"The Yellow Springs Emperor? Then you are Yama?" Cao Ya looked on, quite surprised.

During his escape, he actually encountered the Great Barrier of the Underworld?!

"Whoosh..." The thick barrier revealed a dim yellow color, containing the ancient laws of the Yellow Springs, and continued to spread, covering all directions and blocking the invasion of the strange phenomena of the laws.

This also shows how powerful the Yellow Springs Emperor was. Even after his body fell into the battlefield of immortal kings, he still had such abilities, which is simply astonishing!

"The Yellow Springs Emperor is the successor of the Reincarnation Daoist. He received the Reincarnation Daoist's teachings and is incredibly powerful."

"Unfortunately, when he ascended to the Heavenly Realm, he was targeted by the Heavenly Court and perished with resentment."

"After falling into the Immortal King Battlefield, his strength also increased. Now, he has long surpassed any Heavenly Lord of the Creation Heavenly Court! The Heavenly Mother, the Nine Heavens Mystic Maiden, and the Black and White Envoys are all far inferior to him."

"Back then, he was attacked by many Heavenly Lords, as well as the Thirty-Three Heavens' treasures and other divine artifacts and immortal artifacts, which led to his tragic end."

Cao Ya sighed. If the Yellow Springs Emperor, the Demon Emperor of the Xuanhuang Great World, had successfully ascended and continued to grow normally, he would most likely be a living, breathing Fourteenth or Fifteenth Era Heavenly Monarch by now!

Unlike now, I've become a zombie. What's the point of being strong now?

"Whoosh." The yellow dragon, flying atop the barrier, also saw Cao Ya outside.

He was filled with doubt and suspicion. Who was this person? To be able to venture alone into the Immortal King Battlefield, he must be the overlord of the Upper Realm!

But how did they recognize him? It's normal to recognize the Yellow Springs Emperor, after all, this Demon Emperor has a very famous reputation.

"Wait! You are..." Huang Long glanced at the Vermilion Bird Feather Robe and suddenly remembered something.

"The Vermilion Bird Heavenly Lord?!"

Cao Ya nodded and smiled, "You recognize me?"

The yellow dragon seemed relieved and replied with a smile, "I have never seen you, Emperor of the Yellow Springs, nor have I ever dealt with you, but the messages left behind by the Reincarnation Daoist contained a lot of information about the Heavenly Lords, one of whom was you. —Of course, the Reincarnation Daoist also did not expect that you, Heavenly Lord Vermilion Bird, would be so powerful!"

Huang Long marveled. His name was Yan, and he was the spirit of the magical artifact crafted by the Yellow Springs Emperor. Naturally, he knew many secrets. Later, he followed Fang Han and experienced a great deal in the Three Thousand Great Worlds.

However, during her ascension, she was separated from Fang Han and ended up on the Immortal King Battlefield.

With his strength at the time, if the corpse of the Yellow Spring Emperor hadn't appeared and rescued him, protecting him within the Yellow Spring Great Barrier, the Yellow Dragon would have been dead long ago and turned into a zombie, allowing his magical power to surge infinitely! But he has already perished, so none of this is of any use now.

Now, not only is he alive, but he has also made great strides and reached the level of ten eras.

If you go to the Epoch Gate, you'll find yourself among the top figures.

"The Yellow Springs Emperor still possesses certain instincts, making him unique among the many evil spirits in the Immortal King Battlefield," Cao Ya praised.

It should be noted that other evil spirits, even if their own children are in front of them, will not be affected in the slightest; their emotions will be dead, and they can still ruthlessly kill!

However, the remains of the Yellow Springs Emperor not only protected Yan, but also helped this alternative life form, who was like his own child, to improve his cultivation and become stronger rapidly.

The existence of that Great Barrier of the Underworld is something other zombies wouldn't do.

Even some zombies, whose strength is no less than that of the Yellow Spring Emperor, do not have this almost instinctive action.

"The Yellow Springs Emperor possesses the inheritance of the Reincarnation Daoist, so he is naturally extraordinary," Yan said proudly.

