Sky Prison signed in for 20 years, I am invincible in the world

After the death of the Lord of the Temple of Killing, Chu Xuan successfully found the world where the Temple of Killing was located by following the breath left by him.

It's just a pity that when he found this place, the world had completely collapsed.

As far as the eye can see, there is only a piece of wreckage left, with collapsed spaces and vortex storms raging everywhere.

"What a prodigal son, a good sixth-level world has been ruined so casually!"

Chu Xuan gritted his teeth and scolded with a depressed face.

Originally, I thought I would be able to gain a new level [-] world, but I didn't expect my expectations to be in vain.

He didn't need to think about it to know that this must have been done by the Lord of the Killing Temple.

Because with the stability and strength of the sixth-level world, it is difficult to destroy it even if the strong in the Immortal King Realm try their best. Only the quasi-immortal emperor who surpasses the Immortal King has such ability.

Of course, he didn't know that it was because the Lord of the Killing Temple sacrificed all the creatures in the whole world in order to break through, which caused the will of the heavens to backlash, which forced him to kill.

Regardless of the reason, the world will eventually be destroyed.

Chu Xuan shook his head helplessly, a ruined world was of little value to him.

He turned around and was about to leave, but at this moment, he suddenly seemed to remember something, and stopped again.

Then turned around and walked directly into the chaotic vortex storm.

The vortex storm generated by the collapse of a sixth-level world is naturally extremely terrifying, and it will last for countless years and is difficult to calm down.

But Chu Xuan turned a blind eye to this, only seeing the divine light shining all over his body, and wherever he passed, the chaotic whirlpool storms "give way" for him one after another.

After a while, Chu Xuan came to the most central position.

"System, sign in!"

[Ding, the sign-in is successful, congratulations to the host for obtaining the core of the world. 】

As the system prompt sounded, a mysterious crystal nucleus soon appeared in Chu Xuan's hand.

Although it is only the size of a fist, the energy it contains is incomparably astonishing.

And not only the energy contained in it is astonishing, but also the incomparably mysterious power of rules surges in it.

Back then when Chu Xuan destroyed the Sirius King's clone, he also obtained a world core.

It's just that the core of that world is nothing compared to the core of this world.

After all, this is the core of the world that gave birth to the sixth-level world, and its value is so precious that it is unique.

If it is used to refine an immortal artifact, it is almost [-]% able to refine an immortal king artifact.

However, refining the Immortal King Artifact is not in Chu Xuan's interest, because with his current cultivation strength, ordinary Immortal King Artifacts are of little use to him.

"The Taiji clock is only one step away from the quasi-immortal emperor's weapon. If the core of this world is refined into the Taiji clock, it may be able to make the Taiji clock make up for that slight defect, and smoothly advance to become a quasi-immortal emperor's weapon..."

Chu Xuan narrowed his eyes slightly, and an idea popped up in his mind instantly.

This is his real plan.

Although the Ancient Bronze Coffin and the Asura Blood Sea are good, they are not the kind of immortal artifacts specially used for fighting.

Occasionally using it unexpectedly may produce miraculous effects, but it cannot be used as a conventional weapon.

The Taiji Clock is different, as a defensive treasure, if it is promoted to be a quasi-immortal emperor weapon, it will be of great help to Chu Xuan.

"But there is no rush."

"Based on the art of refining that I have mastered so far, it is no problem to refine the Immortal King's Artifact, but the quasi-Imperial Emperor's Artifact is probably not as good."

"I need to prepare a little bit more and learn a few more artifice refining techniques to be more confident."

Thinking of this, Chu Xuan turned his hands away and put away the core of the world.

Although he failed to master a new level [-] world, getting a world core was a pleasant surprise.

Chu Xuan was in a good mood, and continued to sign in a few more times, but the harvest after that was not so good.

He didn't care too much, stopped, and then walked across the starry sky.

……

After returning to the world of Huangquan.

Chu Xuan just took a breath.

He didn't rest completely, and quickly resumed the work he hadn't finished before.

Although the fusion of the Taisu Immortal Physique has been completed, he has not refined the Heavenly Dao of the Underworld, the Bone World, the Illusory Demon World and many other worlds.

Chu Xuan ignored the disturbance from the outside world, and soon concentrated on refining the way of heaven in the underworld.

With the continuous improvement of cultivation and strength, the speed of refining the sixth-level world of heaven is also accelerating.

Even with the time for preparation, it only took a few days in total, and he had successfully grasped the way of heaven in the underworld world.

His cultivation base has also been further improved.

But unexpectedly, this time refining the sixth-level world of heaven, his cultivation has not broken through the realm.

Still staying at the 24th heaven of the Immortal King Realm, but reached the peak of the 24th Heaven of the Immortal King Realm.

"The further you get to the back, the more energy you need to upgrade, and the more difficult it will be to break through."

Regarding this point, Chu Xuan had already prepared in his heart.

But at this moment, he still couldn't help frowning.

"More importantly, the Kunwu galaxy doesn't have so many worlds and heavens for me to refine."

"It's okay to talk about the Immortal King Realm. Once I break through to the Quasi-Immortal Emperor, besides the seventh-level world of Kunwu World, how can there be other worlds for me to refine..."

Chu Xuan couldn't help but think of the White Demon galaxy where the Heaven Swallowing Demon King is located.

Although the art of refining the heavens and transforming the Tao can only simply improve his cultivation, it cannot help him break through the big realm.

But even so, this supreme fairy art still gave him a huge advantage that other people couldn't match.

But the problem is that there is a prerequisite for this fairy art, that is, the world must be refined, otherwise it is impossible to make him stronger out of thin air.

If he really gets to that point, the Kunwu Galaxy cannot make him continue to grow stronger, then it seems that he can only get his hands on other galaxies.

Of course, there is no need to worry about this yet.

After all, his own strength has not yet reached that step, and to fight across the galaxy, at least he has to wait for his realm to reach the quasi-immortal emperor.

After all, other galaxies may not be like the Kunwu galaxy, which doesn't even have a quasi-immortal emperor. Well, the dead Lord of the Killing Temple doesn't count...

Maybe there are not only quasi-immortal emperors, but even real immortal emperors.

Chu Xuan has never come into contact with a strong man of that level, nor can he imagine it.

In the face of such an existence, simply accumulating cultivation bases may not be effective.

"Come on step by step, let's refine the Heavenly Dao of the Bone World and the Illusory Demon World first."

"There are still nearly half of the sixth-level worlds in the Kunwu galaxy that have not been refined."

"Everything will be discussed after breaking through the Immortal Emperor Zhun."

Chu Xuan took a deep breath to suppress the many distracting thoughts in his mind.

Then he left the world of Huangquan very quickly.

Go straight to the world of bones.

After entering the world of bones, Chu Xuan was familiar with the road, first signed in, and then started to attack the heaven of the world of bones.

It didn't take long for him to successfully master the heavenly ways of the bone world and the phantom world.