This requires a high demand for flame control. The flame controller must have a very good understanding of the receptor's bearing capacity in order to achieve the best body refining effect.

Red dragon and Han Yu cherish each other's hearts. They not only have a deep understanding of the strength of Han Yu's body, but also have a clear mirror of the changes of Han Yu's body under the tempering of fire. At all times, they have mastered the critical point of the flame, and the exercise effect on Han Yu's body is the best every minute.

The exercise from the inside to the outside is more painful for Han Yu than it is from the outside to the inside. However, from the inside to the outside, Han Yu can temper the eight meridians, five viscera and six viscera and four limbs and hundreds of bones at one time, which saves a lot of time.

Han Yu's physical properties can be better absorbed by fire.

This is a boring and long process. As long as Han Yu runs the Longba Bible and controls the fire, he gives it to the red dragon.

Under the tempering of the flame, Han Yu's body changed every minute and became stronger and harder. The flame controlled by the red dragon also increased every minute and kept at the critical point of the best effect.

Tianlao can't help but marvel at it. The cooperation between Han Yu and the red dragon is seamless and can achieve twice the result with half the effort. This is hard for anyone or any combination to compare.

First of all, after the passage of time, Han Yu's red light has changed. Both hardness and toughness have undergone tremendous changes.

At this time, Han Yu stood and punched the strong man of tianwu Bazhong. Other places would be damaged, but the eight meridians of the Extraordinary Meridians would not.

However, the temperature of Hanyu's body has been greatly increased by the fire. Even though the temperature of Hanyu's body has been greatly increased, Han Yu's body temperature has been increased to the point where the temperature of his body has been greatly increased.

On the fourth day, Han Yu's internal organs changed. His original flesh and blood became as hard as a gem.

On the sixth day, Han Yu's four limbs and hundreds of skeletons changed. Every inch of his skin was emitting a faint red light, as if it were carved from red agate.

Han Yu is very happy in the past. He can clearly feel the changes in his body. At this time, he will not have much problem with fighting against the strong and respecting the strong.

After six days of training, his whole body has undergone qualitative changes.

But this is not the end. Because the flame of the red dragon has not reached the most powerful level of the flame God.

The temperature of the flame emitted by the red dragon increased continuously, and Han Yu's body became stronger and stronger. When it reached a certain degree, the effect of the flame God's flame on the physical training began to weaken rapidly.

Another half a month later, the intensity of the flame emitted by the red dragon reached the strongest state of the God of fire. Without any protective measures, Han Yu's body could resist the flame of the God of fire. The intensity of Han Yu's body had reached a new height.

Han Yu's heart moved, and the red dragon stopped spewing out the flame, and he stood aside. Han Yu grew up and felt his whole body full of strength.

Han Yu strode to the stone wall and hit out with one blow.

"Bang..."

Although the stone wall did not crack, the whole earth trembled for it. For this result, Han Yu is not surprised. After all, he failed to break the stone wall with the Bo Yi Dao before. However, the strength of the stone wall was better than that of the Zun's army.

"Is my body as strong as I am now?" Han Yu looked at his fist and muttered to himself. Although he can't see the strength of his body, he doesn't feel it.

"If you try it, you will know." The voice of the old man rings.

Han Yu took out the Bo Yi Dao, holding it in his left hand, shaking hands with his right hand, and then the knife and fist collided heavily.

"When!"

Han Yu's fists were intact when a metal voice rang. You know, just now Han Yu wielded the broadsword, but he used 50% of his strength. Han Yu's fist is not only intact, but also has no pain.

Without hesitation, Han Yu waved his knife again and used 90% of his strength directly.

This collision is much stronger than the one just now, but Han Yu's fist is still not hurt, just a little bit of pain.

Now we can be sure that Han Yu's physical strength is no less than the soldiers of the venerable.

Han Yu was overjoyed. At this time, the hardness of his body was directly higher than Qi Tianjia by three points. If he ran into the Throwing Knife, Han Yu would never be injured again.

"Tianlao, can my physical strength directly fight against the natural calamity?" Han Yu asked expectantly. If we can fight against the natural calamity, we don't need to help. Han Yu has more time to prepare.

"I don't know. It's better not to try rashly." Tianlaodao.Han Yu suppressed the urge to try. After all, the natural calamity is merciless. Once it is introduced, it is impossible to give up halfway. Han Yu must have a plan in mind before he dare to try.

Han Yu did not stay for a long time. He put the Red Dragon into his body and continued to ride on the white dragon. After more than 20 days of pause here, the remaining time becomes more urgent.

After a while, Han Yu flew out of the canyon, and the vibration of the strange stone had reached a very violent level, which was even more frequent than when passing through the flying knife Canyon just now. Don't want to know that there is a great danger ahead, which is more terrible than the flying knife canyon.

Standing at the mouth of the gorge, Han Yu saw the Gobi desert, which was desolate and bleak with a breath of depression. The Gobi desert is endless, and sometimes violent tornadoes are formed.

At this time, although not too dangerous, but the more calm the surface, the more Han Yu dare not take it lightly.

"Wuwuwuwu..."

The wind blows over some stones and skeletons, making a sound like the cry of a woman, which makes people feel creepy.

Han Yu's power of soul shot out quietly. Although the force of soul was oppressed here, it was not as strong as it was in the dark fog. Han Yu's soul power can still cover the area of about 5000 meters.

Han Yu's soul power was not in the soil. He found that under the soil, there were countless skeletons buried. Some had no head, some had no arms, some had no legs, and all kinds of dead bones were found.

It seems to be an ancient battlefield. The people who died in those years were buried in the sand, and then formed such a desolate Gobi desert.

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