However, Han Feng also knew that this move had drawbacks, the condensation time was too long, and the soul power consumed was too much, which might not be very practical in the ever-changing actual combat.

He thought silently for a while, and could only use the remaining time to continue to improve his efficiency and speed up his performance by a few points.

......

Half a year later, Han Feng successfully compressed the Black Fire Seal's Xeon Ellipsoid to two inches and five minutes, taking a step further, and the time it took was only nine breaths!

At this point, Han Feng could no longer advance by half a point.

He could only stop for a while, and took the time to practice the drawing of the nine-grade rune, becoming more and more proficient and efficient.

He painted in the air, and the nine-grade rune appeared in mid-air like flowing clouds and water, and it didn't take long for the rune light to diffuse, covering nearly a thousand zhang square.

Han Feng's mind moved, the rune light condensed in the sky, this nine-grade rune was completely completed, and it flew out with an uproar, and after two or three breaths, he went to the chaos barrier, and there was a bang, and the rune light poured out, pulling the monstrous aura, forming a blazing golden sea of fire, burning the area.

The chaotic barrier radiating a thousand feet radiated a brilliant and colorful light, resisting the golden flames transformed by the nine-rank runes, roaring with each other, and the violent sound was in the sky.

The power of the Nine-Rank Rune was indeed powerful, several times more powerful than the sea of fire that Han Feng had urged by condensing the aura of heaven and earth purely with his soul power, burning the chaos barrier from time to time with wisps of air, extinguishing these golden flames.

It didn't take long for the golden flames derived from the Nine Rank Runes to be extinguished by the chaotic air current, dissipating, and the entire heaven and earth were calm again.

Han Feng was not surprised, he knew very well that this Golden Flame Talisman would definitely not be able to break through the chaos, and its power was comparable to the Xuan Soul Sword he had condensed, the former could attack in a wide area, and the latter could specialize in a little bit, each with its own merits.

In the remaining months, Han Feng no longer cultivated, but sat cross-legged in the center of this mysterious little world, emptying himself and allowing his soul body to cultivate.

For so many years, he has been in a state of cultivation for a long time, in fact, he is extremely tired, but every time he is moistened by the special gas falling from the sky, making him excited, even in his sleep, he is not idle, it is simply not a life that people live.

Fortunately, after all the hard work, he finally succeeded in being promoted to the Crystal Transformation Realm, and he also successfully drew the Nine-Rank Rune, which is not an achievement that ordinary people can achieve.

He was satisfied, and he knew that he couldn't improve much in the last few months, so it was better to rest quietly, and save himself from having to find a place to recuperate and consolidate after he left here.

There is absolutely no such superior environment and conditions in the outside world, not only do you have no safety concerns, but you can also improve your ability to perceive.

At this moment, he completely emptied himself, his mind was as clear as a pool of water, all kinds of whimsical ideas were constantly emerging, and many of the problems and difficulties left over from his cultivation before had been solved one by one.

He figured it out, but he didn't immediately implement it, just because many problems were related to qi training and body refining, and he was only a soul body now, even if he wanted to solve it, he couldn't implement it.

He no longer thought about these things, so he continued to empty himself, feeling the changes in the depths of his soul, his mind became more and more active, and his soul body actually emitted colorful light on its own at this time, dazzling, and gradually spreading, covering hundreds of square feet.

In the sky, suddenly clouds and mist surged, and thousands of wisps of special gas poured out of the blue sky, surging down like a tide, blending with Han Feng's colorful soul light.

Han Feng felt unusually comfortable, and his deep-seated exhaustion quickly dissipated, slowly becoming calm, and he fell asleep unconsciously.

At this moment, he did not fall asleep, nor did he dream of anything, just simple sleep.

When he woke up, the moment he opened his eyes, the ground suddenly darkened in front of him, and he looked left and right, and it turned out that he had left that mysterious little world, and his soul returned to his body.

"Boom!"

There was a thunderclap, and another red lightning bolt slashed.

Only then did Han Feng react, it turned out that he was still in the red lightning area.

However, at this moment, he raised his hand unhurriedly, and the aura of heaven and earth rolled over, instantly condensing into a high mountain, blocking in front of this red lightning, with a muffled bang, intercepted it.

At the same time, he floated up and stood on top of this high mountain, taking advantage of the momentum to absorb the energy of this red lightning, causing his flesh to shine a little.

Being in a high position, it immediately attracted three red lightning attacks, rushing from the left, center and right, which caught people off guard.

But Han Feng was not anxious at all, his hands were divided, his eyebrows lit up slightly, and the soul power like essence gushed out, directly distorting the void, so that when the red lightning approached his body, he could not get close, circling around, and was quickly absorbed by his body.

He was so unhappy, with a slight wave of his right hand, the aura mountain under his feet suddenly dispersed, and he turned around and walked back, quickly leaving this red lightning area and returning to the orange lightning area.

As soon as he stepped in, he attracted several orange lightning bolts, but under the influence of the soul power of his crystallization realm, these orange lightning bolts hovered outside his body like rain, and were swallowed up one by one by his alchemy vajra technique, and the bones of his whole body were further raised, making a crackling sound, like stir-fried soybeans.

Han Feng did not immerse himself in this level of cultivation, but quickened his pace and hurried down.

He wanted to catch up with Lei Benyun, and took advantage of the other party's crippled hands to take the other party's life!

Although Han Feng had been cultivating in the mysterious small world for twenty-seven years, only a moment had passed in the outside world, and it took him a little time to devour the surrounding aura when the remnant talisman was repairing the twenty-seventh branch.

This amount of time is indeed enough for the old demon to escape, but he must not be able to escape far, especially since there is still the big hall below, even the old demon is not easy to re-enter. Even if he could get around it, it would take a lot more time.

What's more, Han Feng's strength has increased greatly now, and he will definitely be able to surpass the other party in terms of speed.

Han Feng unleashed his rolling soul power to carry himself, and one step was dozens of zhang, which was many times faster than running against the pressure around him.

At the same time, he also released his soul power, enveloping all directions.

With his soul power cultivation at the moment, he has been able to expand the coverage to hundreds of zhang, and the old demon invaded his soul sea before, leaving a little breath, and he can also find some clues through soul power extension, and sense the whereabouts of the other party from afar.

Although it was a little vague, it was enough for him to keep chasing.