209: Yin and Yang soared to the heavens, and the Heavenly Dao was enraged.

Li Ao's gaze was focused as he looked at Medusa.

Without needing words, Medusa understood.

She gently pushed her jade hand, and the block of solar essence gold —which she had initially refined, its light restrained and mellow like liquid sunlight —slowly flew towards the black platform.

Unlike the frenzy during the melting of the nine nether cold iron and the Fusion of the dragon emperors reverse scale, the arrival of the solar essence gold brought a strange "tranquility."

It resembled a miniature star, emitting warm, vast, and nourishing Yang harmony Qi.

Wherever it passed, even the pure white earth core fire marrow seemed to become slightly milder, and the restlessness on the platform caused by the dragon Soul and spatial power subsided considerably.

However, Li Ao knew well that beneath this calm lay an even greater danger.

Yin and Yang complement each other, but they also clash!

Integrating this ultimate Yang and rigid power into the blade blank —which already contained extreme Yin coldness (nine nether cold iron) and tyrannical Dragon might (dragon emperors reverse scale) —the resulting conflict would far surpass any previous step!

He took a deep breath, adjusting his state to its most perfect Peak.

His Soul power, like the most precise spider web, enveloped the solar essence gold and the pitch-black blade blank, where Dragon patterns were already faintly visible.

"Fuse!"

He gave a low shout, his hands gesturing.

The earth core fire marrow surged once more, wrapping the solar essence gold.

Simultaneously, he separated a wisp of extremely pure Nirvana Power, and like the most meticulous artisan, began carefully "stripping" the solar essence gold.

This time, it was not crude melting, but guidance.

He intended to separate the pure "Solar Fire Essence" and "Earth Core Fire Soul" from the solar essence gold, transforming them into the ultimate Yang Origin.

Then, using a specific method, like drawing the Yin and Yang fish, he would integrate them into the blade blank to form a balanced cycle with the extreme Yin Evil Qi of the nine nether cold iron, rather than a simple mixture.

The process appeared gentle, but was, in fact, incredibly perilous.

The moment the first wisp of golden-red Solar Fire Essence was guided out and touched the pitch-black blade blank —

"Boom!!!"

It was like cold water dripping into boiling oil, or the ultimate collision of positive and negative electrodes!

A terrifying energy storm, impossible to describe, violently erupted, centered on the blade blank!

Half of it was the ultimate, desolate stillness, seemingly capable of freezing time and space!

The other half was scorching, golden-red brilliance, seemingly capable of burning down the heavens!

Two completely opposite powers, whose attributes were diametrically opposed, clashed in a frenzied battle and mutual consumption inside the blade blank, like two enraged Primordial Vicious Beasts!

"Crack! Crack!"

The surface of the blade blank, which had just become incomparably tough due to the integration of the dragon emperors reverse scale, instantly became covered in fine cracks!

The violet-gold Dragon patterns flickered erratically under the impact of the dark and golden-red light, letting out painful wails!

The blade body trembled violently, seeming as if it would shatter completely the next moment!

"This is bad!"

Li Ao's expression changed drastically.

His Soul felt as if it had been struck by a heavy hammer; he groaned, and a trace of blood spilled from the corner of his mouth.

He frantically activated the nirvana star core, and vast, gray-gold Nirvana Power poured into the blade blank regardless of the cost, attempting to forcibly suppress and harmonize the runaway Yin and Yang storm.

However, this time, the Nirvana Power seemed somewhat inadequate!

That Yin and Yang storm was not merely an energy outburst; it contained the collision of fragments of the most fundamental Yin and Yang Laws of heaven and earth!

Its level was so high that it faintly touched upon the foundational rules of this plane of existence!

Although the nirvana star core was powerful, Li Ao's own control and understanding of it were far from reaching the Peak.

Facing a conflict that involved the underlying rules of the world, he seemed somewhat overwhelmed.

The cracks on the blade blank multiplied; destruction seemed imminent!

Just at this critical moment —

Another anomaly occurred!

It did not come from within the blade blank, but from... the outside world!

From this plane of existence!

"Buzz—!!!"

A will, whose vastness was indescribable and whose majesty was unfathomable, suddenly descended, as if awakening from above the Nine Heavens!

The entire subterranean cavern, no, the entire Hundred Thousand Volcanoes, and even a broader celestial region, all sounds vanished at this moment.

The wind stopped, the magma solidified, and even time seemed to cease flowing.

An unspeakable sense of oppression filled every inch of space, as if the entire sky had lowered itself, intending to crush everything beneath it into dust!

Outside the cavern, the originally crimson sky visibly darkened at a rapid pace.

Endless dark clouds gathered from all directions, rolling and surging.

Within them was not mere lightning, but countless fine, twisted, destructive gray bolts of lightning that were forming and roaring!

A supreme, cold, and ruthless Heavenly might, viewing all creation as straw dogs, crushed down like a tangible tsunami!

"This is... Heavenly Dao's wrath?!"

At the entrance of the cave, Medusa suddenly stood up, an unprecedentedly solemn expression appearing on her beautiful face.

Her purple eyes were filled with disbelief.

"Why would merely forging a weapon attract the Heavenly Dao's obstruction?!"

What she felt was not a Heavenly Tribulation aimed at a specific person, but one aimed at the "blade" currently being born!

It was this plane of existence forbidding the birth of such an "anomaly" that defied Yin and Yang and simultaneously contained the intent of Nirvana and creation!

Above the black platform, Li Ao also felt the boundless Heavenly might, and his face instantly turned pale.

But the light in his eyes burned to the extreme at that moment!

"Damn heavens! You want to stop me too?!"

He let out a roar toward the sky, filled with defiance and arrogance!

He understood.

He possessed the [blade ancestor system] and the [nirvana star core], and the path he walked was the Heaven-Defying "Way of Blade Silence."

Now, forging this life-bound divine weapon meant imprinting his own Dao and Law into it.

Its essence had already touched upon a certain taboo of this plane of existence!

The Heavenly Dao would not permit the birth of an entity that transcended its control!

This was not a Lightning Tribulation; this was Heavenly Punishment!

"Shasha, guard the entrance!

No matter what, no one can be allowed to disturb me!" Li Ao transmitted to Medusa, his voice resolute.

Medusa did not hesitate.

Seven-colored light shot into the sky, transforming into a massive seven-colored barrier spanning the cave entrance, pushing her Five-Star Dou Zun cultivation to the limit!

She knew that Li Ao absolutely could not be disturbed at this moment.

Li Ao withdrew his gaze, sinking all his attention back into the blade blank that was about to shatter.

External Heavenly Punishment was imminent, and internal Yin and Yang storms raged!

A true dead end!

But he could not retreat, nor was there any path left for retreat!

"System!"

He frantically called out in his mind to the long-dormant [blade ancestor system].

"I know you're still there! Help me!"

As if responding to his call, the previously dim blade soul light cluster, deep within his Soul, erupted with an unprecedentedly brilliant golden radiance!

A Blade Way Origin aura, far purer, older, and vaster than Li Ao's own, suddenly awoke, like a primordial Vicious Beast that had slept for countless ages!