The next day

Xiao Bai got up early and walked out of the dormitory building.

He was going to go to the Heavenly Incineration Qi Tower first to try to refine the Dou Qi.

"Xiao Bai, I'll come with you."

Suddenly, Bai Cheng walked out from the side and said to Xiao Bai.

Xiao Bai was slightly stunned, and then nodded.

It seems that Bai Cheng has really made up his mind.

If the other person is willing to hug their thighs, that's fine.

After all, in this inner courtyard, it is quite convenient to have a little brother to help run errands.

It's a pity that among the children of the Xiao family who entered Canaan Academy, only Xiao Bai has entered the inner courtyard alone, otherwise Xiao Bai will use his own family.

The area of the inner courtyard was a little unexpectedly large, and the two of them ran all the way for nearly half an hour, but they still did not reach the boundary limit of the inner courtyard, and along the way, they could often see some fiery battle circles fighting with each other.

Xiao Bai and Bai Cheng occasionally stopped to look, and then turned to leave.

"The people who can enter the inner courtyard of Canaan Academy are really not ordinary people!" Retracting his gaze from a battle circle, Bai Cheng said solemnly.

The people in the inner courtyard are really strong characters.

In those battle circles just now, the vast majority of people are already high-level fighters.

Except for the freshmen who have just entered the inner courtyard, there are hardly any fighters at the level of Dou Shi here.

Even, the two of them had just seen the battle between two high-level Dou Ling powerhouses above the seven stars, and that kind of terrifying combat power, even if it was restrained, gave people a strong sense of oppression, far surpassing them.

"The students here have all been screened a lot, and any one of them is put into the surrounding empires, I'm afraid they can be treated as geniuses."

Xiao Bai said so, Canaan Academy's radiation range is very large, almost all the empires around the Black Horn Domain are included, and even geniuses from the Zhongzhou Continent come to study.

Here, you can really meet all kinds of people.

"Let's go, let's go to the Heavenly Incineration Gas Tower first." Xiao Bai said to Bai Cheng.

Afterwards, the two of them went straight to the north, and it took more than twenty minutes before they arrived at the Heavenly Incineration Gas Tower.

The Sky Incineration Tower is located in a hollow terrain.

Inside the hollow, an extremely large black tower was buried deep underground, with only a spire and a pitch-black entrance exposed to the ground.

At this time, the outside of the Heavenly Incineration Gas Tower was already crowded with students, and the black pressure was overwhelming.

The two squeezed through the crowd and finally barely managed to get to the front row.

While!

Just when the two of them just squeezed over, suddenly an ancient bell sounded in this area, and with the sound of the bell, the noisy sound suddenly stopped.

"Open the tower!"

The bell fell, and an old voice seemed to come from inside the tower.

Not long after the old man's voice fell, I saw that the closed dark door slowly opened with a creaking sound, and a faint fiery breath seeped out, making the temperature of this world rise slightly.

"Enter the tower!"

The old voice sounded again, and then everyone on the clearing suddenly got up, only to hear the sound of breaking the wind, and one after another figures shot towards the tower gate.

"Let's go, let's go in too." Bai Cheng said excitedly.

He had been fascinated by the Heavenly Incineration Qi Tower, a holy place that was conducive to cultivation, for a long time.

Immediately, the two of them also jumped over.

However, at the gate, Xiao Bai saw an elder standing there.

The passing students saluted the elder.

Xiao Bai and Bai Cheng also hurriedly saluted, and then stepped into the Heavenly Incineration Qi Tower.

Call!!

In the next second, the bodies of the two suddenly froze in place.

I saw that Xiao Bai's beautiful face suddenly turned red like a coal.

And a faint white mist, with a sneering sound like barbecue, slowly seeped out of its body.

The elder at the door waved his hand, and immediately gathered up a wave of strength and sent the two to the side, so that they would not block the door and hinder the others.

And at this moment, Xiao Bai was looking inside his body.

Inside him, a strange flame suddenly appeared.

The fire was formless, born out of thin air, but it was burning his body.

The high temperature emanating from it made the meridians, bones, muscles and other tissues in Xiao Bai's body begin to tingle slightly.

"This is the heart fire of the projection split of the Fallen Heart Flame, it is really powerful, no wonder if you have cultivated in the Heavenly Incineration Qi Tower for a long time, you will be poisoned by fire poison in your body......"

Xiao Bai calmly looked at the flames in his body, and without any hesitation, he mobilized the fighting energy in his body, turning into a rolling torrent and pouring into the fire in his heart.

I saw that the golden fighting spirit was like a big dragon, and the fierce one fell into the heart fire, and then crossed out from the other end of the heart fire.

Then Xiao Bai saw that after his fighting spirit was burned by the fire in his heart, his body size had shrunk by more than half, as if he had been squeezed dry.

However, at this time, he could intuitively feel the changes in his fighting spirit after tempering.

The first is refinement purity, originally Xiao Bai thought that his fighting spirit was pure enough.