Upon hearing this, Cao Ya nodded in agreement. That Reincarnation Daoist was the junior brother of the Primordial Daoist. He had mastered the Dao of Reincarnation, but he was quite peculiar. Under special circumstances, he still possessed a certain tendency, which, it must be said, was somewhat possible.

"The Path of Reincarnation!" Cao Ya's heart stirred. He, the [Supreme One in a Lifetime], had already changed his path and focused on this path. However, almost none of the Cao Yas in the system space had ever touched this law. Now that he had the opportunity to obtain the method of reincarnation, he wanted to give it a try.

Just as Cao Ya was pondering how to propose a deal, Yan spoke first:

“A few days ago, another enemy came to attack the Yellow Springs Great Barrier, but was repelled by the Great Emperor.”

"I also heard from them about the situation outside. Fang Han has become the Epoch Heavenly Lord and established the Epoch Gate. People like Fang Qingxue, Linglong Immortal Venerable, and Nebula Baby have all joined. Even Chaos Heavenly Lord, Feng Baiyu Sect Leader, the Three Ancestors of the Witchcraft Path, Night Emperor Heavenly Lord, and Vermilion Bird Heavenly Lord are all great supernatural beings in the Epoch Gate camp."

"Moreover, there are indeed some familiar spells on you."

Cao Ya changed his mind, laughed, and activated the "Minor Destiny Technique" and the "Primordial Heavenly Dao." The aura of destiny and primordial chaos was extremely strong and could not be faked.

"As expected..." Yan's eyes lit up, and the yellow dragon he had transformed into stood upright and cupped his hands in greeting.

Who outside the Epoch Sect could obtain the techniques of the Primordial Daoist?

Not to mention the "Minor Destiny Technique," as far as Yan knows, only Fang Qingxue and Fang Han have mastered it. Even if others have been taught it, they are still unable to get the hang of it.

The Vermilion Bird Heavenly Lord was the third person he knew to have come into contact with the Great Dao of Destiny.

With intelligence and reality combined, how could Yan not have full trust?

"The enemies you mentioned that came to attack the Yellow Springs Great Barrier, are they the Barbarian Ancestor and his group?" Cao Ya asked.

Yan shook his head and said, "No! It's Taihuangtian and the others who also ascended from the Xuanhuang Great World."

Cao Ya suddenly realized that he had almost forgotten that there were Taihuangtian and his group of Immortal King pawns in the Immortal King Battlefield.

Taihuangtian, an elder of the Taiyi Sect in the Xuanhuang Great World, was originally a disciple of the Calamity Heavenly Lord. However, they caught the eye of the Immortal King, who directly influenced them during their ascension, causing them to arrive at the Immortal King's battlefield.

With the protection of the Celestial King, the ordinary immortals like Taihuangtian did not die here.

On the contrary, he obtained various opportunities, and his cultivation level increased rapidly. Now, he is a Heavenly Lord who has lived for more than ten eras.

Even the Heavenly Lord of Calamities, who was the patriarch, had to admit his inferiority.

With the will of the Celestial King, the people of Taihuangtian, even if they were on the battlefield of the Celestial King, would have a thorough understanding of the outside world and would not be surprised if they could learn about information such as the Epoch Gate.

"It can be said that the Yellow Springs Emperor has been of great help to Fang Han's cultivation journey."

"This is a matter of cause and effect! If the corpse of the Yellow Springs Emperor falls into the control of the Supreme Emperor Heaven... it would be a disgrace for the Yellow Springs Emperor!"

Yan's expression was grave. No matter the perspective, he would not stand idly by and watch Taihuangtian's group succeed in their wishful thinking.

Unfortunately, Taihuangtian and the others were all abnormally strong. Although Yan had lived for ten eras, he could not defeat any of them in a one-on-one fight.

Only with the help of the Yellow Springs Emperor could they be driven back and killed.

"Yes, the Celestial King Battlefield has a considerable number of wandering Celestial Lord evil spirits."

"Besides the Yellow Springs Emperor, there are also Immortal Venerable Panwu and the Three Sovereigns of the Xuanhuang Great World."

Cao Ya recalled that these zombies were all targets of Taihuangtian's group.

