On the other hand, in the other passage of the cave, Cao Zijian and Liu Gongjin were extremely cautious people, they were not as radical as Long Shisan and Zhao Guoshi, so the training on the first day did not go deep into this cave, but controlled it within a range of about five thousand meters.

With their strength, the poisonous gas at a distance of five thousand meters would certainly not cause their bodies to be damaged, even if they stayed for a day and a night, as long as there was enough food to replenish their energy, their bodies would not be in any serious trouble.

Of course, the poisonous gas at a distance of five thousand meters is not heavy, so the richness of the true qi is naturally not high, but it is enough for the current Cao Zijian and Liu Gongjin, they both understand the truth that it is impossible for people to become fat in one go, so instead of investing in high-intensity training at the beginning to make themselves injured and unable to train, it is better to go step by step, anyway, if you fight with the Night Emperor, you have long been prepared to fight a protracted war.

Liu Gongjin stretched out his hands, sensed the true qi flowing around him, and then said to Cao Zijian: "I always feel that these outflow of true qi are different from the true qi generated by ourselves in our bodies. ”

The well-informed Cao Zijian explained: "This is not pure true qi, have you ever heard of the concept of aura?"

"When he was in the Divine King Palace, Xia Yongyan used aura as the main combat method, I remember that it was an invisible attack, although the killing power is not as good as the true qi, but the power is not small. Liu Gongjin replied.

Xia Yongyan is also one of the users of the "Spirit Transformation Spell", and Liu Gongjin has worked with him before, so he still has a certain concept of this aspect.

Cao Zijian asked with a smile: "Then in your opinion, what is the difference between true qi, spiritual qi and demon qi?"

Liu Gongjin replied: "In my opinion, there is still a big difference between these three combat methods, the aura is biased towards concealment, the true qi is biased towards defense, and the demonic qi is biased towards attack. ”

Cao Zijian nodded and said: "Your summary is very good, these three combat methods do have such a difference, and what exists around us now is one of the aura." ”

"But I remember that if you want to absorb the spiritual energy, you must learn how to use the "spirit mantra", and there must be something like spiritual veins in the body as support, neither of us can "turn the spirit spell", and there is no spiritual vein in the body, that is, these gases cannot provide us with other value except for being harmful to our body. Liu Gongjin expressed his opinion.

If it is really as Cao Zijian said, what exists around here is aura, then for them who have been fighting with true qi, they will not be able to provide any help at all.

Cao Zijian shook his head and said: "As I said just now, this is not a simple aura, but one of the aura, that is to say, this is a gas mixed with three power systems, although I don't know why this cave can produce three gases at the same time, true qi, aura and demon qi, but there is no doubt that this is an excellent place to cultivate, because it is suitable for anyone." ”

This Cao Zijian is really well-informed, Liu Gongjin asked shamelessly: "Then what should we do, according to the words of the thirteenth, use actual combat to improve our strength?"

Cao Zijian rolled his eyes and said: "That's the barbarian's approach, suitable for the two battle maniacs like Long Thirteen and Zhao Guoshi, who are stronger and stronger, but it doesn't apply to us, I have a better way." ”

Speaking of this, Cao Zijian sat cross-legged, Liu Gongjin stood and looked at him and said, "Isn't it, your so-called better way is the most basic meditation?"

Every martial artist who enters the martial arts, meditation is the most basic cultivation method for them, meditation can enter the concentration, can mobilize the true qi in the body to make it active, after accumulating over time, you can break through the level, of course, this cultivation method is extremely slow, so most of the martial artists who enter the ground level, will choose more intense training.

Cao Zijian closed his eyes and said: "Meditation here is different from meditation outside, the concentration of gas here is at least twenty times that of the outside, so the speed of accumulation over time is also equivalent to an increase of twenty times, which is much higher than the experience accumulated in actual combat, this is the most correct way to cultivate." ”

"I admit that the gas here is very dense, but as you said before, with poison gas, this is a special gas mixed together with four gases, how can we eliminate other impurities and only absorb the gases that are useful to us?" Liu Gongjin wondered.

