Lu Ziming had never used so much energy at once, even if he was injecting energy into other people's bodies, it was an extremely slow process, and he had never experienced such a one-time explosion before.

If the calculation is not wrong, this energy is enough to shake the big tree in the enclosed space, and even zombies above the third order may not be able to resist the impact of this energy.

Although he is not yet subtle in the use of energy, he has his own opinions on the control and destructive power of energy. The maximum energy output of a third-order firefighter with one punch is only thirty units, and he can easily kill a zombie above the second order with one punch.

He is now a fifth-order super energy, and he is also an energy output, and the output of a hundred units of energy at a time is already the limit, and it shouldn't be a problem to kill a fourth-order zombie with one sword.

The wooden sword simply couldn't withstand a hundred units of energy injection, although knowing this, he had no choice, he didn't have a suitable weapon in his hand, he couldn't use a dagger or arrow as a sword!

His body was violently pulled by the vacuum vortex formed by the sword qi, and he almost didn't stand still, he didn't have any mental preparation in his heart, what exactly did a hundred units of energy output mean, he didn't know before, but he knew it immediately.

He was still immersed in the sharp roaring sword qi, and suddenly felt the energy around him swing, and there was no soft resistance at all, just like a red-hot blade cutting through cheese.

"What's going on", the sword qi did not tear open a larger rift, but completely disappeared into the realm wall.

Before he could understand what was happening, he heard a "click" sound that filled the entire confined space, as if something was breaking. The sound was getting louder and louder, and there was a "click" sound everywhere, and even the grass under his feet was trembling slightly.

"What did you do", did you destroy the balance of the entire space?

I have thought about countless possibilities, but I have not thought that I can split the entire space with one sword. A hundred units of energy is huge, and the power is not to be underestimated, but it has not yet reached the point where it can break the balance, if he doesn't even calculate this, it is not strange that he is trapped here.

The sound of "click" continued, "Could it be that the entire realm wall has collapsed", he didn't panic, it was useless to panic, he was in this space now, if he really destroyed this space completely, even if he didn't count how much energy he used, it was a question whether he could get out alive.

The energy that supports the entire space is huge, and it is not at all comparable to this insignificant energy in his body, although he doesn't know what happened, at this time he has already begun to plan for the worst, maybe when the realm wall completely disappears, he still has hope to escape.

But then the "click" sound suddenly disappeared, and the space was calm again, there was no sound or wind, and it seemed that the qiē just now had never happened.

"What the hell is going on?"

He reached out and touched the invisible realm wall in front of him, what about the realm wall? He took a few steps forward, but still didn't find any energy fluctuations in the realm wall, "the realm wall disappeared", how could this be?

He didn't know why the realm wall had disappeared, maybe it was shattered by the sword qi, maybe it was the energy attack that had an effect, but no matter what, the result gave him hope. It turned out that the attack of the energy sword qi was indeed effective, and the realm wall disappeared under the energy attack of one hundred units, "If all the realm walls are destroyed, will there still be zài in the space?"

A large amount of information continued to pour into his brain, and although he had already envisioned many results in advance, and even considered that the entire space might collapse, he was still a little dazed and at a loss when the realm wall really disappeared.

It's not that his will is not strong enough, but he didn't expect the sword qi to be so sharp, the sword qi that crosses the air, has energy fluctuations that are difficult for ordinary people to detect, and in the end, there is only a trace of vibration in the air, and the killing is invisible.

If you don't have a weapon in your hand, you just mobilize the energy in your body and turn your arm into a long sword, what will happen to the result? Will it be as indestructible as the sword qi produced by a wooden sword?

His old mistakes have been made again, and he is determined to become an engineer, so he likes to do things steadily, but fortunately, there is still a trace of energy in his body, and he is immediately ready to do it and eliminate the doubts in his heart.

"Thorn!"

"Slash!"

"Stab again!"

"Slash again!"

He carried the sword in his hand, feeling the energy in his body mobilize to his arm, and suddenly found that the density of energy gathering on his arm was not enough at all, and the energy was scurrying in his arm. Whether it is a wooden sword made by him or a real sword, the slender sword body and sharp blade can gather energy together, and the sword qi is actually evolved from the use of energy.

This reminded him of the area and pressure he had learned in physics, the larger the area, the smaller the pressure, and vice versa, the smaller the area, the greater the pressure. The same principle can also be applied to sword qi, the sword is just a medium for the use of energy, the sword gathers energy to a line, or a point, the sharper the attack power generated.

As soon as one problem was solved, another question emerged, with the same energy, why the effect of "thorn" and "slash" on the mirror wall is different. The effect of the point "stab" is not as obvious as the line "chop", is there a reason for the mirror wall?

Although he didn't quite understand the reason, he at least understood a truth, as a medium that carries energy, the sword, the sharper the better, the harder the better.

Judging from the effect of breaking the mirror wall just now, one hundred units of energy is not enough to completely break the entire mirror wall, if you want to destroy all the mirror walls at once, you need at least one hundred and twenty units of energy, which is not something that a wooden sword made of tree branches can bear, unless you can accurately control the manipulation of the energy, at the moment of the sword, the sword momentum has been completed, and the sword qi is stimulated.

The sword momentum and the sword qi are one, without the sword momentum, there can be no sword qi, and without the sword qi, the attack power of the sword qi will be fierce, and it is impossible to destroy the target.

Precise manipulation energy requires a long period of training, and although it was also manipulation energy in the past, it was at the macro level, and it was not comparable to the subtle level of manipulation.

Now he can only accurately control one unit of energy, and if there are more, there will be large fluctuations, such as the output of one hundred units of energy just now, and it is difficult to say how much the result is.

The control and grasp of energy is also related to the use of sword qi, less has no effect, it can't break through the mirror wall, more waste is not to say, and it is difficult to control the effect after the sword is released.

However, he was not going to care about these things, to gather enough energy to break through all the mirror walls, the preliminary calculation would take half a year, and in these six months, he couldn't do anything, except to devour the energy of the mirror wall.