However, he did not completely disappear. He only moved into Kastro's blind spot and did his best to suppress his own aura.
In the spectator stands, Wing's pupils slightly contracted. "Zetsu?" This was a technique Wing had not yet had the chance to teach Killua. Yet at this moment, Killua actually used it. Wing had already been astonished three times by Killua and Gon. Once was when the two opened their aura nodes and immediately mastered Ten. Another was their performance during the training with his meditation technique. The third time was now.
Whether it was Killua or Gon, without having been taught, both were able to use Zetsu in the arena when facing opponents.
"Zetsu, huh?" But this level is not enough."
At the moment Killua charged at Kastro, Kastro noticed Killua's presence. He glanced back slightly. Killua had thought this attempt would succeed, but when he met Kastro's gaze, he was suddenly startled and quickly retreated, not daring to continue the attack. He widened the distance, took a deep breath, and his expression became more serious. "Astonishing sharpness!" "Sharper than anyone I have assassinated before!"
"Is this the strength of a powerful Nen user? Far stronger than the pressure Hanzou once gave me."
Killua quickly moved again, continuing his attempts. If this were a real assassination, Killua would have turned and fled without looking back. But this was a match. Killua wanted to win for Gon to see. Furthermore, Killua noticed that Ron had arrived at the spectator stands. "I don't believe there's not even a single opportunity."
"There must be a flaw."
Kastro's gaze followed Killua's movements. While Killua was astonished by Kastro's strength, Kastro was also amazed by Killua's talent. "Visible changes. Since the start of the match, Killua has already changed."
Killua's figure disappeared once more.
"Again." This time, Killua got even closer to Kastro. However, before he could actually strike, Kastro noticed him again. The situation on the arena reached a stalemate. Killua kept trying. Kastro, meanwhile, mostly stood in place, barely moving.
Some spectators could not understand and grew dissatisfied. "What are they doing?"
"Why aren't they fighting?" But those who understood the match knew how tense the atmosphere on the stage truly was. "Both are very strong!"
"This is a real battle between the strong!"
Killua's eyes flickered. "I can only use that now." In the next moment, Killua stopped moving. "Rhythm Echo." In an instant, Killua's figure multiplied into more than a dozen, surrounding Kastro from all directions. Each figure looked completely real.
"What is that?" The spectators gasped in astonishment upon seeing this. Hisoka glanced at Ron. "This is your Zoldyck family's unique technique, isn't it? Using it so openly in a place , is that alright?"
Ron shrugged. "Those who would study this can't be controlled." "Those without ability, even if they see it, won't find a countermeasure. Sooner or later, someone would find out."
This technique was not only used by members of the Zoldyck family. Even the Zoldyck family's butlers could use it. Besides, there were other similar abilities in this world. Even if Killua used it in the Heavens Arena, it would not have much impact. That said, when Killua used this technique, it proved he had reached his limit.
Kastro raised an eyebrow slightly. "Not bad, but still not enough." In the next moment, Killua's figures suddenly charged at Kastro. More than a dozen figures attacked Kastro simultaneously. At that moment, Kastro moved. It was as if he was fighting against more than a dozen people by himself. The speed of both their attacks and defenses was extremely fast, far beyond what ordinary eyes could capture. No one could clearly see what was happening between them. They could only hear the sounds. Yet this made the spectators even more excited.
"Good!" "So intense!" "This is the kind of fight worth the ticket price!"
A Rookie Killer watched the scene in the arena and felt a strong sense of fear. "This kid is actually this strong?" Luckily, I didn't get matched with him yesterday. Otherwise, I wouldn't have stood a chance against this kid."
"I don't have Kastro's strength. At that time, I would have lost to this kid. It wouldn't just be embarrassing; it would also add another defeat to my record."
"That's absolutely unacceptable!"
Kastro and Killua's figures kept moving, from one side of the arena to the other, and then back to the center. In an instant, they had clashed countless times. However, Killua found it strange because he could sense that Kastro's true strength should be greater than this. During their exchanges, he had made several mistakes. Yet Kastro seemed to ignore them.
"Is it because this guy's skill level is lacking? Or is there another reason?" Killua could not understand but did not stop. At this stage of the fight, neither of them could stop, like a machine already set in motion. Even if they wanted to retreat or pause, under the opponent's pressure, they had no choice but to keep attacking.
Hisoka's interest waned. This fight was even less interesting to him than Killua and Kastro's earlier warm-up. "Not very exciting. Ron, this arrangement of yours is a bit boring."
Ron ignored Hisoka. "If you're bored, you don't have to watch."
Killua felt his stamina and endurance rapidly depleting. Although the match had not lasted long, the energy consumed far exceeded normal training. It wasn't even in the same category.
Just a short battle felt like training continuously for over a dozen hours. His stamina was already at its limit. Killua's movements also slowed down.
Kastro noticed and slightly slowed his own attack rhythm but still remained somewhat faster than Killua. In this way, he continued pressuring Killua, trying to push him to his true limit or even beyond it.
This was exactly the result Ron wanted to see.