Cao Zijian said calmly: "This is the reason why I am in a group with you, compared to Zhao Guoshi and Long Thirteen, I am better at meditation, so I will take you into meditation, and then teach you how to remove other impurities step by step, you have the kung fu to talk nonsense there, it is better to sit down immediately." ”

Hearing Cao Zijian say this, Liu Gongjin sat down, and then straddled the wooden sword between his knees.

Cao Zijian silently recited the mantra and said: "Dange rises, rises with the wind, Wolong is low, enter my array, I am the direction, I am the good and the bad, everything in the Quartet, I dominate ......"

Listening to Cao Zijian's mantra like a ballad, Liu Gongjin followed silently in his heart, both of them were masters above the heavenly level, so they quickly entered a state of concentration.

And Cao Zijian's mantra made Liu Gongjin's body and mind relaxed, so that he could better absorb the surrounding gas, Cao Zijian realized that Liu Gongjin had gradually stepped on the right track, and he was still a little glad that he was in a group with Liu Gongjin in order to get twice the result with half the effort, otherwise if he was in a group with Zhao Guoshi and Long Thirteen, it would take a long time to explain this point, especially Zhao Guoshi's kind of activist.

Therefore, this kind of grouping is actually extremely reasonable, this kind of cultivation is only suitable for him and Liu Gongjin, because both of them belong to the kind of people who like to plan and then act, like Long Thirteen and Zhao Guoshi, who like to fight, they are more suitable for improving their strength in actual combat.

After the two of them settled down, the surrounding gas quickly poured into their bodies, and according to the method taught by Cao Zijian's mantra, Liu Gongjin filtered out the gas that was useless to the body and absorbed the remaining useful gas, but compared to the speed of Cao Zijian's absorption, his speed seemed to be faster.

This made Cao Zijian a little puzzled, even if he Liu Gongjin was a genius, he had only just started this unique breathing method, and the speed of absorption could not exceed his own at all, but in fact, he did surpass himself, and not a little, but twice as much.

When Cao Zijian opened his eyes, after seeing a trace of black gas permeating Liu Gongjin's body, Cao Zijian suddenly realized that he had filtered out the useless gases of poisonous gas, spiritual energy and demon qi, and directly absorbed the true qi, but Liu Gongjin was different, he also absorbed the demon qi!

Those who can absorb demonic energy are only half-demons like Adam, or martial artists who have entered demons, and ordinary martial artists will go mad if they absorb a large amount of demonic energy.

Cao Zijian just wanted to remind Liu Gongjin to pay attention, but found that those black qi were not crazy invasion of Liu Gongjin's body, but a gesture of surrender, as if they were willing to become Liu Gongjin's food.

This is not a good thing, it means that Liu Gongjin is in a posture of entering the demon, but his usual actions have no signs of becoming a demon at all.

Cao Zijian remembered that when Betty died, Liu Gongjin at that meeting had indeed fallen into the devil, but this time they met, but they didn't notice a little demonic aura from him, Cao Zijian thought that Liu Gongjin had escaped from the devil's path, but now it seems that it is not the case.

The demonic qi still existed in his body, which was different from ordinary martial artists who had entered the Demon Dao, and those demonic qi seemed to be more like an independent individual, as if it existed alone in Liu Gongjin's body.

Cao Zijian really didn't have this strange sight, but there was no doubt that the most suitable person to cultivate here was not him, nor Long Thirteen and Zhao Guoshi, but Liu Gongjin, who had two power systems.

And his cultivation speed will be twice as fast as those of them, or even more!

Cao Zijian was surprised and delighted, so surprised that he was afraid that Liu Gongjin would fall into the devil again, and he was happy that this might become another trump card to defeat the Night Emperor.

Just as Cao Zijian was thinking about this, someone suddenly appeared and interrupted their practice......