Next, the liver was to be transformed. Following the structure of the Chaos Liver Crystal, Lu Yuan began altering his own liver. This time, he expended twenty thousand Heavenly Grade Spirit Stones and achieved success. Immediately after the transformation was complete, Lu Yuan noticed his Azure Saint Sword Dao had advanced another level, faintly acquiring a hue of civilization.

The function of the liver is detoxification, and the function of the Azure Saint Sword Dao is also detoxification. Since their effects overlapped, as the liver advanced, the Azure Saint Sword Dao advanced in tandem.

Beyond Saint came Civilization.

Lu Yuan’s current Azure Saint Sword Dao was indeed powerful.

But one must not forget that among the thirty Civilizations, there existed a Civilization of Poison.

And that Poison Civilization could actually unleash civilization-level toxins. If the Azure Saint Sword Dao had not reached the civilization level, it would likely be felled by such poisons.

Therefore, Lu Yuan’s Azure Saint Sword Dao absolutely needed improvement; for now, it only held the faintest trace of civilization-grade essence.

Moreover, Lu Yuan understood acutely that elevating the Azure Saint Sword Dao to the civilization level would be a challenge far beyond the ordinary.

He temporarily set aside the matter of the Azure Saint Sword Dao and continued his push toward the tenth level of the World Realm.

The Spleen!

Lu Yuan followed the composition of the Chaos Spleen Crystal, transforming his own spleen structure. The spleen’s role was blood production and filtration. Since all of Lu Yuan’s cultivation methods were unrelated to blood, he gained no direct benefit in this area, merely making the spleen more perfect. This process also consumed twenty thousand Heavenly Grade Spirit Stones.

Next were the Lungs. The lungs were for respiration. Lu Yuan spent twenty thousand Heavenly Grade Spirit Stones, gradually structuring his lungs to resemble the Chaos Lung Crystal, making them significantly stronger. Lu Yuan exhaled a breath; he felt that a casual exhale now possessed the power to shatter several mountain peaks.

Then came the Intestines. As he transformed his intestines into the semblance of the Chaos Intestine Crystal, Lu Yuan vaguely sensed that he was missing something, and the desire to grasp the concept of 'swallowing' grew increasingly intense. This transformation also cost twenty thousand Heavenly Grade Spirit Stones.

For the Kidneys, he shaped his own into the form of the Chaos Kidney Crystal. Lu Yuan discovered that his Seven Emotions suddenly surged, becoming momentarily uncontrollable.

Finally, the Feet: the Chaos Foot Crystal.

Lu Yuan modified his feet to resemble the Chaos Foot Crystal. This modification required thirty thousand Heavenly Grade Spirit Stones, nearly as much as the brain had used. The transformation of the feet was completed relatively quickly, yet after finishing the modification, he sensed something was subtly amiss.

Indeed, the structure of his two feet was undeniably perfect.

But, it seemed that in addition to perfection, something extra had been added.

Wasn't this gilding the lily?

No, that couldn't be right.

Why would one willingly gild the lily? The Chaos Civilization Beast ranked among the top five figures among the Lords of Civilization across myriad epochs, from ancient times until now. He shouldn't be prone to such pointless additions. Lu Yuan was utterly bewildered.

Suddenly, Lu Yuan slapped his forehead; he was truly foolish.

Hadn't he, when retrieving the Chaos Foot Crystal, damaged the sole of the Chaos Civilization Beast’s foot, causing a massive expulsion of wind? At that time, he had vaguely grasped the reason: perhaps because the Chaos Civilization Beast’s body was too immense, hindering its speed compared to other Lords of Civilization, he had employed a special method to alter the structure of his own feet, simultaneously incorporating creatures like the Wind-Sucking Shadowless Worms to boost his speed significantly.

The addition was probably not gilding the lily at all, but rather a structure designed to accelerate the speed of his feet.

Having settled this understanding, it just so happened that during his time in the Foot Abyss, he had indeed captured several deceased Wind-Sucking Shadowless Feet.

Lu Yuan, always a man of immediate action, immediately began refining the Wind-Sucking Shadowless Feet into the soles of his own.

As soon as they were integrated, he felt his speed increase markedly. Of course, this was purely a personal sensation; the true extent of the increase would require testing.

Move! In an instant, Lu Yuan moved, flashing hundreds of miles away in the blink of an eye. How fast! Truly fast! His current speed was at least thirty percent faster than before. This was a ten-percent increase, simply astonishing. His speed was already top-tier below the Civilization Realm, and this exaggerated surge instantly propelled him to the zenith level beneath the Civilization Realm.

This was the method of the Chaos Civilization Beast, truly befitting one of the top five Lords of Civilization.

At his current speed, even the Copper Saint Imperial Son, who was at the Half-Step Civilization Realm, would likely be unable to catch him.

Hmm, if speed could be enhanced in the feet, could it be enhanced in the hands as well?

Lu Yuan instantly modified his hands in the same manner, infusing them with the Wind-Sucking Shadowless Worms. However, hands and feet were different; he subtly altered some aspects during the modification. Success! Lu Yuan also felt his hands had become considerably faster. In a flash, he flicked his hand to draw his sword; the sword light streaked past like the shadow of a startled rainbow. Faster! Indeed, his draw speed had also increased significantly, by about twenty percent. Although less than the thirty percent increase in his feet, it was still remarkably impressive.

