Immortal Palace Longevity

Devil Fire Refining is mainly divided into three stages, corresponding to the initial, middle and late stages of each realm.

At the beginning, middle and peak of each stage, you need to temper your mana once, a total of nine times for each realm. When the nine times are completed, you are at the peak of this realm, and your mana will be about 20% purer than that of the cultivators of the same level.

However, the magic fire refining also has certain requirements for the power of the flame. At present, the Qingyang magic fire is enough to complete the tempering of the initial stage of foundation building, but if you practice too fast, you need to find a way to increase the power of the flame in order to effectively temper your mana.

"It's time."

Liu Yu's mind moved, and the light blue flame in his dantian jumped suddenly, and the flame light was three points brighter.

Then, the flame slowly fell towards the mana lake, and the distance between the two slowly narrowed.

Perhaps it was one or two breaths, or perhaps it was longer, the flame and the lake finally began to contact.

As soon as the two came into contact, the light blue flame spread to the entire lake, and soon covered the surface of the lake, turning it into a blue sea of ​​fire, and then began to burn fiercely.

Gradually, the lake of mana began to roll and boil, with tiny bubbles emerging.

Beads of sweat the size of beans appeared on Liu Yu's forehead, dripping onto his clothes and wetting them.

The calm expression on his face was gone, and because of the pain, it became twisted and hideous, looking shocking.

Although the pain in the dantian and the flesh was not as great as that in the primordial spirit, he had to grit his teeth and endure it completely, and no spiritual objects could relieve it.

"Uh ah"

Liu Yu couldn't help but let out a scream, and then gritted his teeth and held it back.

He knew that this was the critical moment of tempering mana, and if he was not careful, all his previous efforts might be wasted, and his cultivation would be greatly damaged.

Because of the extreme pain, even his hands were shaking, but Liu Yu still slowly and firmly pinched the special spell.

He closely guarded the clarity of his mind, gathered his mind, and carefully controlled the Qingyang Demon Fire that was in close contact with the mana to avoid damaging the dantian.

Under the blazing pale blue flame, the mana lake maintained a certain degree of boiling, without further intensification or calming down.

Bubbles emerged and then exploded, and wisps of undetectable black smoke evaporated, which were impurities in the mana.

Because Liu Yu took much more pills than ordinary cultivators, although he usually paid attention to polishing his mana, the impurities in his mana were still much more than other cultivators.

If he cultivated to the peak of the late stage of foundation building, the possibility of condensing the golden elixir was extremely low because the mana was not pure enough and there were too many impurities.

These impurities were hidden very deeply, and Liu Yu could not find them at all when he looked inward with his spiritual consciousness, because they had long been integrated with the mana, and ordinary means could not remove them at all, unless he took rare spiritual objects of heaven and earth, or dispersed his power and started over.

But at this time, under the tempering of Qingyang Demon Fire, they were slowly discharged and dissipated, and part of the cultivation mana dissipated with it.

I don’t know how long it took, maybe one or two days, or maybe longer.

The boiling of the mana lake slowly subsided, and the sea of ​​fire gradually shrank.

The pale blue flames slowly gathered into a ball, and then the two slowly separated. The Qingyang Demon Fire rose above the Mana Lake again and occupied the center of the Dantian.

Compared with the previous one, the pale blue Mana Lake was significantly smaller in size, but more crystal clear, like the finest jade, emitting a pale blue glow.

As the mana refinement was completed, Liu Yu's expression gradually calmed down, and his hands stopped the magic formula and placed horizontally on his knees.

He did not end the exercise immediately, but was still slowly exercising and regulating his breath.

At a certain moment, Liu Yu suddenly opened his eyes, and a gleam of light flashed in his eyes.

"Puff"

As a mouthful of dark blood was spit out, Liu Yu's cultivation aura suddenly declined a little, but became more condensed, and the spiritual pressure of his whole body rose instead of falling.

"Hahaha!"

Feeling the more refined and pure mana in the Dantian, Liu Yu's face was as pale as paper, but he couldn't help laughing out loud, revealing a morbid smile.

There are many benefits of pure mana. Whether it is releasing spells or driving magic tools, the power is stronger than before. Although the total amount of mana has decreased, the overall strength has increased instead of decreased.

However, the side effects of long-term use of elixirs are more than that. A lot of elixir poison has accumulated in the body. The magic fire refining can only refine the mana and remove some impurities in the mana, but it is powerless against the elixir poison in the body.

Liu Yu slowly finished his work and sat cross-legged on the futon, with a flash of deep thought in his eyes.

For the elixir poison, he really has no good way now. There is no corresponding secret technique to remove the elixir poison, nor is there any spiritual object that can cleanse the body to remove the elixir poison. There is no news about this.

"We can only take a long-term view."

Liu Yu quickly retracted his thoughts. Although the elixir poison will affect the formation of the elixir, he is only in the early stage of foundation building now, and there is still more than a hundred years to prepare.

For the foundation building cultivators whose lifespan is generally around 240 years, they are in their prime before the age of 180. The body will not age and will not have any effect on the formation of the elixir.

Only after one hundred and eighty years old, around two hundred years old, will the body age rapidly, the essence will quickly dissipate, and the possibility of forming a pill will become lower and lower.

Liu Yu counted with his fingers and found that the process of tempering the magic power lasted for fourteen days. Tomorrow he would start his duty, and it was his turn to defend the ground.

Suddenly, a strong odor came into his nose. Liu Yu noticed that his body was covered with a layer of gray-black substance, and there was a lot of sweat on the surface, which wet his clothes and made him feel sticky and uncomfortable.

He quickly got up and went outside to wash his body carefully, and then changed into a black robe with a hood. He felt refreshed and relaxed all over.

Liu Yu did not go back to the practice room, but lay down on the armchair in the living room, took out the magic method of storing spirit from the storage bag, and continued to comprehend the foundation-building chapter.

One day later, Liu Yu left the cave at the right time, closed the formation, and went down the stairs he came from to the entrance of the spiritual medicine garden.

When he got up there, Yan Hongyu, Ding Hui, and Cao Mengyu were already there, chatting quietly together, and more than a dozen inner disciples in the Qi Refining period stood in three rows not far away, whispering.

After a sweep of his spiritual sense, he did not find the figures of the other three fellow disciples in the foundation-building period. They must have returned to the cave to rest.

"I am late because of my practice. I hope you three sisters will not mind."

Liu Yu walked up to the three women and greeted them with a fist.

"Nothing, nothing, it's just that we arrived first. Junior Brother Liu also arrived at the appointed time. Don't worry about these minor details."

Cao Mengyu's eyes flashed with a strange color, and she responded with a smile.

Yan Hongyu and Ding Hui looked normal and also greeted politely.

Liu Yu noticed Cao Mengyu's fleeting expression and his heart moved.

After three years of rapid improvement from taking pills, his cultivation level has gone beyond the scope of a newly promoted foundation-building cultivator and reached the level of a normal foundation-building cultivator. However, he adhered to the principle of keeping a low profile and had used the hidden spirit technique to maintain his own cultivation aura at the level of a newly promoted foundation-building cultivator when he came.

After the magic fire refining, his cultivation aura returned to the level of the newly promoted foundation building. There was no need to use the hidden spirit technique, so he did not use it at this time.

"What a keen perception!"

Although his cultivation level rose and fell, it remained at the level of the newly promoted foundation building, but there were some changes.

However, this change was very small, and even Yan Hongyu, who was in the late stage of foundation building, did not notice it. Unexpectedly, Cao Mengyu, who was in the early stage of foundation building, noticed it.