Collision of Dimensional Walls

The Hunter x Hunter world leaks life energy, while this world leaks chakra.

In the Hunter x Hunter world, the leakage is passive; in this world, it is active. If you do not refine excess chakra, there is nothing to leak.

"So, let's try again!"

Suifeng is a man of action. Once an idea takes root in his heart, he naturally has to act on it. First is refining chakra; this step cannot be skipped, nor can it be avoided.

His chakra reserves were already substantial, and in less than half an hour, he reached his body's limit.

Once at the limit, continuing to extract chakra causes the excess to dissipate.

Suifeng closed his eyes, sensing the wisps of dissipating chakra, and attempted to control them, but without success.

Trying to control this chakra purely with consciousness is difficult. After all, this is not a world of superpowers where one can move objects with telekinesis; mental interference with matter is a high-level existence in any world, and he has not reached that level yet.

Even in the Hunter x Hunter world, unless one undergoes rigorous training, those who attempt to gain a Nen Ability through shortcuts like forcing open their aura nodes are all practicing heterodox methods, and most of them die.

Gon and Killua? Please, they are the protagonists, the Children of the Plane; not everyone can be born with such destiny.

Facing the gradually dissipating chakra, Suifeng was not anxious. He is not a Child of the Plane and cannot control this leaking chakra with mere thought. He was prepared for this; he is a ninja, and he has his own chakra.

His fingertips twitched slightly, and a wisp of chakra extended from them, transforming into a gentle breeze that swept toward the dissipating chakra.

Since it was all Suifeng's own chakra, the properties were identical, and there was not the slightest resistance. The next moment, Suifeng formed hand seals, and a ninjutsu was unleashed.

This ninjutsu was not a traditional one, but rather one he developed himself to control chakra.

Come to think of it, he had gathered a massive amount of data on chakra control under the guise of researching the Strength Enhancement Technique. While the Strength Enhancement Technique didn't yield any major breakthroughs, his understanding of chakra control deepened, and by combining it with the techniques of Ten from the four major Nen Ability principles, he developed this technique.

Of course, this was also because the principle of this technique is very simple: release his own chakra and have it rotate around him, using this rotating chakra to pull in and fuse with his dissipating chakra. Like a snowball, it rolls larger and larger—it is essentially a Yin Seal wrapped around his body, outside of his physical form!

Is it impressive? Is it badass? Is it genius? Is it powerful?

Bullshit!

At the beginning, the effect of this technique was excellent, capable of perfectly storing chakra. However, this is an external cycle, not true storage; once it reached a certain volume, it could no longer be maintained.

Yes, a small amount of chakra can be manipulated freely with this technique, but once the volume grows—reaching about a quarter of his internal chakra limit—he has to divert his attention to manipulate this mass of chakra. By the time it reaches half the volume, it is equivalent to performing a technique that consumes half his chakra, and any further than that, he loses control.

Control also has its limits.

If it were truly this simple, just by having high-level chakra control, even without knowing the concepts of Nen Ability, half of the elite Jonin could do what he does, at most lacking his precision.

This method also has a huge drawback: even if you can manipulate it freely, as time passes and more chakra gathers around you, you become a chakra torch, unable to do anything else.

Therefore, this is only the first step. The second step is actually sealing—sealing this massive amount of chakra. Tsunade uses the Yin Seal, while he has his own advantage: he has a hole in his brain.

The complete system of Nen Ability exists within this hole. Through this system, he gained a general direction for manipulating external chakra; this is the first condition.

The second prerequisite is that he knows there is a chakra aggregate in this world called a Tailed Beast.

The third prerequisite is that he learned the Shadow Clone Technique.

The Shadow Clone Technique, a B-rank ninjutsu developed by the Second Hokage, uses chakra to create a physical clone. They can act and fight just like the caster, possess consciousness independent of the original, and upon normal dispelling, the clone's memories and experiences return to the original.