But after the tempering of the heart fire, I found that the original fighting spirit could be more refined.

Although the elixirs and spiritual rice he usually eats are pure products after refining the spirit.

But this was not the case with the Earth Fire Dragon Huang Dan he had taken.

Moreover, every time Xiao Bai broke through his cultivation, his body would automatically absorb the energy of heaven and earth.

These foreign heaven and earth energies are not pure.

Xiao Bai thought that his fighting spirit was pure enough, but in fact, it was only relative.

And now the fighting spirit that has been tempered by heart fire is really pure to the extreme, without any impurities.

In addition, the fighting spirit has become more condensed after being tempered by the heart fire, and there is no sense of vanity at all.

That feeling is like the fighting qi passing through the invisible flame, and it is tightly screwed together by its somewhat scattered fighting qi.

In this way, the power that this much smaller Dou Qi can burst out can be even stronger than the previous surging Dou Qi.

This is the benefit of heart fire refining, which can make the fighting spirit become incomparably pure and condensed.

It is really a great benefit for improving cultivation and breaking through the realm.

Subsequently, Xiao Bai continued to control the fighting energy in his body to pour into the fire in his heart for tempering.

But soon the fire disappeared......

"It's not in the cultivation room, the distance between the door is still too far." Xiao Bai sighed slightly.

Plop!

As soon as Xiao Bai opened his eyes, there was a sound of falling around him.

I saw that Bai Cheng had already fainted on the ground.

"Little one, you can actually wake up on your own in the burning of your heart?"

At this time, the elder who was standing not far away spoke with some surprise.

"Elder, the family teacher taught me in advance how to deal with the fire in my heart." Xiao Bai said.

Elder Fire had indeed told him to avoid suffering when he first came to Heaven to incinerate the Qi Tower.

"I see......"

The elder nodded, then stopped speaking.

Seeing this, Xiao Bai arched his hand slightly, then reached out and lifted Bai Cheng who had fainted, took out a Brain Awakening Pill and stuffed it into Bai Cheng's mouth.

Oops!

Bai Cheng was suddenly awakened by a cool breath.

He only felt a cold breath from his throat to the Tianling Gai, making him extremely sober.

"Let's go, let's go and choose the cultivation room."

Xiao Bai saw Bai Cheng wake up, so he turned around and walked towards the depths of the Heavenly Incineration Qi Tower.

On the first floor of the Heavenly Incineration Qi Tower, there were more than five hundred cultivation rooms.

According to the location of the cultivation room, it is divided into three levels: high, medium and low.

The advanced cultivation room is close to the center, and the intermediate and low levels are on the periphery.

The effect of cultivating the inner heart fire is naturally as advanced as possible.

It's just that if you want to enter the advanced cultivation room, you need to rely on your strength to get it.

"With strength, but there don't seem to be many powerful guys in this first layer."

Bai Cheng looked at the students around him with disdain and said.

Most of the students in the first layer are just low-level fighters.

"Why don't we go deeper, we have the Green Fire Crystal Card, and we can enter the sixth layer."

Bai Cheng said as he played with the crystal card in his hand.

"No, the academy stipulates that freshmen must cultivate at the first level for a week before they are eligible to go to other tower layers to cultivate."

Xiao Bai shook his head and said.

In fact, with his and Bai Cheng's cultivation, the cultivation effect of the first layer was not significant.

Six-star Great Dou Masters and Nine-Star Great Dou Masters like them are best cultivated at the third layer.

However, in the initial practice of heart fire tempering, it is easy to fall into fire poison in the body, and you must go through a week's adaptation period before you can freely choose the number of layers.

Subsequently, Xiao Bai and Bai Cheng directly occupied a high-level cultivation room.

They just released the aura and momentum on their bodies, and the others who originally wanted to compete with them for the cultivation room turned around and left.

There is no way, the cultivation of the two of them is too superior among the students of the first layer.

In the advanced cultivation room, Xiao Bai came to a black stone and sat down.

He took out the Blue Fire Crystal Card, and slowly inserted it into the groove in front of him.

Only a faint clicking sound could be heard, and a faint light burst out of the groove.

And with the appearance of the millilight, Xiao Bai clearly saw that the number on the Qinghuo Crystal Card immediately decreased by one, obviously this should be the deduction of the cost of one day's cultivation, that is, a fire energy.

Then, Xiao Bai immediately sealed his hands, closed his eyes and fell into a deep cultivation state.

……

The time of cultivation passed as calmly as flowing water.

It was like a handful of fine sand flowing quietly between your fingers.

While!!

Suddenly, an ancient bell rang throughout the tower.

Xiao Bai, who was in the cultivation room with his eyes closed, was also awakened and slowly opened his eyes.

For a while, the aura that was slightly uncontrollable because of the increase in strength suddenly diffused, setting off a golden aura around the body.

"Hoo ......"

He let out a long breath, but his eyes became brighter than ever, and his spirit was in an excellent state.