There was fire in the ice, there was ice in the fire, and for a while, the spiritual power was constantly flowing in the meridians of the two of them, and the spiritual power seemed to be burning with clusters of crimson Nirvana true fire.

Almost the moment the Nirvana True Fire appeared, Ning Xu felt an infinite burning pain spreading out from the depths of his body, which was not the same as the fire that enveloped his body before.

Although the firelight was constantly refining and polishing his body, there was not much pain, and most of those pains were offset by the frost spiritual power of the night, and only the warmest part was left to nourish and refine the flesh after the most violent flame factors were digested.

But this is not the case with the flame spiritual power burning in the meridians, how sensitive is the meridians? Even if there is even a hint of heat, you will feel a kind of high heat that is almost close to the extreme.

The extreme heat continued to fill the meridians, and the extreme pain burned, and Ning Xu was in pain all over his body, and for a while, he couldn't help curling up into a ball of pain.

But although the flame was hot, it didn't bring much damage, between the flames, Ning Xu's meridians gradually became tougher, if it was just a piece of paper before, then now the thickness is about two pieces of paper.

The strength of the meridians means that it can withstand a stronger flow of spiritual power, can output a large amount of energy in an instant, and use them to burst out with powerful combat power, and can even shorten the charging time of certain combat skills.

This is only in terms of combat, after the meridians are strong, they can accommodate more powerful spiritual power flowing through the body, which means that when cultivating, absorbing the surrounding heaven and earth vitality and refining it will be faster.

Although after having the law aura, Ning Xu could even absorb the purest aura essence by relying on that law aura, but with his realm, it was impossible to cultivate with the help of the law aura for a long time, and only when he used Ning Lou's power that time could he be regarded as initially using the power of the law aura.

In the follow-up cultivation, although the law aura also played a very important role, the power exerted was not as high as before, not because the spiritual power was not enough or anything, the law aura was the embodiment of the law condensed by the cultivator's perception, and there was no need for spiritual power to push it.

The reason why he couldn't use the full power of the law aura was because Ning Xu couldn't withstand the slightest oppression brought by the law aura when it was fully activated.

In short, the physical body and meridians were not strong enough, but now that the meridians were strong, he would be able to further use the power of the Law Aura and refine the aura essence refined by Fa Aze's aura more quickly.

Even if the aura essence is refined, it also needs a process of absorption and refining, and the law aura, as the privilege of the marquis's power, absorbs the aura at an extremely terrifying speed, and under full opening, it can support a law system marquis to release a large number of powerful spells of destructive nature in the form of almost waste.

With this level of absorption speed, it is easy to directly blow up a small knight-level professional.

Although this kind of flame would not cause much harm to the human body, the long-term burning sensation was wearing down Ning Xu's reason little by little, and the pain was simply a severe pain that he couldn't bear.

But at that moment, a chill spread from the tips of his fingers, and over there, over there, where the night was.

That cold aura spread over, instantly covering every inch of Ning Xu's meridians, covering his meridians with a thin layer of frost, but it was this layer of frost that seemed to be completely melted away as long as it was burned by the flames, but it really protected Ning Xu's meridians.

But the pure flame spiritual power flowing in his body did not stop burning, the rich flame was still constantly burning the meridians covered with frost, the flame head of the flame licked the frost layer one by one, and under the action of the high temperature, even the frost began to melt little by little, becoming a drop of liquid full of vitality.

As soon as the liquid emerged, it was quickly absorbed by Ning Xu's meridians, and the vitality was plunged into the meridians, and the originally tight meridians gradually began to relax under the moisturization of the water droplets, and it seemed to become more elastic for a while.

The flames passed through the frost layer, filtering out the heat of the violent side and slowly wrapping around the meridians, making the meridians more tenacious and a little stronger.

Just between the two of them cultivating, no one noticed that the luster of the crimson rune on Ning Xu's palm was fading little by little, as if it was about to disappear completely from Ning Xu's body.

You must know that after this method is cultivated, those runes will always exist, even if they are condensed into yellow runes, it will only consume the energy contained in them, but the foundation is still there, as long as it is injected with spiritual power, it will reappear.

After such a urge, it will emerge and greatly enhance the physical fitness of the cultivator.

But looking at it now, it seems that Ning Xu and the cultivation of the dark night have consumed not only the energy in the rune, but also the root and foundation of this rune have been consumed little by little under the burning of this flame, as if it is used as firewood.

This is a bit terrifying, this means that Ning Xu needs to re-cultivate this martial art, but this is not a loss-making business, just consuming a rune that can be continuously cultivated, you can enhance the strength of your physical body, and refine the meridians, which is a good thing that many people can't think of?

Besides, re-cultivation, not cultivating from scratch, with the first experience, the law divine ring that can already exert more power is there, and it doesn't take too long to re-cultivate the second one.

If just one rune has such a miraculous effect, then the eight runes of the highest level of the Fire Rune Cloud Interceptor and the tens of thousands of runes of the Ten Thousand Runes of the Fire Cloud Body work together, then I am afraid that this technique has already reached a very terrifying level.

The flames burned his body, and the red rune was fading away at a speed visible to the naked eye, and after only a few breaths, the rune had completely disappeared.

The flames circulating in the meridians gradually subsided, and the ice wrapped around the meridians had been completely burned, and the water containing vitality inside had also been absorbed.

Ning Xu opened his eyes slightly, raised his hand to look, and couldn't help but sigh, this was his cultivation, when he cultivated like that before, how could he not feel the change in this rune?

It's just that refining the meridians is so fragrant that he can only leave that rune behind