Lu Ziming has never used so much energy at once. Even when injecting energy into others, it is an extremely slow process. He has never experienced such a one-time outbreak before.

If the calculation is correct, this energy is enough to shake the big trees in the closed space. Even the zombies above the third order may not be able to resist the impact of this energy.

Although he can not achieve subtlety in the use of energy, he has his own views on the control and destructive power of energy. The maximum energy output of a third-order fireman's fist is only 30 units. He can easily kill a zombie above second-order with one fist.

He is now the fifth level of super energy, which is also the energy output. The energy output of 100 units at a time is already the limit. Killing the fourth level zombie with one sword should not be a problem.

The wooden sword can't bear 100 units of energy. Although he knows this, he has no choice. He doesn't have a suitable weapon in his hand. He can't use a dagger or arrow as a sword!

His body was suddenly pulled by the vacuum vortex formed by the sword Qi, and he almost didn't stop. He didn't have any mental preparation at all. He didn't know what 100 units of energy output meant before, but he knew it immediately.

Still immersed in the sharp roaring sword spirit, he suddenly felt the energy swing around him. There was no soft resistance feeling at all, just like a red sharp blade across the cheese.

"What's the matter?" sword Qi didn't tear a bigger crack, but completely disappeared in the boundary wall.

I didn't understand what happened. Then I heard a "click" sound, which filled the whole confined space as if something was breaking. The sound is getting louder and louder. There is a "click" sound everywhere, and even the grass under your feet is trembling slightly.

"What have you done" has destroyed the balance of the whole space.

I thought about countless possibilities, but I didn't think that I could split the whole space with one sword. The energy of 100 units is huge, and the power can't be underestimated, but it's not enough to break the balance. If he doesn't even calculate this, it's not surprising that he's trapped here.

The sound of "click" continues. "Is it the collapse of the whole boundary wall?" he doesn't panic. It's useless to panic. He is now in this space. If he really completely destroys this space, even if he doesn't calculate how much energy he uses, whether he can go out alive is a problem.

The energy supporting the whole space is huge, which is not comparable to this insignificant energy in his body. Although he doesn't know what happened, he has begun to make the worst plan at this time. Maybe he still hopes to escape when the boundary wall disappears completely.

But then the "click" sound suddenly disappeared, and the space returned to calm again. There was no sound or wind. It seemed that everything just had never happened.

"What happened?"

He reached out to touch the invisible boundary wall in front of him. What about the boundary wall? He took a few more steps, but he still didn't find the energy fluctuation of the boundary wall. "The boundary wall disappeared". How could this happen?

He didn't know why the boundary wall disappeared. Maybe it was broken by the sword Qi, or the energy attack had an effect. Anyway, the result made him see hope. Facts have proved that the attack of energy sword Qi is indeed effective. The boundary wall disappears under the attack of 100 units of energy. "If all the boundary walls are destroyed, will space still exist?"

A lot of information poured into the brain. Although many results had been envisaged in advance, and even considered that the whole space might collapse, he was still a little at a loss when the boundary wall really disappeared.

This is not that his will is not strong enough, but that he didn't expect the sword Qi to be so sharp. The sword Qi across the air has energy fluctuations that ordinary people can't detect. Finally, there is only a vibration in the air, which is killing people invisibly.

If there is no weapon in hand, what will happen if we only mobilize the energy in the body and turn the arm into a long sword? Will it be as invincible as the sword Qi produced by wooden sword.

He has made another mistake. He is determined to become an engineer. He likes things to be rooted and stable. Fortunately, there is still a trace of energy in his body. He is ready to start an experiment immediately to eliminate his doubts.

"Thorn!"

"Cut!"

"Stab again!"

"Cut again!"

With a sword in his hand, he felt the energy in his body transferred to his arm. Suddenly, he found that the density of energy gathered on his arm was not enough, and the energy ran around in his arm. Whether it's a wooden sword made by him or a real sword, the slender body and sharp blade can gather energy together. The sword Qi is actually evolved from the use of energy.

This reminds him of the area and pressure in physics. The larger the area, the smaller the pressure. On the contrary, the smaller the area, the greater the pressure. The same principle can also be applied to the sword Qi. The sword is just a medium for the use of energy. The sword gathers energy to a line or point, and the sharper the attack power is.

As soon as one problem is solved, another problem emerges. With the same energy, why do "stabbing" and "cutting" have different effects on the mirror wall. The effect of "stabbing" is not as obvious as that of "cutting". Is there any reason for the mirror wall?

Although he didn't quite understand the reason, he at least understood one truth. As a medium carrying energy - sword, the sharper, the harder, the better.

Judging from the effect of breaking the mirror wall just now, 100 units of energy is not enough to completely break the whole mirror wall. If you want to destroy all the mirror wall at once, you need at least about 120 units of energy, which can not be borne by a wooden sword cut from a branch, unless you can accurately control the manipulation of energy and inject energy when the sword is ready at the moment of sword, And excite the sword Qi.

Sword potential and sword Qi are one. Without sword potential, there can be no sword Qi. With sword Qi and without sword potential, the attack power of sword Qi will be fierce, and it is even more impossible to destroy the target.

Precise manipulation of energy requires a long time of training. Although it was also manipulation energy in the past, it was at the macro level and could not be compared with micro manipulation.

Now he can only accurately control the energy of one unit, and there will be large fluctuations when there are more. For example, he just output 100 units of energy, and it is difficult to tell how much the result is.

The control and grasp of energy are also related to the use of sword Qi. There is no effect less, you can't break the mirror wall, more waste, and it's difficult to control the effect after the sword.

However, he is prepared not to care about these things. He needs to gather enough energy to break all the mirror walls. The preliminary calculation takes half a year. In this half a year, he can't do anything except devour the energy of the mirror wall.