Lightning Tempering of the Body (Please Follow and Favorite!)

Inside a typical Baroque-style library, a blond boy sat at a massive wooden table in the center, quietly flipping through the book in his hands.

European classical-style ceilings and corridors, antique wall-mounted bookshelves, and rows upon rows of densely packed shelves formed the main structure of the library.

"Thank you, Alfred." After accepting the fruit and hot tea handed over by the old butler, Kyle once again immersed himself in the world of magic.

Two weeks had passed without him noticing since Kyle arrived at this castle in the Alps.

During that time, Kyle had learned quite a few things from the Old Demon King.

However, since Kyle had no foundation in magic before this, aside from the old bat's Sectumsempra, everything he knew consisted of miscellaneous ninjutsu he had cobbled together himself.

So, all he could learn from Grindelwald was some very basic theoretical knowledge.

For Grindelwald, regarded as one of the most powerful Dark wizards in history, serving as a magical tutor for a young wizard was truly a waste of his talents.

Yet Grindelwald, engrossed in raising a child, actually enjoyed it.

At the same time, Grindelwald was astonished by Kyle's talent.

For European and American wizards accustomed to using wands, wandless casting was an exceptionally profound casting technique.

Skillful wandless casting allowed wizards to use the spells they needed more quickly and nimbly.

In battle, even after being disarmed of their wands, wizards who had mastered wandless casting could keep fighting and launch lethal counterattacks that caught their opponents off guard.

Kyle's self-created wandless magic—the Rasengan—gave Grindelwald a slight surprise.

With his vast experience and broad perspective, ordinary magic could not stir the slightest ripple in his heart.

And the Rasengan counted as no ordinary magic.

Besides the Rasengan, many of Kyle's spells that remained only at the conceptual stage also brought Grindelwald plenty of surprises. For example, Lightning Release: Chidori, which had been successfully cast once but had severely injured Kyle himself.

Burning out an arm in exchange for a single-target attack that was not particularly fierce—the cost and reward were completely disproportionate.

Among the Dark Arts Grindelwald knew, there were no fewer than ten spells that could grant immense power in exchange for sacrificing an arm.

But Chidori could not be viewed from such a simple perspective.

It was a key, one that unlocked all subsequent Lightning Release ninjutsu.

If he could successfully master Chidori without being burned by its intense electric current, then Chidori's coating effect could extend from the palm to the entire arm, or even the whole body.

That was Chidori's derivative ninjutsu—Chidori Stream.

Based on Chidori Stream, perhaps he could further develop a Lightning Style Armor like the Raikage's, one that comprehensively enhanced attack, speed, and defense.

Kyle really wanted to know what would happen when a frail, low-defense wizard faced a hulking tank capable of going head-to-head with the Eight-Tails after activating Lightning Style Armor—and this tank also had mobility skills and high burst damage...

Ahem, why did that sound a little like Honor of Kings?

Anyway, just get the idea.

If he could master Lightning Style Armor, Kyle really wanted to know whether any wizard could react before being killed by his Lightning Cutter and Hell Stab.

Grindelwald was also deeply interested in the Lightning Style Armor Kyle had described.

However, the vast majority of magic required a medium to cast. Even if it was wandless magic, that did not mean no medium was needed during the casting process.

The medium for Lightning Style Armor was the caster's own body. If the caster could not withstand that incomparably violent lightning, then forcibly casting Lightning Style Armor would most likely result in—

Being turned into a pile of charred remains unrecognizable even to one's parents.

Of course, certain special magic could isolate the effects of lightning.

But in that case, with Lightning Style Armor unable to act upon the human body, it could not bring the caster's body the greatest possible enhancement.

At most, it would be a somewhat tougher turtle shell. Against physical attacks, it could only provide an effect similar to thorn armor.

Grindelwald's suggestion to Kyle was to start with the tiniest currents, allowing his body to be strengthened through the tempering of electricity and gradually adapt to lightning.

Of course, this process was far from simple.

The people of the Harry Potter world were, after all, vastly different in constitution from the overpowered freaks in Naruto and One Piece, those two major mainstream series.

No matter how much wizards improved their resistance to lightning, they could never match Sasuke and the Raikage—or some god who ate the Rumble-Rumble Fruit and then got beaten senseless by a rubber man.

So, aside from tempering his body with lightning, he needed other magic to assist in strengthening it.

That was why Kyle spent all day buried in the castle library, searching through materials.

Kyle irritably closed the thick book before him and stretched.

He had spent most of the afternoon in the library looking through magical books related to physical enhancement, and his gains had been quite substantial.

It had just taken a bit too long.

Compared to theoretical study, Kyle felt he was better at learning through practice.

After downing the afternoon tea Alfred had brought him in one gulp, Kyle lowered his head and looked at his fingertips, tentatively gathering a small amount of electrical charge.

The faint static current made his fingers tingle and numb, causing Kyle to pull his hand back awkwardly and shake it.

Kyle carefully adjusted the current's strength, gradually controlling the lightning as it spread across his entire body. Of course, it was limited to the surface of his body—he was not reckless enough to give his internal organs electric therapy.

Summoning a curtain of water as a mirror, Kyle looked at himself in the reflection. Good lord, every strand of his hair stood straight up. Hair rising in fury probably described his current appearance.

After fiddling with it for a while, his hair finally stopped standing on end.

Otherwise, if his hair blew up every time he activated lightning body tempering, how was he supposed to maintain the tempering state for long periods in everyday life?

After undergoing electric therapy for a while, Kyle felt the fatigue from sitting in one position reading for so long—the soreness in his waist and back—vanish completely.

As for an increase in physical strength, he had not been receiving electric therapy for long enough to see any effect at all.

But since the current could eliminate fatigue, it should be working, right?

And electric stimulation could increase cellular activity, enhancing the user's physical abilities while active, just like how Sasuke caught up to Rock Lee's speed in only one day...

Kyle felt nothing at all and did not know whether the stimulation was simply not strong enough.

The lightning intensity Kyle was currently using to stimulate his body was the weakest current he could control. Raising it even slightly made his body feel waves of stabbing pain.

He had to adapt to this current strength before he could slowly increase it.

This was something that required a great deal of time, but Kyle's actual physical age was only eleven, so he was not short on time.

Moreover, he could use potions during this process to help improve his physical condition. It would definitely be much faster than relying solely on lightning body tempering to increase his lightning resistance.

Another point was that the lightning used to maintain body tempering consumed his magic power. With his reserves, the consumption rate for maintaining such a low-intensity current was even slower than his recovery rate.

If he could maintain lightning body tempering even while sleeping, then he could train twenty-four hours a day, without pause.

As long as he was given seven or eight years...

Back then, Might Guy nearly kicked his way into the ending with one kick. I, Kyle Grindelwald, kicking Voldemort to death with one kick would be no problem.