In the end, despite feeling deep down that it was impossible, Yuya clenched his teeth and swallowed the strange fruit anyway.
One second…
Two seconds…
Nothing happened.
"There doesn't seem to be any poison," Yuya muttered, a trace of disappointment appearing on his face. "But it looks like… no special power either."
He stood there quietly, unable to determine what kind of ability that fruit might have given him. After all, he had been in this world for a long time now, and many memories from before had already grown hazy.
Since he still hadn't sensed anything unusual, it seemed more and more likely that it had simply been a bizarre-looking fruit, nothing more.
"Forget it."
Shaking his head, Yuya returned to the wooden post he used for training. He lit the lamp and prepared to begin his usual routine—five hundred straight punches.
However, just as he clenched his fist and prepared to strike the post, his expression suddenly changed.
"What… is this?!"
At that moment, he clearly felt a faint movement within his chakra. Almost simultaneously, an extremely thin halo of white light appeared around his fist.
The realization struck him instantly.
Excitement flooded his face, impossible to hide.
"Don't tell me… this is the power from that fruit?"
"Wait—this white glow… it feels familiar. Could it be…?"
His eyes widened in disbelief, as if he had been struck by an unimaginable stroke of fortune. The white aura was weak—barely visible—but there was no mistaking it.
Without hesitation, Yuya swung his fist at the wooden post.
Buzz—!
Just before his fist made contact, the faint white aura suddenly shattered outward.
Crack!
A barely audible sound rang out, like ice or glass breaking. Countless fine fractures spread outward into the air itself.
It was eerie.
The air seemed to turn into a mirror—then shatter.
In the next instant, a violent vibrational force surged forward, slamming into the wooden post that already bore a deep indentation from Yuya's punch.
Crack!!
The post snapped cleanly in two at the point of impact.
Yuya withdrew his fist, no longer able to suppress his joy.
There was no doubt about it.
This power—was vibration itself.
Not some external artifact or foreign fruit, but a chakra-based ability that allowed him to release devastating shockwaves. Whether through the air, the ground, or objects, it generated pure vibration. If developed to the extreme, it possessed terrifying destructive potential.
At this moment, Yuya didn't even bother questioning why such a power had manifested in the ninja world. He simply stared at the faint white glow around his fist, excitement written all over his face.
With this ability, even if he couldn't master ninjutsu—what did that matter?!
It took a long while before Yuya finally calmed down.
"Still… this power isn't exactly the same as what I imagined."
Frowning slightly in thought, he walked over to a nearby tree. Since the wooden post had already been destroyed, this tree would have to serve as his new test target.
"Hah!"
With a focused breath, Yuya clenched his fist.
Buzz—!!
The white light appeared once again, though dim and unstable.
The next instant, he threw his punch forward.
Boom!
His fist stopped several inches short of the tree trunk, never actually making contact—yet the sensation that returned to him was as though he had struck solid wood.
That was the essence of the technique: using vibration to treat the air itself as a medium, delivering force without physical contact. With enough development, such power could even shatter space itself.
Crack!!
Thin fractures spread outward through the air, giving the illusion that space itself had cracked.
Yet those fractures were extremely faint.
The tree—thick enough that it would take two people to wrap their arms around—only trembled slightly, a few leaves drifting down.
"Tch… as expected. I can't just destroy everything with one punch right after awakening it."
Yuya nodded calmly, a strange light flickering in his eyes.
Because during that attack, he had clearly felt it—
His chakra had been consumed, albeit by an extremely small amount.
"So… this power consumes chakra."
"Does that mean this ability has adapted to this world… becoming something like a Kekkei Genkai?"
With that question in mind, Yuya began running more detailed tests.
After some time, he finally gained a clear understanding of his power.
Yuya named it:
Vibration Release, a Kekkei Genkai.
It allowed his punches, taijutsu strikes, and even thrown weapons like kunai or shuriken to carry vibrational force.
However, the strength of those vibrations was directly tied to his physical body.
In simple terms—
The stronger his body,
the stronger the vibrations he could unleash.
If Yuya were somehow able to open the Eighth Gate: Gate of Death, entering the Gate of Death, then shattering the moon with a single punch wouldn't be impossible.
In addition, while vibration consumed chakra, the amount was negligible.
The chakra cost was far lower than even a D-rank ninjutsu. Even with Yuya's poor chakra reserves, using it placed almost no burden on him.
In other words, chakra was no longer his main concern.
What truly mattered was strengthening his body and mastering taijutsu.
The stronger his taijutsu,
the greater the vibration he could release.
At present, his punch could only make a large tree tremble and shake off a few leaves. Even shattering a C-rank ninjutsu would be difficult.
This level was far from satisfactory.
He needed to become stronger.
"There are plenty of forbidden techniques and secret arts that strengthen the body… Sage Mode… monstrous strength control… the Third Raikage's Lightning Release Body Technique… and the Eight Gates…"
Each thought filled his eyes with hope—only for him to let out a helpless laugh.
He had none of them. And obtaining any would be extremely difficult.
In the end, Yuya pushed those thoughts aside.
For now, the only thing he could do was continue training relentlessly, strengthening his body step by step. Once he became strong enough, he could pursue those techniques later.
Just as he was about to resume his training—
A sudden flash of insight struck his mind.