In a small cave that could only accommodate one person, Ji Yu sat cross-legged, his face full of tranquility.

A telepathic force appeared around him, which he had left behind to prevent accidents.

At this time, his cultivation was still a third-order warrior, but it was much stronger than before, because the Dantian battle body had vaguely reached a bottleneck again.

But now he was a little annoyed, Tian Lao fell into a deep sleep, and he didn't dare to let the Dantian battle body evolve without authorization.

Although it is said that the Dantian battle body is evolved by the demon core, originally he did want to use the demon core obtained in the previous battle to promote the evolution of the Dantian battle body, but when he was about to use it, he unexpectedly found that there was a tyrannical aura on these demon cores.

You must know that the magic core contains the origin power of the demon beast, and the legacy of the origin power on these demon cores is deeper than that of the demon beast in the beast spirit forest, if it is used without authorization, he has no certainty that there will be no accident.

Now that his Dantian battle body had reached a bottleneck, he could even feel that the muscles and organs in his body were about to begin to transform, rushing towards a more powerful direction.

The cultivation of the Dantian battle body is not the same as the battle qi, and the battle qi is divided into ten small levels at one level, but the Dantian battle body is only divided into four layers at one stage, the early stage, the middle stage, the late stage, and the Great Perfection, and the name of the stage is similar to the level of the battle qi, for the soldier, the teacher, the sky, the general, the king, the soul, the emperor, the saint, the emperor, and the god.

And the current Ji Yu is the early stage of the Shijie Dantian Battle Body.

But if it is really fought, with the cultivation of a third-order warrior and the strength of the early stage of the warrior-level Dantian battle body, Ji Yu can match the sixth-order monk of the warrior, this is the terrifying thing about the Dantian battle body, the power is superimposed, and the recovered energy will become stronger with the evolution of the Dantian battle body.

Ten demon cores surround Ji Yu, the number of demon cores needed for the evolution of the Dantian battle body is very large, if it is in the Forest of Beast Spirits, Ji Yu will indeed worry about the number of these demon cores, but here, he doesn't have to worry about these at all.

The purity of these ten demon cores is much purer than that of the demonic beasts of the Purple Sky Continent, even if it is a truly normal and advanced demonic beast, it is impossible to have the energy purity contained in these ten demon cores.

Therefore, Refinement could already make up for the gap in quantity, but now his only concern was whether these magic cores could be directly used by him.

Tian Lao has fallen into a deep sleep, he is now using these demon cores without authorization, God knows if there will be any problems, if there is a real problem, then he is really in trouble......

"Forget it, let's wait until the old man wakes up!"

Finally, he sighed, he is a very cautious person, in these aspects, he will definitely not mess around, if the blind pursuit of power leads to other problems, it will be a bit more than worth the loss.

Seeing the furious power of these demon cores, he was a little uneasy.

Picking up a magic core in his hand, when he was about to throw the magic core into the storage bag, his face changed instantly......

A strange light suddenly appeared on this magic core, and the magic core in his hand seemed to be greatly attracted, and began to struggle frantically in his hand, jumping up and down!

"What's going on!"

He was shocked in his heart, how could the demon core suddenly become so irritable?

The demon core beat more and more, and soon, his hand couldn't grasp it, and the demon core came out of his hand, floating in the air, and more than one, the other nine demon cores on the ground also floated......

What's going on!

Ji Yu's face had already become extremely ugly, and he could feel that each floating demon core had a different violent aura on its body, as if it could devour him at any time.

These were originally the magic cores of the ancient beasts, and he didn't know what problems would arise after using them, not to mention that now, he didn't use them at all, and these magic cores had already begun to move, which made him even more panicked.

A power of thought came out, but he didn't find any strange fluctuations, and there seemed to be no life consciousness on these demon cores, that ...... What the hell is going on!

And in the next moment, his face suddenly became extremely exciting......

The power of the mind sensed a strange power on each demon core, and he was also very familiar with this power, it was the power of the strange Dan core!

"Fuck it! It's that Dan Core again!"

Ji Yu is about to scold now, he found that every demon core has the power of that weird Dan core, and it is precisely because of the power of that Dan core that these demon cores have become so riotous.

What the hell is that Dan core?

He kept thinking in his heart, but at this time, in the whirlpool of battle qi in his body, the mutation happened again, and a deep groan faintly came out, almost making him stunned......

Then he saw the cores spin again, and they flew in his direction, flying straight above his head.

Ji Yu was shocked, but when he was about to flee, he unexpectedly found that his body couldn't move!

He was fixed in place, as if he was being pressed by a mountain, making it difficult for him to move!

"You're too weak! You can't withstand my strength!

A lukewarm voice came into his head, and he felt his head buzzing......