"Hmph, they won't succeed." Yan sneered and said, "Panwu Immortal Venerable once received the power of the Origin Daoist and came to the Immortal King Battlefield after his death. His strength must be at the level of fourteen or fifteen epochs."

"The Three Sovereigns were disciples of the Hongmeng Daoist. Even though they perished and became zombies, they were not weak."

"Those people who dare to blaspheme will suffer the consequences."

Cao Ya thought for a moment and said, "With the support, guidance, and protection of the Celestial King, the Three Emperors and Immortal Venerable Panwu are likely to fall."

"Even the Great Barrier of the Underworld is dangerous."

Thinking of the existence of the Celestial King, Yan's expression changed.

Even with unwavering faith in the Yellow Springs Emperor, one cannot withstand the intervention of a Celestial King.

"If the other Immortal Kings are personally involved, Hongmeng Daoist shouldn't stand idly by."

Yan hesitated before speaking, saying that the Three Sovereigns, the Reincarnation Daoist, the Yellow Springs Emperor, and the Panwu Immortal Venerable were all connected to the Hongmeng Daoist. However, upon closer analysis, after the Hongmeng Daoist disappeared, these Heavenly Lords all perished one after another. Behind them were the shadows of several Immortal Kings, including the Creation Immortal King and the Primordial Saint King. No matter how strong the Hongmeng Daoist was, he could not fight against so many opponents.

"There's no need to worry too much. Fang Han is still in the Upper Realm. Once he's confident enough to venture into the Immortal King Battlefield, he should be able to resolve these issues," Cao Ya said with a smile.

In the original timeline, Fang Han was able to defeat all his formidable enemies. Now, with even more excellent techniques and significantly stronger than his peers, Fang Han has an even greater chance of achieving victory.

Yan trusted Fang Han, and although he didn't understand cause and effect like Cao Ya, he still agreed.

Immediately afterwards, Cao Ya made a request for the Trading Divine Power.

Yan laughed and said, "I thought it was nothing! Even if the Vermilion Bird Heavenly Lord hadn't mentioned it, I would have said it anyway. Besides, I'm the one who received preferential treatment, so I was a little embarrassed to bring it up before."

As far as he knew, the Vermilion Bird Heavenly Lord had obtained the inheritance of an ancient immortal king by chance, which enabled him to rise to such a powerful position.

In comparison, the methods of the Yellow Springs Emperor and the Reincarnation Daoist are really not top-notch.

"That's great." Cao Ya immediately exchanged many techniques with Yan.

He brought out the Reincarnation Method of the Supreme Being, the Great Sun Tathagata Fist of the Sacred Ruins, obtained the secret techniques of the Yellow Spring Emperor, and the supernatural powers of the Reincarnation Daoist.

Both the man and the dragon were very satisfied.

Cao Ya then entered the Yellow Springs Great Barrier and cultivated there for a period of time. He made progress and finally broke through the threshold of the thirteenth era.

At this point, his overall strength increased again, slightly surpassing that of the Sixteenth Era.

So Cao Ya took his leave and departed from the Yellow Springs Great Barrier.

Yan watched Cao Ya leave, a look of envy appearing in his eyes.

To be able to come and go freely in the perilous battlefield of the Immortal Kings—what kind of skill is that?

"I wonder when Fang Han and the others will arrive here?" Yan murmured, sealing off the Yellow Spring Great Barrier and focusing on his cultivation, seeking a breakthrough.

"Whoosh." Cao Ya darted through the strange phenomena of laws, his body enveloped in nine-colored light, completely unharmed.

His cultivation level has advanced and his combat power has broken through. If he encounters the Barbarian Ancestor again, he will have to find an opportunity to capture that person and kill him directly!

Of course, Cao Ya would not be arrogant because of this; he was still far from being a Celestial King who could truly dominate this place.

Even a Heavenly Lord who has reigned for eighteen or nineteen epochs can barely survive under the command of an ordinary Celestial King.

He only has the combat power of sixteen or seventeen epochs, and none of the Immortal Kings imprisoned within the Gate of Immortality are weak! They are all at least twenty-three or twenty-five epochs old!