After learning this technique, aside from shouting a curse, Suifeng was completely won over.

This thing doesn't just split chakra; it splits consciousness as well.

Although he learned it, he doesn't know the principle, but everyone who has tried it says it's good.

Why did his Iron Body progress so quickly, yielding results so soon? It was because he learned the Shadow Clone Technique and had his shadow clones beat him with sticks—that is how it was forged.

Now, the shadow clone has a great use, because in essence, the shadow clone is also an aggregate of chakra, and the chakra used is refined from his own body, so there is no issue of rejection.

The shadow clone's consciousness is a part of his own, and it can also perform ninjutsu. Therefore, he can use the shadow clone as a bridge between himself and the external chakra, using the shadow clone as the center to manipulate this overflowing chakra.

The above techniques all fall within the scope of the ninja world; any ninja with strong chakra control, as long as they have this idea and study it, could almost certainly achieve it.

The following technique is a greeting from the dimension next door!

He created a shadow clone, and the clone immediately began forming hand seals, taking control of the external chakra, and then began a series of flashy operations.

Ten, Zetsu, Gyo.

Ten: Stabilize this chakra and wrap it around his body.

Zetsu: Tighten the chakra, slowly pulling it into his body. Note that the shadow clone is inherently a chakra aggregate, and this action connects it to the external chakra.

Gyo: Use Gyo to condense the external chakra at the center of the shadow clone.

A miraculous change occurred.

On the chest of the shadow clone, a tiny black dot, no larger than a needle tip, appeared, then slowly expanded. In a moment, it was the size of a soybean. It continued to expand; as it absorbed more chakra, the black dot gradually took shape, becoming a slowly rotating chakra vortex.

When this vortex expanded to half the size of the shadow clone's body, Suifeng's shadow clone formed hand seals with both hands. The chakra around its body first expanded, then suddenly condensed inward, collapsing!

Ko: An advanced application technique that combines the five techniques of Ten, Zetsu, Ren, Hatsu, and Gyo.

Using Ko, he instantly concentrated all the chakra at once, blasting it into the center of the chakra vortex!

Boom!

The shadow clone dissipated, and the consciousness returned to the original body.

The very moment the consciousness returned to the original body, the blast was already complete.

The chakra vortex began to shrink rapidly, and at the same time, Suifeng felt the connection between his consciousness and the rapidly shrinking chakra vortex.

"Success!" A look of joy finally appeared on his brow.

At this moment, all the chakra he had previously dispersed had been absorbed by the chakra vortex before him. The bombardment was complete, leaving behind a sphere the size of a pigeon egg, half-solid and half-ethereal, with chakra flowing slowly across its surface like a nebula.

He raised his hand, and the sphere, rotating slowly in the air like a drifting nebula, drifted down to hover above his palm.

The sensation was novel; at this moment, the chakra vortex felt like an extension of his own body, responding to his will as easily as an arm or a finger.

Looking closely, at the center of the sphere, the chakra was still rotating slowly in a specific direction, forming a tiny vortex. This was his chakra aggregate, yet it was not a Shadow Clone.

It was a seed he had created by using a Shadow Clone as a medium, fusing knowledge from two different worlds.

This ninjutsu was not yet complete; it was merely a seed. It would require a constant supply of his own chakra and the infusion of his will to finally take shape.

For now, it functioned like an external Yin Seal, capable of storing excess chakra and allowing him to call upon it at any time.

But would he be satisfied with just one Yin Seal? Impossible; he harbored even greater ambitions.

"Since both are aggregates of chakra, could I perhaps create something similar to a Tailed Beast? No, that's not right. Tailed Beasts possess consciousness, and that consciousness didn't emerge from nothingness—it was split from the Ten-Tails. The consciousness of a Shadow Clone is a reflection of the original body; a simple aggregation of chakra cannot create a Tailed Beast. Then, what if I infused it with my will, using the method for creating a Nen Beast?!"