**The Great Yong Dynasty, Northern Frontier – The Abyssal Prison Dungeon.**
In the deepest cell, marked as "Celestial Cell Number One."
"...What the hell is going on?"
Ye Yunxiu's mind blanked as he took in the unfamiliar surroundings.
He distinctly remembered signing a major contract before heading home and drifting off to sleep in his plush bed.
Yet now, with just a blink, he found himself in this strange place...
His sharp eyes swept discreetly across the dim, damp enclosure—rusted iron bars, a single chained gate sealing the exit.
This was... a prison cell?
"Damn—!"
The moment he tried to move, searing pain exploded through his body.
Glancing down, he saw his own battered form—bruised, bloodied, not an inch of unbroken skin.
And his dantian—the moment he shifted slightly, a white-hot agony lanced through his core.
"...This pain is way too real. Unless I'm hallucinating, I must have... transmigrated."
Just then, a flood of foreign memories surged into his mind—
The original owner of this body was also named Ye Yunxiu, born to the Empress of the Great Yong Dynasty.
Blessed with extraordinary talent, he had achieved countless military victories at a young age, earning him the title of Crown Prince.
Yet such glory bred envy.
Some secretly colluded with the demonic tribes, paving their way straight to the imperial capital!
In desperation, the original owner led his troops back to the capital—only to be framed by a dying demon in his final moments.
As a result, the Emperor of Yong stripped him of his cultivation and threw him into prison.
A tragic fate indeed.
But now was not the time for reflection.
With his cultivation shattered and his dantian destroyed, his body was already on the brink of collapse.
If he didn’t act soon, death would claim him too.
*"Am I really just going to die here?"*
He refused to accept it.
Just then, a cold, mechanical voice suddenly echoed in his mind.
**[Ding. Host compatibility detected. System binding in progress…]**
*Ding! The Invincible Check-in System has successfully bound to its host!*
*System Function: Daily check-ins will grant rewards, with specific rewards randomly distributed based on the host's current location.*
Ye Yunxiu's cold, tense expression shifted instantly as the voice echoed in his mind. A sharp glint flashed in his eyes.
**Invincible Check-in System?**
Perhaps this system was the key to overcoming his dire predicament!
*Heaven hasn’t abandoned me after all!*
The pain from his wounds seemed to fade in an instant.
*[Detected host location: Deep-Sea Prison. Confirm check-in?]*
The system's voice rang out again.
Ye Yunxiu's eyes gleamed with anticipation. Without hesitation, he declared, **"Confirm check-in!"**
*[Congratulations, host! Check-in successful. Reward obtained: Divine Constitution—Primordial Yin-Yang Dao Body! This constitution rapidly refines the physical form, purifies meridians, and tempers bone marrow, granting the power of dual Yin-Yang forces!]*
**Divine Constitution?**
**Refining the body and purifying meridians?**
A blazing light ignited in Ye Yunxiu's gaze.
*Isn’t this exactly what I need right now?*
His body was covered in wounds, each one a testament to the brutal ordeal he had endured.
But now, with the power of the Primordial Yin-Yang Dao Body surging through him, death was no longer his fate. Instead, his very essence was being reforged—his meridians tempered, his marrow purified.
In the next instant, a radiant golden light erupted from Ye Yunxiu’s body. Twin forces—one black, one white—emanating an ancient and unfathomable aura, spiraled upward along the golden radiance, piercing through the heavens.
At the same time, his wounds began to heal at a visible pace. His shattered meridians and bones crackled like snapping kindling, the sound sharp and relentless. The excruciating pain forced a stifled groan from his lips.
Yet, in the next breath, his broken meridians and bones reconstructed themselves, stronger and more resilient than before.
Then—**BOOM!**
The opposing forces of Yin and Yang, surging through his veins, converged violently toward his dantian. The ruined core, once destroyed by his enemies, was now reborn, restored to perfection.
By this moment, Ye Yunxiu’s entire being—his meridians, his bones, his dantian—had undergone a transcendent metamorphosis, ascending to an unparalleled state.
What he didn’t yet realize was that his transformation had triggered a cataclysmic upheaval in the skies above the Abyssal Prison.
Black and white flames ignited the heavens, spreading like wildfire across the horizon. An overwhelming, primordial energy—vast and mysterious—rippled outward, shaking the very fabric of the world.
In no time at all, it engulfed the entire Great Yong Empire!
Especially within the black and white flames, there pulsed an overwhelming aura of ancient Daoist essence, sending shivers down the spines of every powerful cultivator across the land.
From the imperial court to the secluded masters of noble families and hidden sects—all opened their eyes in unison.
"This... this is an incredibly dense aura of primordial Daoist essence in the air..."
"This is no ordinary occurrence! Someone! Dispatch scouts immediately to trace the source of this energy!"
Meanwhile, within the imperial palace, the Yong Emperor stared at the celestial anomaly with undisguised shock.
"What in heaven's name is happening?"
Never in the thousand-year history of Great Yong had such a phenomenon occurred!
Since ancient times, anomalies in the heavens only manifested for two reasons—either the birth of a supreme powerhouse or the awakening of a divine treasure!
"Your Majesty, this anomaly... seems to originate from the northern borders of our empire..."
A white-haired elder standing beside the emperor gazed skyward as he spoke.
"This is no trivial matter. Send word! Investigate the northern frontier at once!"
With the emperor's command, several elite cultivators immediately set out.
Simultaneously, sects and noble clans from neighboring kingdoms also mobilized, all converging toward the northern border.
If this truly heralded the emergence of an artifact imbued with primordial Daoist essence, obtaining it would grant unrivaled supremacy over the realm.