"Yes, you can, try it first!" Thinking of this, Ye Yifan immediately decided to give it a try, anyway, he had a lot of surplus vitality as a supplement, and he was not afraid of what damage this attempt would cause to his body.

After making a decision, Ye Yifan began to mobilize energy from the brain nucleus and inject it into his body.

Because it was the first time to try, Ye Yifan was still relatively conservative, and the energy he mobilized was the previous reserve of the brain nucleus, and many of them were crystal energy that Ye Yifan "transported" from the castle, and then sent it back to the castle at this time, it can be regarded as returning to the original owner!

In the process of sending these energies into his body, Ye Yifan did not encounter any trouble, and it was completed very smoothly.

Immediately afterwards, Ye Yifan tried to send the internal force in the dantian into the castle, which was the first time he had done this kind of thing. Previously, Ye Yifan had been mobilizing crystal energy from the castle, ** for internal force, to supplement his own consumption. He has never tried to use his internal force as the crystal energy of the castle, after all, his internal force has always been beyond his means, and there is no need to do that.

But now, the energy drawn from the outside world by the brain nucleus on Ye Yifan's forehead is very large, and the refining efficiency is also extremely amazing, even making him feel that the energy is about to reach saturation, and he has to think of another way to solve the problem of energy reserves. The crystal energy reserve space in the castle seems to be unlimited, and it is naturally the best choice to store this energy.

"Hey! The internal force can also be ** crystal energy, it seems that this method is really feasible!" When Ye Yifan tried to send the internal force in the dantian into the castle in his mind, he was pleasantly surprised to find that the crystal energy reserves in the castle were actually increasing, although it was only one line faster than the usual increase rate, but Ye Yifan was keenly aware of this.

"Come again!" Seeing this, Ye Yifan immediately increased the amount of internal force.

"Hehe, the crystal energy reserves in the castle have increased by 15 units, and I have used about one-sixth of the internal force, so if all the internal energy in my dantian is sent into the castle, it should be able to increase the crystal energy reserves by about 100 units. Ye Yifan quickly came to this conclusion.

"Try to see the energy mobilized from the brain core!" Then, Ye Yifan began to try to send the part of the energy transferred from the brain core into the castle.

"Buzz!"

As Ye Yifan sent that energy into the castle, he was surprised to find that the latter's crystal energy reserves had increased by 20 units all at once.

"Huh, why is there so much? The part of the energy I just mobilized only accounts for about two percent of the dantian, but I didn't expect that it can directly increase the crystal energy by 20 units, could it be said that this energy is more advanced? It is also said that because they have been recompressed and tempered by the brain nucleus, there is more energy in it?" Ye Yifan was also a little confused at this time.

However, doubts are doubts, Ye Yifan's movements were not affected in any way, he carefully sensed the changes in the ** body, and found that he did not suffer any damage, so he immediately increased the amount of energy delivery, and constantly transported the energy in the brain nucleus to the dantian, and then did not ** for internal force, and was directly sent into the castle.

"Haha, in this way, I'm afraid I won't be able to start building the castle in a few days!" Seeing the crystal energy reserves in the castle in his mind soaring, Ye Yifan thought excitedly.

"Continue!" I have to say that the speed at which Ye Yifan's brain core refines the power of the Hidden Star is so amazing that he is driving full horsepower to transport, and he can't keep up, and the energy in the brain core has been in a state of saturation.

In this case, Yan Tuo and the others only felt that the energy around their bodies had become much weaker, and the suppression of the crowd had also been reduced a lot, and their physical exertion had suddenly decreased, so that if Yan Tuo and the others started to move forward again, their speed would also be increased accordingly! Compared with the normal situation, this increase was about ten percent.

Although it was only ten percent, it was enough to surprise Tatuo, but he knew very well that walking in the hidden space or even simply staying in it would be suppressed by the energy in it, which was the main reason why most people could not stay in the hidden space for a long time.

Now that the pressure on everyone is reduced by 10%, it means not only that the speed of rushing is increased by 10%, but the time spent in the hidden space can also be increased by 10%, which is quite amazing.

After discovering this, Yan Tuo is no longer worried that Ye Yifan will encounter danger, and he can absorb so much energy without any scruples, probably because of Ye Yifan's special ability, anyway, he has always behaved very demonic, no matter what he does, it is surprising, although his behavior at this time is more **, but it can be regarded as "reasonable". Therefore, Langtuo simply ordered everyone to set off again, taking this opportunity to speed up and move forward, so as to arrive at the first stop in the plan as soon as possible.

