The first three layers of the quenching technique are all the process of accumulating spiritual energy and improving the body, and there is no difficulty.

However, the fourth layer needs to nourish the soul with spiritual energy, give birth to spiritual consciousness, and at the same time use spiritual consciousness to control the spiritual energy in the body, and operate exercises to transform it into mana.

A month later, the fire jade suspended above his head slowly faded its light, sank into the top of Yu Yilie's head little by little, and disappeared.

At this moment, Yu Yilie, who was sitting in the secret room, slowly opened his eyes, and suddenly a light of essence came out, which looked particularly strange in the slightly dim secret room.

"Whew~!" Yu Yilie let out a breath of turbidity.

Calmly stepping down from the stone bed, he couldn't help but move his somewhat sour limbs.

I don't know how long it has been, but he doesn't feel hungry and thirsty at all, except for his body being slightly sour because he hasn't been active for too long, and he feels full of strength at this time.

Looking at the clothes on his body, he actually had a strange feeling, it seems, this clothes are a little tight on his body?

Could it be that I have grown taller?" Yu Yilie thought in wonder, and then he clenched his fists with both hands, and violently urged the mana rolling in his body, which immediately shook the clothes on his upper body to pieces.

Looking at the chest that looked strong and burly under the tempering of the fire jade's spiritual power, as well as the perfect eight-pack abs, Yu Yilie couldn't help grinning.

"The energy contained in the aura is really magical, although I have absorbed very little into the dantian, but it has refined my body to be more perfect. However, in a short period of time, with the help of fire jade and elixir, I reached the fourth level of qi training, transforming the aura in my body into mana. If I go on like this, I will be able to surpass those talented people and reach the top!" Yu Yilie muttered to himself, unable to help but be extremely excited in his heart.

At this time, his Qi cultivation had reached the fourth level of Qi cultivation, which could be described as a rapid progress.

Feeling the mana and true qi surging in his body, Yu Yilie only felt that his body was filled with explosive power, as if he could punch through a mountain.

"Whew! What a wonderful feeling, although it is impossible to really penetrate a mountain, but this thrill full of power is so wonderful!" Yu Yilie clenched his hands, constantly accumulating strength, as if he was going to break everything with his fist.

Immediately, Yu Yilie seemed to think of something, and closed his eyes with a slight movement of his mind.

When everything around him fell into darkness, an invisible wave poked out of his mind, and suddenly the things in the space within a radius of one foot resurfaced in his mind.

"This is spiritual sense, but it's too weak now, it's better to see far with your eyes. Yu Yilie slowly opened his eyes and thought depressedly.

And when he saw the two empty bottles on the stone bed, he couldn't help but show a wry smile.

Although he had successfully cultivated to the fourth level of Qi cultivation, the two bottles of Qi Gathering Pill had been consumed by him, and he had not used the remaining half bottle of Qi Gathering Pill.

What made him very helpless in his heart was that when he broke through the fourth layer of Qi training, he found that the speed of running the quenching technique to absorb spiritual energy was far from catching up with the speed of mana transformation.

As a last resort, he had no choice but to swallow the pill to transform more aura. The aura overflowing from the fire jade needs to be refined and absorbed a little bit before it can be collected for his own use, but the aura contained in the pill is more gentle and huge than the aura in the fire jade, and it can be quickly absorbed into the dantian by him.

There were more than twenty Qi Gathering Pills, but in order to break through the fourth layer of Qi training, he actually consumed all of them.

Could it be that he is really as the immortal envoy said, he is a waste spiritual root with all five elements, and his cultivation is like carrying a mountain, and he is extremely slow?

Yu Yilie frowned and fell into deep thought, indeed, when he was running the exercises, even though the fire jade was constantly injecting spiritual energy into his body far away, it seemed that there were very few that could be absorbed by him.

"However, why is it that the aura in the Qi Gathering Pill can be absorbed quickly, or is it a pure mana that has been refined?" Yu Yilie thought in his heart, but he had the idea of the Qi Gathering Pill.

Although he could slowly wait for the fire jade to increase the strength of his spiritual root, and as the strength of the spiritual root increased, his cultivation speed should also increase, but when did he have to wait until three years?

If Zhao Pingchuan returns from cultivation, he won't have to trouble him?

"It seems that this path of cultivating immortals is the same as practicing martial arts, if you want to achieve it quickly, you must consume countless spirit stones and pills in order to continuously improve your strength! It is difficult to move an inch without spirit stones in the world of cultivating immortals, and it is also difficult to make a difference without silver in the world, I want to refine the pill! Earn spirit stones!" Yu Yilie realized the key in an instant, and couldn't help but say in a resolute tone.

Fortunately, he had learned from the Xiao family that Shui Yuanhua, the last main material for refining the Qi Gathering Pill, was there.

Right now, in the world, he can be said to be powerful and rich, and he can buy many copies of the materials of the Qi Gathering Pill and use them to practice his hands.

What's more, my uncle has a professional team of alchemists, although most of the refining pills are quenching pills, qi and blood pills, etc., which are used to improve the strength of the army.

But what he needs is just the basic knowledge of alchemy, and there shouldn't be much difference between the two, just the materials.

Thinking like this, Yu Yilie couldn't help but suddenly set a goal, he wanted to refine the Qi Gathering Pill before entering the Immortal Cultivation Realm!

"I don't know how long it's been, so let's go out and have a look. By the way, I bought the medicinal herbs back, and discussed with my uncle that I wanted to learn alchemy. Hehe, seeing me break through the middle innate stage so quickly, I guess my uncle and cousin will be surprised!" A smile flashed across the corner of Yu Yilie's mouth, and then he walked towards the door of the secret room.

Slowly pushed the door of the secret room open, and the guards guarding the door immediately stepped forward when they saw this, and said respectfully: "Young Master Lie, you are finally out of the customs, and the little one will immediately go to report to the city lord." ”

"No need, I'll go by myself later, you've worked hard, go down and rest!" Yu Yilie waved his hand, said indifferently, and then strode towards his residence.

The two guards were surprised when they saw Young Master Lie walking out naked, but they didn't say much. And they could clearly feel that a slightly hot aura emanated from Young Master Lie's body.

It seems that the Red Flame Gong has been cultivated to a high level, but it is faintly more powerful and domineering than Young Master Xuan's Red Dragon Mental Method.

They still don't understand there, Young Master Lie is only afraid that he has surpassed Young Master Xuan and reached the middle stage of innate first!

After half a pillar of incense, Yu Yilie was dressed in a white brocade robe with a golden belt around his waist, and went straight to the hall.

In a few moments, he came to the front of the hall unimpeded, but as soon as he stepped into the hall, he noticed that there were quite a few people inside, and it seemed that they were still arguing about something.

Seeing this, he couldn't help frowning slightly, and looked intently at who there were.