The Strongest Assassin of the Zoldyck Family!

When more than half of the aura in Ron's body was condensed onto his fist, an intense energy naturally emanated. The surrounding plants seemed to be under pressure, and insects hidden in the grass scattered away.

Ron recalled the scene from the original story where Gon participated in Battera's mercenary selection. At that time, Gon hadn't developed any specific Nen abilities, so he simply concentrated his aura into his fist. With a single punch, he caused immense destruction.

It's worth mentioning that when Gon asked Wing how to develop his abilities, Wing said that Enhancers don't need to develop specific abilities—they just need to focus their aura. This point is actually incorrect. The vast majority of Enhancers do develop specific Nen abilities. For example, Phinks's Ripper Cyclotron, Nobunaga's Iai Slash, and Gon later developing Jajanken.

However, deception seems to be Wing's unique teaching method. When Gon and Killua first started learning Nen, Wing also deceived them by fabricating certain concepts. For Wing, these were benevolent lies; he believed that teaching newcomers to Nen in this way would be more effective. The Hunter Association and the Zoldyck family agreed with this—not with the deception per se, but with Wing's teaching ability. Otherwise, they wouldn't have entrusted Gon and Killua's initiation to him.

On the surface, it seemed like Gon and Killua meeting Wing was a coincidence, but in reality, it was all arranged. When Ron watched the original story in his previous life, he had suspected this. Now, having come to this world, he was even more convinced. The instruction of a Nen user is crucial.

Therefore, Maha Zoldyck personally taught Ron, interrupting his seclusion to teach Ron advanced Nen techniques. Given how much the Zoldyck family values Killua, they wouldn't have allowed Wing to teach him if his abilities weren't up to par.

"Zetsu!"

Ron closed all the aura nodes on his body except those on his fist—completely shutting them. It was like a container with only one opening; the water could only flow out from that opening—his fist. The aura on Ron's fist intensified, affecting even the surrounding air.

"Ko!"

Ron used his mind to weave a net that enveloped the aura on his fist. He then controlled the net to continuously shrink, compressing the aura. When it was compressed to a certain degree, it transformed again. A strong oppressive force emanated.

"Bang!"

Under this pressure, the ground sank, forming a concave hemisphere. However, this still hadn't reached Ron's limit. He continued to compress the aura on his fist. Gradually, it became more difficult; Ron felt the strain. But this was exactly what he wanted. By experiencing difficulty, he could make progress. The pressure gave him a clear goal. By moving in this direction, he could elevate his mastery of Ko to another level.

To master Ko, one needs an extremely high level of aura control. Looking at the condensed aura in his hand, Ron suddenly thought of something: Chakra.

Chakra and aura are quite similar in many ways. In the world of Naruto, chakra control is mainly divided into two aspects: shape transformation and nature transformation. Aura is actually similar. Techniques like En, Ten, Shu, Gyo, In, Ken, Ko, Ryu—these can all be considered shape transformations. The stronger one's control, the better one can master the shape transformation of aura.

When one's aura control reaches an extremely high level, fixed terms like Ten, Shu, En, and so on become meaningless. Where the heart goes, the aura follows. With a single thought, one can perfectly manipulate aura. Ryu is the preliminary stage of this state.

Finally, Ron reached his limit—he could no longer compress the aura further. He raised his hand, suddenly releasing control over the aura. An aura bullet compressed to the extreme shot out, heading straight into the ruins opposite him.

"Boom!"

The ground shook incessantly. The abandoned old building collapsed under Ron's attack, with countless fragments flying out. Ron's eyes lit up slightly.

Firstly, after practising Ko with full force like this, Ron found he had improved significantly—much more than in his previous practice sessions. Secondly, through this practice, he discovered that it indirectly enhanced the power of his aura bullets.

"An aura bullet is essentially condensed aura," Ron thought, recalling Naruto's training of the Rasengan and the later development of the Wind Release: Rasenshuriken.

"Physical strength, aura control ability, aura bullets," Ron pondered for a while. "I mainly rely on Nen Beasts; this won't change. The Essence of the Observer's ability is very strong. It would be unwise not to focus my main energy on it. The reason to enhance my own strength is so as not to hold back my Nen Beasts.

"My own strength is divided into three aspects: physical strength, basic and advanced Nen techniques, and aura bullets. Basic and advanced Nen techniques can be summarized as aura control ability. Improving aura control can help enhance physical strength and the power of aura bullets.

"So, from today, I can make improving aura control my main training focus. Physical strength training and aura bullets will be supplementary. This efficiency is the highest.

"Again."

After a brief rest, Ron tried once more.

"Gyo!"

"Zetsu!"

"Ten!"

An aura bullet shot out fiercely. The already ruined building shook once again.

Not far away, some people heard the sound and instinctively looked in that direction.

"What was that sound?"

"A bomb? Or a rocket launcher?"

"Could it be another gang shootout?"

Before the Underworld's mafia families were expelled by the Sky Arena's higher-ups, such shootouts were not uncommon. Where there are people, there are bound to be conflicts of interest. And where there are conflicts of interest, battles erupt.

After finishing his own match, Killua watched a few other contestant's battles but felt they were uninteresting. Hands in his pockets, he left the Sky Arena and returned to his hotel. It wasn't the one Silva had originally booked; Killua had changed to another one. The accommodations were relatively modest because he was short on money now. Compared to lodging, Killua preferred to spend his money on food—especially sweets.

"He is out!"

Sally and Nina's expressions became serious as they followed from a distance. 

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