath his feet cracked inch by inch at a visible speed, clearly showing he had raised his strength to ninety percent.

"Thunder Moving the Nine Heavens!"

With a loud shout, Mo Lei turned into a bolt of black lightning, carrying overwhelming power as he smashed toward Cao Bu again.

The power of this strike was more than several times stronger than before.

Everywhere it passed, space itself twisted and deformed.

The surrounding crowd all showed expressions of horror: "As expected of one of the top ten on the previous Prodigy Ranking, the power of this move is already comparable to a full-strength strike from a Realm Emperor Third Level!"

Just when everyone thought Cao Bu would finally make a move, he remained as upright as a pine tree, standing in place without moving a fraction.

In the next moment, the Wind-Thunder Staff smashed down diagonally from Cao Bu's shoulder, but the instant it touched his body, it once again passed through like a phantom.

The earth roared again, and the collapsed pit deepened by a few more notches.

Meanwhile, Cao Bu's robes fluttered, yet he remained perfectly still.

"This is impossible!"

Mo Lei retreated several steps in succession, a deep sense of powerlessness welling up in his heart.

This kind of Divine Ability was simply Heaven-Defying to the extreme!

Cao Bu lightly flicked away non-existent dust from his sleeve and said indifferently, "Virtual and real by the heart, impervious to all methods. There is one last move."

Mo Lei stared intently at Cao Bu, trying to find a flaw in this Divine Ability.

All things in the world have weaknesses; he didn't believe Cao Bu's Divine Ability could truly be invincible.

Little did he know that the only weakness of the Virtual-Real Yin-Yang Boundary...

...was that if the opponent's attack power exceeded Cao Bu's own cultivation by a full major Realm, this Divine Ability would become useless.

If it didn't, then I'm sorry, but Cao Bu was the god within this Realm.

Mu Zining, watching from afar, frowned slightly and sent a secret transmission to Mo Lei: "Lei'er, this Divine Ability is extremely strange. For the final strike, you must go all out!"

Mo Lei gritted his teeth and nodded, retreating ten meters away once again.

He thrust the Wind-Thunder Staff into the ground and quickly formed hand seals. The Spiritual Qi of heaven and earth converged wildly toward him, the Law of Thunder around him vibrated violently, and a surging sea of thunder gradually condensed behind him.

"Wind-Thunder True Body, Heaven Shaker!"

With his roar, the sea of thunder behind him instantly transformed into a ferocious Thunder Dragon, roaring as it dove toward Cao Bu.

Everywhere it passed, space shook more and more violently, as if it would collapse at any moment.

In an instant, the Thunder Dragon had already swallowed Cao Bu's figure.

*Boom!*

The ground collapsed violently again, forming a bottomless black hole ten meters wide and ten thousand feet deep.

Cao Bu stood in the air, his robes undamaged.

The three moves had passed, and the crowd of onlookers fell into a deathly silence.

Jiu Ling'er's cheeks flushed red. She had been worried sick about Cao Bu just now, but now she realized her concern was entirely redundant.

Cao Bu's defense had already reached an outrageous level.

Next, it would depend on how Cao Bu's attack power was.

Even if he couldn't win, at least he wouldn't lose.

Cao Bu stood with his hands behind his back and said indifferently, "Now, it's my turn."

Before his voice had even faded, he lightly tapped his foot, and his figure instantly appeared beside Mo Lei.

Mo Lei's pupils shrank, and he subconsciously snatched up the Wind-Thunder Staff to smash it toward Cao Bu.

Seeing this, Cao Bu didn't even circulate the slightest bit of Spiritual Qi or Law; he simply raised his hand and made a casual grip.

Mo Lei snorted and roared: "You will pay for your arrogance..."