At the same time, Ye Yifan has been busy, and he doesn't have to worry about the brain nucleus absorbing the power of the hidden star from the outside world, it belongs to the instinct of the brain nucleus, and it can be done well without being supervised by others. However, how to transfer the energy that has been refined in the brain core to the castle in the mind has become a big problem.

Ye Yifan had to do it very hard to be able to complete this, he mobilized the energy in his brain nucleus, sent it into the dantian, and then transferred it to the castle in his mind, went around in a big circle, and had to pass through a lot of places on the way, including Ye Yifan's meridians and dantian, so he had to be careful.

"How can we build a 'highway'?" At this time, the previous thought appeared in Ye Yifan's mind again.

"If that's the case, then we can mobilize energy from the brain nucleus and send it to the castle faster!"

Speaking of which, at this time, even if Ye Yifan concentrates his full concentration, he can only complete the transmission every ten minutes, and the energy transported is about equivalent to 30 units of crystal energy, that is to say, his transportation efficiency is 3 units of crystal energy per minute, although the conversion to the income of the whole day is enough to have 4320 units of crystal energy, which does seem to be a lot, but don't forget that it is impossible for Ye Yifan to stay in the hidden space every day, let alone maintain the state of transmitting energy all the time, so the role that can be played in the end is not too big.

However, if the speed of "transportation" can be accelerated, according to the speed at which the brain nucleus absorbs the power of the hidden star and the refining efficiency, there is still considerable potential to be tapped, and Ye Yifan estimates that it should be able to reach about 10 units of crystal energy per minute.

However, it is necessary to connect the brain core to the castle and create a passage that is both short and wide enough, otherwise it will be difficult to achieve the most perfect efficiency, and it will inevitably be affected.

And the absorption rate of the brain nucleus can reach such an astonishing level is also because the energy in the hidden space is too abundant. But it is impossible to let the castle absorb directly, not to mention that the castle's absorption speed is limited, just the violent special surname of the power of the hidden star makes the castle unrefining!

After the brain core is refined, and then the energy is transported into the castle, it is equivalent to directly becoming a crystal energy reserve, and the castle does not need to do anything at all, so it can improve efficiency without any scruples.

"It seems that we have to try to create a channel in the brain...... Hmm, by the way, don't move your brain, just connect the two meridian channels on your neck, this method shouldn't be too damaging to your body, and with surplus vitality as a supplement, it's completely easy to do! Well, that's it!" Ye Yifan thought about it and finally decided.

As soon as he thought of it, Ye Yifan immediately began to try.

Previously, Ye Yifan planned to establish a channel directly in the brain, but considering that the structure of the brain is relatively delicate and extremely susceptible to damage, he has not made a final decision and delayed.

This time, Ye Yifan thought of a compromise solution, that is, to bypass the brain and use the two channels that existed before as the basis to carry out small-scale transformation on the outside of the brain to connect the two channels. Among them, the brain nucleus can be directly connected with the dantian, and the castle in the mind can also be connected with the dantian, so that although the two meridian channels that establish the connection are not connected to each other, they are gathered together at the neck, and the distance between the two sides is not far, if Ye Yifan can communicate with it, then he can save a lot of travel and mobilize energy directly from the brain core into the castle, and at the same time, it will be easier to mobilize it in turn.

Speaking of which, if the crystal energy is mobilized from the castle into the body, ** is the internal force, and then transported to the brain nucleus, the efficiency will naturally be much higher, and it can even be continuously transported. After all, Ye Yifan began to mobilize crystal energy from it soon after he got the castle to speed up his ** speed. The adaptability of the meridians in his body and the dantian to the crystal energy in the castle is still relatively strong, and the speed is also very fast, and there is almost no hindrance.

In this case, when Ye Yifan wanted to mobilize crystal energy from the castle to enter the brain core, he could even directly establish a channel for crystal energy to use, and the efficiency was naturally very high, and it could even reach a transmission speed of hundreds of crystal energy per minute.

However, if the energy in the brain core is reversed into the castle, it is completely different, and there are many aspects that need to be considered, such as the damage of those energies to the meridians and dantian, as well as the constraints along the way, etc.

Therefore, this conveying efficiency is naturally relatively slow, so that on average, it can only transport 3 units of crystal energy per minute.

"Click!"

When Ye Yifan began to try to connect the two meridian channels around his neck, he really suffered a huge injury, and directly started to do it on the meridians, if it was other martial arts cultivators, he would definitely not do it if he died, fortunately, Ye Yifan had a lot of surplus vitality to consume, so he dared to take such a risk! )