Vanishing Rasengan

"Done... Is this..."

"Is this Sasuke's signature move, Chidori?"

He gazed at the raging current of electricity condensed in his left hand.

Yu felt the powerful Lightning Release chakra stimulating and activating every cell in his body.

Whoosh!!

As the words left his mouth, Yu's figure became a streak of lightning and vanished from where he stood.

Boom!!

In the blink of an eye, a thunderous explosion rang out, and Yu's figure reappeared.

The large tree ten-odd meters ahead had been blasted in half by the Chidori in his hand, which still crackled with electricity!

"That's powerful..."

The raging current of electricity in his hand gradually faded.

Looking at the immense destruction the Chidori had caused, Yu couldn't help but marvel.

But when he felt that he had used up more than half his chakra in an instant, a wry smile appeared on his face.

"Still, the chakra cost is more than an ordinary Genin could handle."

Although he had broken through to Genin-level chakra reserves,

and the String-String Fruit's abilities had transformed him so that he was no longer an ordinary human, giving him several times as much chakra as a regular Genin,

even so, Chidori—a high-level Lightning Release ninjutsu on the level of a forbidden technique—had still consumed more than half his chakra in one go.

After all, even Uchiha Sasuke, who fought Gaara during the Chunin Ninja Exams in the original story, could only use Chidori twice a day.

"Tsk, tsk, tsk..."

"What extraordinary talent and willpower..."

Seeing Yu's outstanding talent and astonishing willpower, the Demon clicked his tongue in admiration. "I'm starting to like you a little..."

"Like me? Give me a break..."

"Didn't you say the other day that you were going to eat my soul?"

Hearing the Demon's alluring, bewitching words in his ear, Yu's wry smile deepened. He wasn't stupid enough to take the Demon's words at face value.

"Hehehe... That depends on whether you can survive in this world."

At Yu's words, the Demon burst into laughter. "I might as well tell you the truth. You're not the first host in this world to awaken me."

"The few guys before you were just too useless. Even after I gave them the Devil Law, they still ended up getting killed."

"So after they died, I simply ate their souls... Thinking back, their taste was absolutely revolting..."

With an incredibly sexy, alluring voice and tone, the Demon spoke words that made one's blood run cold. He continued to chuckle in Yu's ear. "Don't doubt it. There really are people this useless in the world, and more than just one or two."

"So keep training, and do your best to survive in this world!"

After saying that,

the Demon's voice gradually faded away,

as if he had fallen asleep once again.

"I see..."

"Looks like there were a few even unluckier guys before me..."

After hearing the Demon's words, Yu murmured to himself where he stood.

He couldn't help silently mourning for the poor fellows whose souls the Demon had devoured.

"But if that's the case..."

"Then I definitely can't let my guard down!"

Turning his attention back to the world around him, Yu seemed to have been spurred on by the Demon's words. His gaze grew even more resolute.

"The Ninja Academy entrance ceremony is in three days."

"I need to finish one more ninjutsu before then, at least..."

Feeling most of his chakra gradually recover,

Yu gritted his teeth and gathered all the chakra in his body into the palm of his right hand, condensing it furiously.

"I've already completed the first three stages of training."

"I've almost used up all my chakra today. There's only the final stage left! It all comes down to this!"

As Yu focused intently,

blue chakra gathered in the palm of his right hand.

Countless violent chakra whirlwinds formed, and a sphere glowing with pale blue chakra gradually took shape in his hand.

That was right.

What Yu was training next

was the signature ninjutsu of the Fourth Hokage, the Yellow Flash of the Ninja World, Minato Namikaze—the Rasengan.

The original story had already explained the method and principles behind training the Rasengan in great detail.

Over the past two months,

aside from developing the String-String Fruit's abilities and training in Taijutsu, Yu had already successfully completed the first three stages of Rasengan training.

So today, Yu wasn't just going to learn Chidori. He was going to learn the Rasengan too, mastering the signature techniques of Sasuke and Naruto, the two protagonists of the original story, in one fell swoop!

First of all, the Rasengan was a hand-seal-less ninjutsu.

It was extremely well suited to a ninja like Yu, who would fight at high speed in the future.

It was a powerful A-rank ninjutsu developed by the Fourth Hokage, Minato Namikaze, inspired by the Tailed Beast Bomb.

Anyone who had watched Naruto would probably think of Flying Thunder God and spinning orbs when they thought of the Fourth Hokage, Minato Namikaze.

But in fact, the Fourth Hokage didn't only know Flying Thunder God and how to make spinning orbs.

His chakra had three natures—Lightning, Wind, and Fire—and he knew many mainstream ninjutsu, as well as Mount Myoboku's Toad Sage Art.

But Minato Namikaze's fighting style was extremely fast. Hand Seals were a waste of time to him, so he rarely used other ninjutsu.

Although Yu didn't yet have the Fourth Hokage's Flying Thunder God Technique, a Space-Time Ninjutsu that was practically a cheat,

the combat style he had planned for himself—whether it involved combining Taijutsu with the String-String Fruit's fast-activating abilities or fighting with Human Puppets made from the Devil Fruit—meant that most mainstream ninjutsu in the Ninja World that required Hand Seals were already unsuited to him.

So Yu also wanted to try building on the Rasengan, a hand-seal-less ninjutsu.

He wanted to infuse it with his own chakra nature transformation and create a powerful ninjutsu of his own.

However, until he reached the level of an elite Jonin, Yu had no way to infuse the Rasengan with chakra nature transformation.

"Success!"

Through Yu's unrelenting efforts,

a sphere of light, constantly radiating blue chakra whirlwinds, finally appeared in the palm of his right hand.

"Strange..."

"Why does this Rasengan feel different from the protagonist Naruto's?"

Without even having time to savor his excitement, Yu looked at the Rasengan he had successfully formed in his hand.

He had a feeling it was different from the Rasengan used by the protagonist Naruto Uzumaki in the original story, but he couldn't quite put his finger on it.

"I'll find out if I try it."

With that thought, Yu instinctively threw the Rasengan in his hand.

That was right—he threw it.

Yu watched as the Rasengan left his hand.

It gave off a faint whirl of wind in midair, then quickly vanished into the air.

"Did I fail?"

Seeing the Rasengan he had thrown disappear halfway through,

Yu's eyes widened slightly, and he couldn't help feeling a little dejected.

Boom!!

But just then,

the entire ground beneath his feet seemed to tremble slightly.

As Yu stared in disbelief,

the Rasengan, which had clearly vanished, suddenly appeared again.

It unleashed astonishing power, blasting apart the entire tree in the distance!