Gu Han hesitated for a moment, and said tentatively: "Master, is there any particularly hot place in the sect?" I am now practicing a secret technique of quenching the body, and I have reached the stage of fire quenching, and then there is ice quenching, and the completion of ice quenching is considered complete. ”

Seeing that Sheng Nian didn't call himself a teacher, Gu Han simply didn't call himself a disciple.

Sheng Nian was silent for a while and said, "Wait." ”

After that, his figure flashed, and he disappeared from the spot.

Gu Han was taken aback, and secretly said that this style of acting was too unexpected, he didn't feel a little worried, what should the master do if he was in a bad mood one day and casually split himself?

After a cup of tea, Sheng Yuan returned, he untied two beast control bags from his waist, and released a demon beast from each of them, which were a fire fox with a red body, and a snow-white cold valley ice snake.

Gu Han was dumbfounded! This cheap master is too kind, right? Not to mention, I caught two Xuannian Realm demon beasts and came back, one was like fire, which was just right for fire quenching; One is chilly to the bone, just right for ice quenching.

"Let's practice." Shengyuan Road.

"Uh...... Master, I was damaged during the realm breaking test, and I haven't recovered yet. Gu Han remembered this.

Sheng Yuan flicked his fingers, and a red light shot out, circling around Gu Han, and then penetrating through his eyebrows.

Gu Han only felt that his spirit was lifted, and the feeling of drowsiness and weakness caused by the loss of the Yuan Shen suddenly dissipated without a trace.

"Thank you, Master." Gu Han bowed down and thanked him, and immediately sat down between the fire fox and the ice snake, running the Guiyuan Gong to resist the invading power of ice and fire.

"Get closer, with all your might." Sheng Yuan commanded at the two-headed demon beast.

They seemed to be able to understand human speech, and they each moved closer to Gu Han, and tried their best to stimulate the demonic power in their bodies.

Can't you just take your time? Let me get used to it...... Gu Han complained bitterly in his heart, he could barely bear the hot and cold together, but now the distance has become closer, and the strength has become stronger, for a while, he only feels that half of his body is like falling into an ice cellar, and the other half is like a falling furnace, but his mind is still unusually clear, so the pain has increased a little bit.

Complaining is complaining, but he doesn't dare to slack off in his hands, mobilizing the mana of his whole body all over the surface of the skin, faintly forming a thin light mask, although it is not very effective, but it has been somewhat relieved.

Time passed little by little, and the fire resistance and ice resistance of Gu Han's body had improved to a certain extent, and he gradually adapted to this environment of ice and fire.

At this time, Sheng Yuan spoke again, causing the two demon beasts to switch positions!

Gu Han wanted to cry without tears.

…………

A day later.

Although Gu Han has endured unprecedented torment and torture, the results are very significant, and it only took one day to practice the "Bone Forging Method" to perfection, the iron armor skill is directly full level, and the Xuangang Sutra has also reached the third level of small success.

Next, he planned to directly impact the Casting Body Realm.

"Master, I want to break through to the Casting Body Realm now, and then I can cultivate a superior body protection body, and I believe it will play a great role in the advancement of the Xuangang Sutra." Gu Han looked at Sheng Yuan expectantly.

Sheng Yuan nodded, and he agreed.

"That'...... Realm Breaker? Gu Han asked.

"No, you don't." Sheng Yuan shook his head and said, "The effect will be better." ”

What did you mean when you said you had it at the beginning? …… Gu Han was stunned for a long time and asked, "What if I fail?" ”

"Take a few days off." Sheng Yuan replied as a matter of course.

Let me go, I want to go home...... Gu Han wailed in his heart, he didn't pay attention to the basics, but he didn't feel that he needed to pay attention to this kind of nitpicking, especially now that it was the early stage of the game, it was the golden stage of growing strength and expanding advantages, if he wasted a few days or even more for this little flaw, it would be too much to lose.

However, he has no choice at all now, except to obediently listen to the words of this "master", there is only one way to judge the teacher.

It turns out that it's not a good thing to be too kind...... Gu Han sighed in his heart, sat on the ground honestly, and adjusted his state.

After a while, he felt that his mana was full and his mental state was also excellent, so he swallowed a magic pill, mobilized the mana of his whole body, and began to carry out the difficult road of rushing through the level.

The casting realm in the game is also known as the acquired realm. When exercising and improving, pay attention to the flesh and blood, the first in the bones, the growth before life, and the hiding before killing.

Therefore, this casting body realm is actually using mana to continuously temper and strengthen one's own bones, and after the bones are strong, the meridians and flesh of the body will naturally continue to increase.

The most important of these is the strengthening of the spine.

The spine of the human body is divided into five parts: cervical vertebrae, thoracic vertebrae, lumbar vertebrae, sacral vertebrae, and caudal vertebrae from top to bottom, including seven vertebrae, twelve thoracic vertebrae, five lumbar vertebrae and five sacral vertebrae, and four tail vertebrae.

Rushing to the casting body realm is to use mana to open up the first cervical vertebra and the last tail vertebra, only in this way can mana continue to pour into the entire spine from these two "entrances", and truly begin to cast the body and strengthen the body.

During the whole process of rushing the level, you can't stop and stop, you have to do it in one go, if the mana is not enough or the spirit is not good, it will be difficult to succeed in rushing the level, and the body will be greatly damaged, which is the so-called general rule of smooth, and if you don't pass it, you will be damaged.

At this moment, Gu Han, who had calmed down, carefully controlled the mana in his body, first gathered it at the first cervical vertebrae, and then concentrated all his energy, allowing the mana to penetrate into the bones little by little.

This process is actually very simple, there is no technical content, just let the mana continue to penetrate, and finally make the surface of the bone glow with a faint silver, it can be considered to be through.

But at the same time, it is extremely difficult, because there is no trick, if the mana is enough, it will work, and if the mana is not enough, it will not work.

Time passed quietly, Gu Han consumed nearly three-fifths of the mana in his body, and finally opened up the first cervical vertebrae, which was still the time of Guiyuan Gong, and there was also the pill to speed up the mana replenishment.

This made him a little apprehensive, but he didn't dare to think about it, because the process of rushing through the level could not be interrupted, and the interruption would fail, so at the same time as the cervical vertebrae were opened, Gu Han suppressed the distracting thoughts and controlled the mana around the tail vertebrae to launch an "attack", but this time, he put the rhythm to the slowest in order to get more time to recover the mana.

One minute......

Three-minute ......

Five minutes......

Ten minutes passed, Gu Han felt that his mana was on the verge of exhaustion, and his spirit began to fail, his mind was dizzy, and his consciousness was confused.

Biting the tip of his tongue heavily, the sharp pain immediately brought him to his senses.

This is exactly the time.

"Poof!"

A crisp and subtle sound suddenly exploded in Gu Han's mind, and immediately the two bones glowed with a faint silver light at the same time, and a large stream of energy gushed out from it, quickly penetrating all parts of the body, refining flesh and blood, strengthening the viscera, and the spirit and mana also began to recover quickly, and the whole person seemed to come to life in an instant.

Gu Han was overjoyed, this was clearly a sign of a successful breakthrough in the Casting Body Realm!

Subsequently, he quickly settled down and continued to breathe, and when the realm stabilized, he slowly collected his skills and took out the information crystal disk.