Oh my God, what the hell is that! Could it be that Dan is talking? He's going crazy, what the hell is going on!

That powerful force blessed his body, and he was immediately pressed and unable to move, and his body began to change greatly at this time.

"Bang! bang!"

Suddenly, the bones on his body began to crackle, and he was horrified, a little excited, and a little worried.

This is the precursor of the evolution of the Dantian battle body, the enhancement of the physique!

With the sound of these voices, Ji Yu also felt bursts of sharp pain spread throughout his body, and the kind of heart-piercing pain was almost like tearing him apart.

Although the Dantian Battle Body had evolved before, it was just the most ordinary evolution, just like advancing from an ordinary person to a monk, and this evolution was hundreds of times more painful than the last time!

He clenched his teeth to prevent himself from making a sound, and the beads of sweat on his head had already been left behind, and the sweat wet his back, and his face was full of pain.

Smack!

At this time, the muscles on his body began to grow at a speed visible to the naked eye, and in his body, the power crystal also began to rotate continuously, almost reaching the limit realm!

"Ah!!h

In the end, Ji Yu finally let out a loud roar, it was not a roar of pain, but strength!

The excitement brought to him by the strength, the battle qi in his whole body began to burn continuously at this time, and the initial evolution of the Dantian battle body had been completed, and it had reached the point of the middle stage of the rank at this time.

"Okay! The next step is the refining of the demon core!"

At this time, Ji Yu's eyes opened, revealing a glimmer of light, at this point, is he going to use these demon cores to consolidate his strength, and he must not let the power after the advancement disperse, otherwise the advancement will fail!

Under the guidance of the weird Dan core, these irascible demon cores began a series of movements, floating in mid-air, flying above his head, and finally, emitting bursts of dazzling light, began to merge into his dantian.

Ji Yu's eyes closed again, the power of his mind was completely retracted, and his attention was completely focused on the dantian.

Jiuding Danhuo is ready at any time, although he has no choice but to refine these demon cores, he is still extremely cautious, once there is any problem with these demon cores, he will use Jiuding Dan Fire to forge them.

As one of the Divine Fires, he believed that even the Demon Core of the Ancient Demonic Beasts, the Jiuding Danhuo would definitely have the power to completely refine it!

One after another, the violent power continued to merge into his dantian, and at this time, the battle qi vortex in Ji Yu's body actually began to emit golden light continuously, as if welcoming the entry of these demon cores.

What surprised him even more was that the power of these demon cores was still very obedient to that weird Dan core, constantly integrating into his body and into his origin.

Gradually, Ji Yu also felt the consolidation of his strength, and he felt that the strength of the mid-stage of the Rank Dantian Battle Body was constantly consolidating and becoming stronger.

At this moment, he could feel that his physical body was many times stronger than before, and all of this was because of the power of these demon cores.

His heart gradually let go, and these demon cores didn't seem to have any side effects, so Ji Yu began to refine with confidence.

One, two...... As the demon core continued to integrate into the dantian, the power of the dantian battle body became stronger and stronger, and it became more and more stable, and Ji Yu's breath became more and more stable and deep.

His expression had already changed from the initial pain to the current quiet, as if the progress was about to be completed at this point.

The last ray of light bloomed in this cave, and the last demon core was also announced to be refined at this time, completely integrated into his body......

"Crackle!"

Ji Yu's eyes gradually opened, he moved, and a crackling sound came from his body all of a sudden, and suddenly he felt that the bones in his body had become very crisp, but the difference was that the power contained in these crisps was endless in his senses.

"Whew!"

Taking a deep breath, Ji Yu completely put away his strength, refined the demon core, and the Dantian battle body evolved, and at the same time, his battle qi also had a chance to fully recover, and he had vaguely reached the fourth order of the warrior, and now it should be the bottleneck of the third order of the warrior.

Looking around, there was an inexplicable hint of excitement on his face, what he wanted to know most now was what kind of cultivation he was, how strong his strength was now, and what level of people he could fight against?

"Boom!"

In the cave, there was a loud noise, Ji Yu punched away, only to see that under the fist, there was already an extra fist mark, which had completely encompassed his fist and arm, and the power was very powerful.

"Now I ...... Even if you don't need to fight with the fighting spirit, you should be able to fight hand-to-hand with a real first-order demonic beast!"

Ji Yu muttered.

At this time, his battle intent was almost burned to the extreme, you must know that the real first-order demonic beasts were much more powerful than those garbage demonic beasts in the beast spirit forest!

He chuckled, and a mental force came out again, to probe his surroundings again, to find a way out.

However...... Just as the power of his mind came out, the smile full of spring breeze on his face suddenly dissipated, and was replaced by a cold sweat on his head!