Once the energy circuit is fixed, it is difficult to modify it in the future unless the circuit is scrapped and rebuilt.

However, this is tantamount to self-destruction, and where the circuit is abolished, resistance will be generated, and it will be even more difficult to build a circuit in the same place again.

Therefore, with each breakthrough, the practitioner accumulates as much strength as possible, and only then does he begin to build a circuit and strive for perfection until he reaches the limit.

"There are two ways to break through, energy infusion and construction."

This was the information brought to him by the elven memory inheritance in Tang Bai's mind.

Energy infusion, as the name suggests, is to infuse stored energy into the heart, allowing the blood to circulate throughout the body with energy.

The circuit constructed in this way is the perfect circuit.

If the energy is insufficient to perfuse the whole body to form a circuit, then the second method can only be chosen to break through.

Constructing energy circuits in a local area of the body, such as a hand, an eye, or a leg, can form local circuits.

"Breakthrough...... Now? ”

Tang Bai glanced at the fox demon girl who was tired of teasing him with his fingers, and was a little hesitant.

Either way, when breaking through, you need to concentrate on controlling the energy, and the induction of the outside world will drop to the freezing point, so it is not an exaggeration to be slaughtered by someone without a safe place or protector.

The guy next to him knew that it was very unreliable at a glance.

Sensing his little eyes, the fox demon girl patted her proud chest and promised: "You can rest assured to break through, it is safe here, and I will protect the road for you." ”

Hearing you say that, I feel even more insecure!

Tang Bai couldn't help muttering.

Closing his eyes and calming his mind, Tang Bai began to mobilize the innate fetal breath in his body to adjust his state.

The time it takes for blood to circulate through the body once is about three minutes, or 180 seconds.

This time is not long, it is not short, but the success or failure of an energy circuit is between these three minutes.

During these three minutes, Tang Bai needed a continuous and steady control of energy.

The energy output cannot be large or small, and must be in line with blood flow.

If there is a slight instability, the circuit will be defective, which will not be reflected in the large arteries, but when the energy circuit passes through the capillaries, there will be a difference.

This is why there are so many perfect circuits in the world, but the talents that appear are not the same, at most similar.

"Started ......"

Sensing that the innate fetal breath in Tang Bai's body was becoming stable, the fox demon girl said softly, her originally casual expression became calm, and if she looked closely, she was actually a little majestic.

It's a pity that Tang Bai didn't see this scene, he was starting to take the first step at this moment.

"Ten percent imprisoned! Fifty percent blockade! ”

The elven secret technique that was not used in the research institute has become a means for him to break through at this moment.

An inexplicable force blocked and imprisoned fifty percent of the innate fetal breath in his body, and on the other hand, another inexplicable force merged into the other fifty percent of the congenital fetal breath, which made this innate fetal breath change dramatically.

Like water, it becomes a flowing rock, increasing its density and stability by several levels.

In this case, Tang Bai became more and more comfortable in controlling the congenital fetal breath.

After getting used to it a little, he took a deep breath and began to condense the innate fetal breath that was free from his body and pour it into his heart, at a speed that was not hurried or slow, exactly the same as the blood flow.

"Well, the first step was a good one."

Concubine Tang nodded lightly and did not disturb Tang Bai.

Many cultivators, when they break through for the first time, have to start over because they are nervous for a while, which causes the innate fetal breath to fluctuate.

However, in this way, the blood vessels become resistant, and it will be much more difficult to break through again.

It's like the difference between walking in the air and walking in water.

No accidents, practice, one step is different, the world is different.

Stretching out his hand to support his cheeks, the little fox looked at Tang Bai quietly, his clear eyes seemed to be able to penetrate his body and see the situation in his body.

The flow rate of the congenital fetal breath is very fast, and at this rate, after three minutes, the congenital fetal breath in Tang Bai's body will be less than one percent.

Tang Bai was not nervous, at this speed, the innate fetal breath in his body was enough to form a perfect energy circuit.

"Energy imprisonment, four into nine."

"Energy imprisonment, four out of eight."

"Energy imprisonment, four into seven."

Tang Bai untied the imprisoned energy in his body little by little, and after a period of familiarity, he had mastered the speed of blood flow, even if the control of the congenital fetal breath had decreased, the impact was not great.

There was no danger, when the congenital fetal breath followed the blood circulation back to the heart again, Tang Bai breathed a sigh of relief and withdrew the remaining congenital fetal breath.

The perfect circuit is still one step away.

The remaining congenital fetal breath is about 10% of the total amount, and after Tang Bai hesitated slightly, he injected it into the heart to form another "heart".

At this point, a perfect congenital fetal breath circuit is formed.

As the "heart" beat for the first time, an inexplicable force emanated, making Tang Bai's eyes dark.

The next moment, Tang Bai found himself in a pitch-black space, and there was a sense of illusion, or emptiness, from his body.

In front of him, something like an information bar appeared out of thin air, and the milky white light made him feel warm.

Two magic loops, one row of information.

That's all there is to the information bar.

After a few glances at the magic circuit, Tang Bai felt a little familiar, and suddenly realized, isn't this the blood circulation system in his body, or the circuit?

[Circuit 1]

[Nature: Blood]

[Level: One Evolution]

[Talents: 1.Magic 2.Fighting Spirit]

[Circuit 2]

[Nature: Congenital fetal breath]

[Completion: 100%]

[Energy Circuit Talent: Perfect Adaptability]

[The energy circuit can also carry one of the following talents, please choose]

[1. Adjustable heart: The movement speed of the energy heart can be adjusted autonomously]

[2. Energy Bullets: Energy can be converted into various types of bullets]

[3. Energy compression: compress the energy in the circuit again]

This is......... What the?

Looking at the three options, Tang Bai squinted slightly, thoughtfully.

When crossing, there was also a system grandfather gift, but it only came out now?

Or will the system grandfather come out when he breaks through?

After thinking about it, according to the current situation, Tang Bai felt that the latter guess was more reliable.

It only occurs when there is a breakthrough......

Tang Bai narrowed his eyes and touched his chin and groaned.

The emergence of this system has two advantages, first, the information is clear.

Even the talent of the circuit requires a little bit of study, experimentation, inquiry, and finally mastery.

And the system directly gives the name, which has actually saved most of the effort, and the other additional talent is completely unexpected.

In fact, compared to the other three additional talents, Tang Bai was more interested in the original perfect adaptability talent.

Although it already has a name, and according to the urine nature of the three options of the system, this talent is directly related to the effect,

Tang Bai was still a little confused about the definition of perfect adaptability.

Is it obsessive-compulsive disorder?

That's not good!