On the mountain peak.
Qing Ming conducted several more tests of the Lightning Style: Thunder Prison. Once he fully grasped its damage and chakra consumption, he ceased using the technique.
After taking a brief rest, Qing Ming drew the longsword at his waist.
Next, he planned to practice the Lightning Style: Thunderlight Sword.
According to his plan, now that Lightning Style: Thunder Prison had reached mastery, the chakra he had previously allocated to its practice could now be redirected toward mastering this technique.
As for why he didn't let shadow clones handle the training...
The reason was simple—he wanted to personally test the chakra consumption during practice to gauge its growth rate.
To be fair, in the two days after he initially acquired this technique, he had already managed to get started with it, reaching a proficiency level of lv1 (100/200).
Logically, he already understood its chakra consumption and didn't need further testing.
But reality was more complex than that.
As he had mentioned before, the Lightning Style: Thunderlight Sword was a technique that combined ninjutsu and kenjutsu, making it a hybrid of ninjutsu and taijutsu.
Its growth rate depended not only on his proficiency with kenjutsu but also on his understanding of lightning chakra.
At the time he first began practicing the technique, Lightning Style: Thunder Serpent and Lightning Style: Thunder Prison hadn't yet reached mastery.
The former wasn't a significant concern, as its mastery only marginally increased his capabilities due to his foundation with Lightning Style: Thunderstrike.
But the latter was a different story.
As a B-rank ninjutsu with a high learning curve, mastering it had significantly deepened his comprehension of lightning chakra.
In light of this, it made sense to reassess the technique's consumption and growth rate.
Having made up his mind, Qing Ming began reviewing the content of Lightning Style: Thunderlight Sword and methodically resumed training.
Initially, everything seemed fairly normal; the technique didn't differ much from ordinary kenjutsu.
However, as soon as Qing Ming struck the trunk of a nearby tree, blinding arcs of lightning erupted.
Amidst a crackling sound, a charred slash mark appeared on the tree trunk.
Even after Qing Ming stopped moving, faint currents of electricity could still be seen flickering between the tree and his blade.
This was the essence of Lightning Style: Thunderlight Sword!
When used in combat, this technique not only distracted enemies with bursts of lightning but also paralyzed their nervous systems with electric currents.
Adding in the sheer physical lethality of the blade, a single successful strike would leave the enemy no room for escape.
However, executing this required the wielder to have an acute sense of timing and opportunity.
Qing Ming's Sharingan, with its superior ability to perceive and analyze movements, perfectly compensated for this need.
It was clear that the potential of this technique in Qing Ming's hands far exceeded that of its original creator, Xiao Lei Yingren.
Qing Ming sheathed his blade and pondered for a moment before resuming his practice.
He went through several repetitions, but something continued to feel off—a subtle sense of discomfort, as if this wasn't the right way to train.
Trusting his instincts, Qing Ming decided to stop entirely and think the matter through.
He tapped his fingers against the sword's hilt, his gaze drifting unconsciously.
When his eyes eventually landed on the blade itself, he suddenly realized what was wrong.
The name Lightning Style: Thunderlight Sword made it clear—this was a sword technique.
True, in the world of shinobi, the terms "sword" and "blade" were often used interchangeably.
But they were not entirely the same.
Previously, Qing Ming had been able to seamlessly use techniques like Leaf-Style Kenjutsu and Uchiha-Style Kenjutsu with his longsword because he had already raised their proficiency to high levels.
For these techniques, he could intuitively adapt to different weapons.
Even the Shadow Sword Technique, which was of a lower level, was a custom creation tailored to his combat style, meaning compatibility was never an issue.
But Lightning Style: Thunderlight Sword?
This was a secondhand technique he had learned from someone else, and his proficiency with it was still low.
Training it without adhering to its original requirements would naturally feel awkward.
This hadn't been a problem during his initial attempts when he was merely dabbling. But now, as he committed to full-fledged practice, the issue became immediately apparent.
If he forced himself to continue this way, the proficiency system, combined with his foundation in other techniques, would eventually allow him to adapt. But the efficiency would inevitably take a hit.
And Qing Ming would never tolerate such inefficiency.
The best solution now was to find an actual sword, raise the technique's level with it, and then return to his longsword for rapid adaptation.
This way, he wouldn't waste time or energy.
With this in mind, Qing Ming murmured, "Good thing I kept that sword."
As he spoke, he stowed away his longsword and retrieved a storage scroll from his pouch.
Unfurling the scroll, he formed a hand seal and quietly uttered, "Release!"
In the next moment, a small pile of high-quality ninja tools appeared before him.
These were spoils of war Qing Ming had collected—premium gear he had saved as backups.
From the pile, he selected a gleaming short sword. When he infused it with chakra, arcs of electricity danced along its blade, demonstrating its exceptional chakra conductivity.
Qing Ming swung the short sword a few times, nodding in satisfaction.
And he had every reason to be satisfied—this weapon had once belonged to Xiao Lei Yingren himself.
As his primary weapon, it was naturally well-suited for techniques like Lightning Style: Thunderlight Sword.
Qing Ming resealed the remaining ninja tools into the scroll before resuming practice with the short sword.
Sure enough, the awkward feeling was gone.
Qing Ming practiced the technique over a dozen times before pausing to evaluate.
After assessing the chakra consumption and proficiency growth rate, he concluded that every 100 chakra points used would result in a 1-point increase in proficiency.
By allocating the 89,000 chakra points previously used for Lightning Style: Thunder Prison, he estimated a daily gain of 890 proficiency points.
At this rate, he could advance to lv5 in just four days, achieving a qualitative transformation. Within 16 more days, he could reach lv7 (0/0) mastery.
A total of 20 days to master a B-rank technique might not be the fastest pace, but it was far from slow.
With this plan in mind, Qing Ming crossed his fingers into the "Ram" seal and cast the Multi-Shadow Clone Technique.
With a puff of chakra-infused smoke, six shadow clones appeared before him.
Qing Ming handed the short sword to one of them and tasked it with training in Lightning Style: Thunderlight Sword.
He then assigned specific ninjutsu training to the remaining five clones.
Finally, Qing Ming returned to his previous training spot, resuming his practice of Mystical Palm Technique and Reflection Heart Technique. While strengthening his body, he also continued advancing the evolution of his Sharingan.
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