Lu Ziming found a new way to practice swords, and also found a new way to kill time, as if he vaguely felt that the thick and thin lines on the ancient scroll were not as simple as he imagined. Those thick lines may represent the posture of the sword, the strength of various parts of the body, etc., while the thin lines in front of the person in the painting may represent the sword energy of the sword, or the strength of the sword.

Perhaps each line on the scroll contained a different meaning, which he did not understand at all, but that did not prevent him from providing him with ammunition to resist emptiness.

Just relying on an ancient scroll to guess and study, from Lu Ziming's point of view, he can't understand it at all, without the master's explanation, he is just a blind man touching an elephant, and can only speculate, conjecture, and ponder ...... based on very little knowledge.

He first thought of the energy in his body, if the energy in his body was the same as that of the Fire and Ice Users, why couldn't he use it as an attack. Although there are differences between them, they are essentially a kind of energy, whether they have not found the right way, or the energy in the body has other uses. He slowly began to sort out how the energy in his body was generated, what were the differences between the energies, and why he was able to pour the energy back into other people's bodies while devouring it.

He deliberately slowed down the speed of combing, for fear that after combing at once, he would never find new ammunition to pass the emptiness of resistance, and he deceived himself slowly and slowly scrutinizing one thing after another, even including every detail.

But the amount of information he has is really pitiful, and soon there is no information to sort out, and he can't come up with any advanced theories that are worth further studying, but it only makes him more sure that the sword qi and the energy in his body are the same, and the sword technique on the ancient scroll must not be the work of that bastard's random graffiti.

How did the sword qi just come about, how can he accurately control the sword qi, slowly recall, carefully peel off bit by bit, experience the feeling just now over and over again, looking for the most subtle differences in the middle, the more difficult it is to find, the more uncharacteristically happy he is, because he finally found another thing for himself, and he doesn't have to face the boundless emptiness with boredom.

However, there is always an end to things, and I don't know how long it took, although he was reluctant, he still found it. Because this is a meaningful and logical reasoning process, it is impossible to turn a blind eye to the correct conclusion, always sink into the wrong conclusion, and always have to face it when it is time to face it, and he still has this bit of courage.

The use of energy in his body was not as simple as he imagined, but he was not discouraged, on the contrary, he was a little happy, the higher the difficulty, the happier he was, and he consumed a lot of time and energy in the continuous pondering, probably this was the most "fulfilling" period of time after he fell into the space, in order to offset the terrifying emptiness.

With this rich time, he gradually understood the movement law of the energy in the body, the sword qi must be combined with the sword momentum, or when using the sword technique, it is necessary to mobilize the energy in the body to cooperate.

These are all his guesses, which can only be explained by "maybe", "probably", and "maybe", and they need to be confirmed by constant practice and practice, so they can get an explanation of their own, so in the end they are still guesses.

Of course, he didn't know the internal rules of the sword qi, in other words, the energy control in his body was still far from reaching the level of commanding like an arm.

When this qiē was over, he had basically mastered the use of sword qi, and the deeper use was not yet within reach, and he had no way to continue to study in depth, so he once again fell into a long state of emptiness, using sword qi mechanically over and over again, until the energy of his physical energy was completely exhausted.

He was sure that sword qi was a kind of use of energy, and what ordinary people could punch in the air and kill people thousands of miles away, these were pure. Without energy, it violates the law of conservation of energy, every qiē is a mythical story, even immortals have to use energy.

As for the masters in those stories who are like a perpetual motion machine, killing a seven-in-seven-out in the enemy formation, he will definitely sneer, it is the result of Yiyin (no way but a typo).

Without the support of energy, he couldn't even emit a trace of sword qi, and now he needed a lot of energy to replenish it, just like he was hungry and wanted to eat.

Looking at the few crystals left on his body, he didn't want to use them now, and set his eyes on the invisible but existing realm. He found one thing for himself again, and that was to devour the energy of the realm wall, the energy of the realm wall was very weak, and devouring it for an hour was not worth the energy in a crystal, but that didn't stop him from devouring the energy of the realm wall, because he needed something to do.

Although the energy of the realm wall is very scarce, it is endless, endless, and cannot be swallowed at all.

As the sword qi became more and more powerful, the energy required was also increasing, although now he could only draw a sword qi, but a sword qi was equivalent to the energy contained in a crystal, and the power of the sword qi could only cut off a branch the thickness of an arm.

The relationship between energy and sword qi seems to be proportional, and the greater the energy output, the greater the power of the sword qi. But there wasn't much energy left in his body, which was no longer enough for him to do large-scale realization, and sometimes he couldn't even gather the energy reserves needed for swordsmanship once a day.

He devoured the energy of the realm wall, and absorbed the ability in the air with the five hearts to one, no matter what he did, he always consumed more than he had reserves, and finally had to give up every day's sword qi cultivation and change to simple sword posture practice.

As more and more energy was stored in his body, he suddenly had a seemingly absurd idea of what would happen if he used his sword qi to attack the realm wall.

He didn't think about the bad consequences of attacking the realm wall, what could be worse than the situation he was in now?

The realm wall is a kind of energy, and the sword qi is also a kind of energy, and when the two energies collide together, will it be like the effect of the sword qi splitting the branches. No one told him the answer, the answer must be found by himself, and with the heart of trying, he waved the wooden sword in his hand, "Stab ......!"

An invisible, but palpable energy fluctuation stabbed out from the wooden sword from the sharp roar, "Boom!" The two energies surged together, and the invisible invisible realm wall was flooded with sparkling ripples, rapidly spreading to the surroundings.

"He!" a gentle force was transmitted from the tip of the sword, as if a real sword had pierced into the water, enveloped in the energy of the realm wall. In the next second, the sparkling ripples on the realm wall disappeared without a trace, as if they had never appeared.

He already had three days of energy in his body to devour, and it was impossible to give up because of one failure, "Come again!"

"Split!"

Still no response, like a stone sinking into the sea.

"Flirt!"

"Again...... , slash!"

"Break it for me!"