The most powerful among them are close to or even surpass thirty eras!

Moreover, to attain immortality, one must reach the advanced level of the Seven Stars.

He's only at the peak of the sixth star level. He hasn't even achieved the initial seventh star level of the Immortal King or the intermediate seventh star level of the Supreme Shattered Realm. How dare he be so arrogant? Even if he does achieve them, he still needs to be humble. After all, in the vast universe, there are actually quite a few beings at the high level of the seventh star level, and there are even traces of those at the peak of the seventh star level or even the eighth star level.

For example, the sacrificial path in the [Sacred Ruins] universe, and the Dao Fruit realm in the [Supreme Being of the World] universe.

Therefore, as a practitioner, one can have pride, but one must never become arrogant. Otherwise, if one becomes conceited and looks down on everyone, one is very likely to suffer disaster and encounter serious problems.

Cao Ya continued to explore the Immortal King's Battlefield and reaped great rewards, obtaining divine items from some zombies.

The cultivation of the Dao over thirteen eras has also progressed rapidly, not only consolidating but also beginning to approach the threshold of the fourteenth era.

Just as Cao Ya was about to take the risk, his heart suddenly skipped a beat.

Cao Ya immediately realized something was wrong. Under the glow of the sunset, he used all the features of the character "Martial", the artifact of creation, and the Vermilion Bird Feather Robe to enhance his physical body.

He sped off like a glimmer of light.

However, an unexpected event occurred, stopping Cao Ya.

"Boom!" Several figures unleashed supreme demonic power. After Cao Ya suddenly moved, clearly exposing his figure, they made no attempt to hide and joined forces to attack Cao Ya.

Cao Ya had no choice but to fight back, his nine-colored rays of light swirling around him as he resisted the demonic figures.

Yet a profound and incomparably majestic demonic intent, vaster than heaven and earth, almost shook Cao Ya's mind.

He quickly activated the "Smile with a Flower" technique, and only after the Buddhist chanting rang out did he stabilize his Daoist mind.

Cao Ya was extremely wary. He looked into the distance and said, slowly and deliberately, "Primordial Demon Lord!"

Who else besides the Primordial Demon Lord possesses such profound demonic essence?

Although the Primordial Demon Lord had been besieged by the Celestial Kings of the Heavens for being too domineering before the Heavenly Lord of Lightning brought out the spirit of the Gate of Immortality, and his physical body perished, his spirit endured. He broke free of the encirclement, arrived at the battlefield of the Celestial Kings, and forcibly rushed into the Gate of Immortality, where he remains to this day.

However, for the Primordial Demon Lord, transmitting even the slightest thought was not difficult.

There are so many zombies on the Immortal King's battlefield that it would be difficult for a Heavenly Lord to subdue them, but it would be much easier for an Immortal King.

This is just a thought. If the true form of the king were to descend, no matter what kind of evil spirit you are, if you dare to approach, you will be directly destroyed by the aura of the immortal king!

Those demonic figures were clearly the remains of the Heavenly Lord manipulated by the Primordial Demon Lord.

"Haha, Suzaku, your eyesight is not bad, you can recognize me."

A magnificent voice resounded, as if countless demons were roaring and billions of immortals and Buddhas were wailing, revealing the terror of the Primordial Demon Lord.

At his peak, he was a being who surpassed even the Immortal King, reaching the unparalleled Shattered Realm!

It's hard to say whether there were beings like the Primordial Demon Lord in the past eras. People like the Nine-Nine Supreme Immortal King may have reached the Supreme Shattered Realm, or they may have fallen short, hovering on the edge, just like the Primordial Daoist.

However, there was another clearly defined supreme shattering in later generations, and that was the Creation Immortal King!

Even after the Primordial Demon Lord lost his physical body, he was overtaken by the Creation Immortal King.

Regardless of anything else, the Primordial Demon Lord's power ranks among the top in the three thousand eras!

The vast majority of Celestial Kings would have to admit defeat before Yuanshi.

Even though he passed through the Gate of Immortality, what he emitted was merely a trace of will, insignificant compared to his true form, but in the eyes of the Heavenly Lord, it was already immeasurably powerful.