The Demon Heart Technique is different from the Five Elements Formula, and there are no special requirements for martial artists to practice the Five Elements Formula, as long as the physical attributes belong to the Five Elements, they can be cultivated, and the movement will not be too large, which belongs to a relatively mild type of exercise.

The magic heart trick is different, it has extremely high requirements for the physique and spiritual power of the martial artist, and it is very domineering to gather and absorb the energy of heaven and earth, just like plundering, the impact on the body is great, and it can't withstand it without a strong physique.

Similarly, sufficient heaven and earth energy enters the body, without the suppression of spiritual power, it is difficult to refine calmly, and there will be a risk of explosion if it cannot be controlled, perhaps this is the reason for the word "demon".

"Heart" may be a requirement for the resilience and ambition of a warrior, without the tenacious spirit of a warrior, without the courage to break through the shackles and move forward, it is difficult to comprehend the essence of the magic heart.

It can be said that the Demon Heart Technique is a technique that requires extremely high requirements for martial artists and has an extremely fast cultivation speed, especially like Tu Ming who started cultivating at the beginning of the martial spirit, and the speed of improvement is definitely like a rocket.

"Boom!"

In less than a day, there was a sound like thunder coming from the cave where Tu Ming was, and the surrounding heaven and earth aura swept like a violent wind, and the terrifying energy infusion made Tu Ming feel that his body was like a sword passing through, the pain was unbearable, and fine blood and sweat appeared on the surface of his body.

The furious energy raged in the body, like a galloping horse.

Tu Ming endured the severe pain in his body, mobilized his spiritual power, and guided the violent energy in his body to rush towards the martial spirit.

The wind and clouds in the cave gathered for a while, the aura rioted, and the whirlpool formed by the white water mist made a rumbling sound, and the power was unmatched for a while.

Tu Ming's face was flushed, his lips were tightly closed, a trace of blood flowed out of the corners of his mouth, and his body was in sharp pain like tearing, like Ling Chi.

"Purple Qi!" Tu Ming let out a low sigh, the space in his body shook, and the purple mist gushed out violently, enveloping his whole body at once, and then being swept into his body by the aura of heaven and earth.

"Buzz ......"

The addition of purple qi made the violent energy a lot more docile, making Tu Ming, who was cultivating, stunned for a moment, and the momentum of ten thousand horses galloping and like a tsunami slowly slowed down, turning into surging waves, and the severe pain was also greatly relieved.

"How can it still have this kind of effect?" Tu Ming felt a burst of ecstasy in his heart, but the energy surging like a wave, the requirements for spiritual power were raised to another level, so that he had to concentrate all his strength to control it.

However, with the aid of a large amount of purple qi, it can withstand this kind of consumption.

Gradually, Tu Ming's tense body relaxed, his expression soothed, and he slowly entered a deep level of cultivation.

But Lei Kai and Yao Lao, who were concerned about Tu Ming's cultivation, were not calm, looking at the terrible movements in the tunnel, their faces were full of horror, especially Lei Kai, the muscles on his face jumped, and he couldn't wait to pull Tu Ming out to see what kind of exercise this was, it was so violent and so violent.

"No, I'll definitely find a way to let this kid show me the exercises, it's so fucking powerful!" Lei Kai doesn't care if he is embarrassed or not, he will get the exercises first.

"This kid has a promising future, and with his current strength, it is estimated that no one in the inner door is his opponent!" Yao Lao stroked his beard, and lost his mind for a while.

"Isn't this kid about to break through to the realm of martial artists?" Lei Kai's heart was also a little sudden, he hadn't seen such a perverted person for many years.

"I can't see it, this kid seems to be covered with a fog, I can't see through, he was still at the peak of martial arts two months ago, no matter how fast he is, it is impossible to break through the realm of martial artists, at most ......" Yao Lao said this, stopped suddenly, turned his head to look at the stupid Lei Kai:

"Impossible, his speed can't be so fast, even if he reaches the second or third level of martial spirits, it's impossible!" Yao Lao Meng came to his senses, only then did he realize that Tu Ming was still at the peak of martial arts more than two months ago, and it was too incredible to advance to the martial spirit realm in such a short time.

"You...... What did you say?" Lei Kai's eyes were about to bulge, "You said he was still at the peak of martial arts two months ago?"

"Wow! It's not the peak of martial apprentices, it should really be the second level of martial apprentices, and besides, I stared at him to cultivate, it only took three or four days to be promoted from the fifth level of martial apprentices to the ninth level of martial apprentices, and it took three or four days to be promoted to the fourth level, and in two months, it shouldn't be a problem to be promoted to the junior level of martial arts...... Right?" said Yao Lao, who was not even sure about him later.

"Boom" When Lei Kai heard this, he couldn't control his breath, and shook the chair under his ass into pieces, and he didn't know that he was sitting on the ground, his body trembled, his eyes were dull, and his lips trembled, "How is this possible?

In the cave, Tu Ming still continued to cultivate, the violent energy was still there, and it lasted for a long time, and finally after two days, the aura storm slowly receded, and Tu Ming, who was immersed in cultivation, slowly opened his eyes.

"Talent Martial Spirit Level 1 Peak?" Tu Ming sensed it, and couldn't help but smile a little bitterly, after two days of continuous cultivation of the Demon Heart Technique, absorbing and refining the heaven and earth energy to a terrifying level, he didn't even break through the second level of the Martial Spirit, which made him very dissatisfied.

But looking at the space in his body again, Tu Ming couldn't help but be happy.

At this time, the space had expanded to a range of nearly twenty meters, and it had become much empty, and the purple mist was consumed in cultivation, otherwise he would not have stopped.

"It's quite fucked, it is estimated that most of the absorbed heaven and earth energy will be used to expand the space!" Tu Ming was a little enlightened, and couldn't help but smile bitterly.

It is also a loss to cultivate the Demon Heart Technique, if you continue to use the Five Elements Technique and reach the current realm, it is estimated that it will take dozens or hundreds of times the time, thinking about Tu Ming is a big head for a while.

I thought that cultivating the Demon Heart Technique would allow him to quickly improve his strength, but I didn't expect that the space in his body was a bottomless pit, and most of the energy was absorbed by it, so he was a little speechless.

"I don't know when there will be a leader, if it expands without limit, then it must not be dragged to death? There is no other use for such a large space except storage!

Tu Ming was very devastated, and he wanted to go all the way and quickly improve his strength, but now it seems that it is unlikely.

"Alas, I don't want to think so much, without purple qi, it would be masochistic to cultivate again, and I have to add some purple qi!"

After speaking, Tu Ming stood up, moved his somewhat stiff body, and smiled slightly, now there is no pressure in the five-fold area, it seems that he has collected enough purple qi to go to the tenfold area, he looked at the direction of the tenfold area in front of him, and then turned around and walked towards the stone gate.

In the Kunmen Outer World, the battle in the ring is in full swing, and the outer gate, the inner gate, and the core disciples are all fighting fiercely for the places to enter the secret realm.

The rules are very simple, to decide the champion, as long as you occupy the ring undefeated, you can get a place in the end.

However, the original ten places became nine, and the inner gate was canceled one, and the specific reason was not given by the sect.

There are a total of nine rings, one outside the door, three inside the door, and the core disciples are assigned five, as long as they continue to win, they can get a place, and the competition is very fierce.