By merely altering his hands and feet, his combat prowess had been greatly amplified.

Moreover, having completed these tasks, he could execute the final step in conquering the World Realm: transforming the Heart.

The Heart, the locus of life, the foundation of existence.

Lu Yuan gazed at the Chaos Heart Crystal in his hand. Its internal structure was incomparably perfect, complete, showing not a single flaw or deficiency. Lu Yuan followed its blueprint to change his own heart, making its structure similar to the Chaos Heart Crystal. This time, the expenditure of Heavenly Grade Spirit Stones was substantial; he finally consumed a full fifty thousand Heavenly Grade Spirit Stones to complete it, even more than the thirty thousand used for the brain.

The total cost for this push to the tenth level of the World Realm amounted to a staggering two hundred and fifty thousand Heavenly Grade Spirit Stones. The advancement of the World Realm was proving harder and more expensive with every threshold crossed. Greater hurdles, the Civilization Realm, lay ahead.

Thump! Thump! Thump! Thump!

Lu Yuan felt his heart beating intensely, teng teng teng teng. As the heart pulsed, the other ten locations—feet, gallbladder, liver, spleen, etc.—followed the rhythm of the heart. All eleven areas beat in unison, and with each pulse, the intensity grew, spreading a sense of perfection throughout his entire body.

The initial perfection had been confined to those eleven spots, but it now extended everywhere.

Lu Yuan took a deep breath; this was the most critical moment—the breakthrough to the tenth level of the World Realm!

Breakthrough for me!

At this moment, his entire body seemed perfectly integrated—what profound perfection this was! Every single cell in his body was undergoing fierce transformation, shifting from the Divine Realm toward a higher life form. Finally, this transformation gradually reached its culmination, simultaneously triggering a cosmic anomaly. Above Lu Yuan’s head, the Song of Civilization appeared in the sky.

The Song of Civilization—this was the battle hymn of Civilization!

This song praised Civilization, chanted the greatness and perfection of Civilization, spreading its influence everywhere.

Living beings fundamentally resided within Civilization.

Civilization encompassed all things in heaven and earth, limitless and all-embracing.

The firmament shimmered with the musical score of Civilization.

Individual notes of Civilization danced across the sky.

Every single note was indescribably beautiful! Magnificent!

Lu Yuan was immersed in these dancing notes. Each note carried the essence of Civilization, and connected together, they formed a Civilization of unparalleled grandeur. Lu Yuan's entire being grew stronger and stronger under the praise of this music, constantly surging upward.

Bang!

The Song of Civilization reached its zenith, and as it pulsed, Lu Yuan realized he had attained another echelon.

The Great Perfection of the Tenth Level of the World Realm had been reached.

This was the apex of the World Realm. Individual life forms had achieved complete perfection here; nothing higher could be attained within this stage, faintly tinged with the essence of Civilization. Once one reached Civilization, they were no longer counted as individual life forms, but rather a life form worthy of infinite chant and praise. After reaching the tenth level of the World Realm, with his magical power vastly increased, Lu Yuan yearned even more deeply for the Dao of Civilization.

When could he finally attempt to break into the Civilization Realm? Standing at the peak of the World Realm, he felt the immense disparity; the gap between the World Realm and the Civilization Realm felt ridiculously vast. He felt that individuals he had met, like the Vice-Master of the Heavenly Principle Civilization and the Vice-Master of the Evil Sword Civilization, could still easily crush him with a single finger.

After intensely envying the Civilization Realm in his heart, Lu Yuan stood up. He wondered how things were progressing at Heart Mountain; he needed to rush there immediately. Lu Yuan soared into the heavens.

......

The Copper Saint Imperial Son had failed to catch Lu Yuan. Seeing the time, he figured it was about right; Heart Mountain held great benefits. Since he couldn't catch Lu Yuan, he stopped pursuing and returned directly to Heart Mountain. When he arrived, the clash between Tong Yun-Chou and Feng Xingxing had temporarily paused, with neither able to gain the upper hand.

Upon seeing the Copper Saint Imperial Son, Tong Yun-Chou immediately inquired, "Did you kill Lu Yuan?"

The Copper Saint Imperial Son shook his head. "Lu Yuan fled while injured. I pursued him, but unexpectedly encountered the Lung Bubble, and then I lost him. He was lucky this time, but if he appears before me again, I swear to send him to a place with no burial ground," the Copper Saint Imperial Son stated fiercely.

Tong Yun-Chou remained silent, but several people nearby spoke up.

"So Lu Yuan is just a coward who fled in battle." "Indeed, truly just a rat." Tong Yun-Chou finally spoke, "Forget it. Although Lu Yuan has immense potential, in this battle at Heart Mountain, he doesn't count as frontline combat power, only second-tier. He won't affect the overall situation. Let's settle this battle first, and only after winning will we plan how to deal with Lu Yuan."

In that very instant, everyone present heard a sound.