Among them, the simplest and the lowest utilization rate of heaven and earth vitality is to directly use various ores that are naturally nourished and rich in heaven and earth vitality.

These ores are collectively known as energy primitives.

The energy primordial stones dug out of the ore veins are rarely directly used by cultivators for cultivation and absorption, or anything else.

Instead, it must be used only after some refining and other treatment methods to maximize the utilization rate of the Heaven and Earth Yuan Qi in it.

After all, the utilization rate of directly absorbing the freshly dug energy rough stone can only reach one-fifth, or even lower.

However, after a series of methods to process the energy ore, the utilization rate can be at least doubled.

For a better distinction, the former is called the Energy Primordial Stone, and the latter is the Yuan Energy Stone.

However, in terms of value, the Energy Primordial Stone is at least three times higher than the Yuan Energy Stone!

This was the result of a rumor that was widely circulated in the cultivation world:

"The natural energy primordial stone contains a small amount of the power of the origin of heaven and earth.

That is, the origin energy of this world, the origin of the universe.

It is composed of the Chaos Yuan Qi and the Heavenly Dao Law of this world.

The current cultivation system has not yet found a way to directly absorb the trace amount of heaven and earth origin power in the energy primordial stones, resulting in the utilization rate of the energy primordial stones not reaching more than thirty percent.

If there are cultivators who can use the power of these Heaven and Earth Origins, it is possible for them to cultivate in one step and a thousand miles, and become a god in the daytime. ”

It is precisely because the content of the rumor is too tempting that the existence of this rumor has become an expectation, a sustenance of the soul.

Even if it is far away, even if it is never obtained, it still makes the cultivation define the rule that the energy primordial stone is more valuable than the yuan energy stone.

At this moment, what Teacher Lan is using is an energy primordial stone that has not been processed.

Because of this, the students clearly saw the almost distorted expression of forbearance, pain, and distress on Mr. Lan's face.

This made all the students cry and laugh, but I didn't expect that Teacher Lan, who has always been calm and elegant, would also have a time to change his face and break his skills!

The classmates suppressed their laughter, for fear that they would be investigated after being discovered by Mr. Lan, and they were also afraid that after laughing, they would disturb the breakthrough of the new students.

But Teacher Lan had already sensed it.

With his cultivation that had already stepped into the half-step god level, how could he not notice the crooked path in the hearts of those little cubs who had not yet entered the cultivation level?

But now he doesn't dare to be distracted at all, this little thing in front of him is more important than anything else!

is so important that even if he needs to protect her with his life, he will not hesitate to go to the top!

Teacher Lan had no choice but to make a note to this group of cubs in his heart: "Wait, little rabbits, it's time to clean you up!" ”

The students in Class 999999999, who were desperately trying to hold back laughter, suddenly shivered in unison and glanced at each other, the situation was not good, hurry up and retreat!

So when Teacher Lan was thinking about how to clean up the group of cubs under him, the students tiptoed out of the classroom one by one, and ran away the moment they stepped out of the classroom door!

The "loving interaction" between Teacher Lan and the students is not perceptible to Guan Mingxin.

As more and more Heaven and Earth Yuan Qi frantically poured into the body, the Yuan Power that had been refined stored in the dantian position changed again.

From the original milky white, it gradually changed to huang, green, blue, red, brown, cyan, purple, white, and black ten kinds of intertwined Yuan Li Qi masses.

After the ten Yuan Force Qi masses were clearly separated, they began to merge again according to a certain law, and finally formed a silver-gray air flow mixed with milky white light spots.

This silver-gray air flow swirled around the milky white bead in the dantian, the speed went from slow to fast, and there were black dots flashing in the center of it.

It wasn't until the black dots were fixed and all the silver-gray airflow entered the black dots that Guan Mingxin's behavior of absorbing a large amount of Heaven and Earth Yuan Qi stopped temporarily.

Sensing that Guan Mingxin had paused to absorb the vitality of heaven and earth, Teacher Lan breathed a sigh of relief.

With a toothache, he glanced at the fragments of the energy primordial stone on the ground, and finally left without saying anything.

In the classroom of Class 999999999, there was only one child left who was still writing and drawing.

When Guan Mingxin was completely sober, it was already half a month later.

During this period, Xuanyuan Yunyan, He Piaojun and Kong Qinglang directly asked for leave to accompany her.

Every once in a while, place Yuan Energy Stones beside her, so that her body can quickly absorb the Heaven and Earth Yuan Qi, so that she will not lose her vitality due to hunger.

Even at night, one person will be left to keep vigil, and the other two will go back to the villa to rest.

But even with the Yuan Energy Stone, Guan Mingxin's body still lost weight rapidly at a speed visible to the naked eye......

When Guan Mingxin opened his eyes, he was already skinny, skinny, and terrifying!

The extreme weakness of her body made her unconscious before she could speak.

"Baby, baby, what's wrong with you?"

"Baby, don't scare me!"

"Baby ......"

This was followed by another wave of people flipped on their backs

Fortunately, the school doctor of the academy had already been dragged by Teacher Lan and waited on the side, stepped forward to put aside the nervous Xuanyuan Yunyan and the three of them, and carefully examined them.

It was confirmed that it was just malnutrition after the unexpected epiphany took too long, which led to the improvement of cultivation and the body's energy was not replenished in time.

Just soak it in the nutrient solution for a few days.

You don't even need a special medical recuperation podium, just a game nutrition pod in the villa.

So, with the help of He Piaojun and Kong Qinglang, Xuanyuan Yunyan returned to the villa with Guan Mingxin.

However, Xuanyuan Yunyan, who was "wealthy", directly ordered a medical recuperation warehouse on the Star Network, and carefully put Guan Mingxin into it.

This is another three days.

When Guan Ming's heart was sober again, the hunger that made her almost collapse made her have no time to speak, so she drank two large bowls of vegetarian porridge in a row with Xuanyuan Yunyan's hand.

Feeling that the burning stomach was finally a little more comfortable, I was in the mood to look at the three people who had been anxiously asking for a long time, pulled the corners of my mouth, and pulled out an awkward smile:

"Don't worry, I'm not fine, right?

It's just an epiphany when I realized it unexpectedly, and nothing else. Don't worry. ”

Hearing this, the other three people in the villa let out a long breath, and the boulder that had been pressed on their hearts for eighteen days of local time finally fell.

He Piaojun stretched out his hand viciously, wanting to rub the little ghost's head well, but the palm of his hand had to be withdrawn under the attack of Xuanyuan Yunyan's angry eyes, so he had to gently touch Guan Mingxin's long hair, and sighed helplessly and dotingly:

"You!"

The sandstorm is coming again, the sky is full of yellow sand, the visibility is already low 50 meters away, and it is purely invisible 100 meters away, and if you go out without a mask, your face will be full of dust.

Treasures, do you have a sandstorm over there? In spring, keep your skin moisturized and drink water frequently