Konoha: Two-Way Travel to One Piece

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Half a month later

Kaito was in the courtyard of the Sky Island, routinely cultivating the Longevity Technique.

At this point, his Longevity Technique had reached its peak perfection. Only one final step remained to surpass its limits.

[You consumed Sea King meat to assist in cultivating the Longevity Technique. Mastery +10. Your Longevity Technique has broken past its perfection limit, and you have entered enlightenment...]

In the next moment, Kaito felt himself entering a state of absolute clarity.

His mind seemed to become infinitely sharper, as if its flexibility had increased a thousandfold, no, ten thousandfold!

Suddenly, countless insights related to the Longevity Technique surged into his consciousness, rapidly forming the prototype of a new technique.

And it continued to refine itself further.

"What's happening to Kaito?"

Nearby, Kushina, who was also cultivating, noticed something unusual about Kaito and spoke out in concern.

She was about to step forward.

"Stop! Don't make a sound!"

Mikoto quickly grabbed her arm and gestured for silence, whispering to both Kushina and Minato, who was also startled by the commotion:

"He's in enlightenment! Kaito told me about this before!"

"We can't disturb him, or we might ruin his enlightenment."

"Kushina, can you set up a soundproof barrier around the area to keep Kaito undisturbed?"

Apparently, Kaito had anticipated such a situation and made prior arrangements.

"Enlightenment? Like when he created that amazing Chakra Refinement Manual that time?" Kushina whispered in astonishment.

Mikoto nodded firmly. "Yes! Now stop talking and set up the barrier!"

"Alright, alright!" Kushina immediately began weaving hand seals and pressed her palm to the ground.

In an instant, a series of sealing runes spread from her hand, encircling Kaito.

A soundproof barrier formed, isolating Kaito while leaving Kushina, Mikoto, and Minato outside.

"Phew!"

After finishing the barrier, Kushina exhaled deeply. She glanced at Kaito, still immersed in enlightenment, with both curiosity and concern.

"He'll be fine, right?"

"Of course, just be patient," Mikoto reassured her. "I'm more curious about what he'll gain from this enlightenment."

"Probably something related to the Longevity Technique," Kushina guessed. "He was practicing it earlier. Look, he's moving now! Is that the Longevity Technique?"

"No... wait, it's different! It's changing! And the changes are getting more profound… This is nothing like the original technique!"

Inside the barrier, Kaito's body had started to move on its own, practicing a set of techniques increasingly distinct from the original Longevity Technique.

He continuously adjusted his movements, while an aura of profound mystery enveloped him.

Watching this, Kushina and the others couldn't help but feel mesmerized.

The insights they gained just by observing seemed to deepen their own understanding of the Longevity Technique.

After half an hour, Kaito finally completed the new technique and emerged from his enlightened state.

[Your Longevity Technique has broken its perfection limit. You've entered enlightenment and created the Eternal Life Technique.]

[Eternal Life Technique]: A technique evolved from the Longevity Technique during enlightenment. It enhances physical health, prolongs life, accelerates healing and recovery, cleanses impurities, and improves natural talent. Its effectiveness is ten times that of the original Longevity Technique.

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"Wow, what a huge gain!"

Kaito reflected on the Eternal Life Technique he had just created.

Fundamentally, it was still an advanced version of the Longevity Technique.

This made sense, given his Heaven Rewards Diligence ability, which improved any technique or skill he mastered, breaking its limits and leading to enlightenment.

If Kaito had studied other similar techniques beforehand, the enlightenment would have fused them into the new technique.

However, since the Longevity Technique was the only one he had cultivated, the resulting technique naturally became its advanced version.

This enlightenment didn't only create the Eternal Life Technique.

Kaito's lifespan had also increased by another 20 years, reaching 222 years.

He recalled how, before awakening his memories of his past life, he'd had only six months to live.

Now, in just over two months, his lifespan had exceeded 200 years.

It was almost unbelievable.

Such was the life of someone with a cheat-like advantage.

Besides that, Kaito noticed a layer of sticky, foul-smelling black residue on his body.

It was clearly impurities expelled during the breakthrough of the technique.

"Kaito, are you done? How are you feeling?"

Outside, Kushina and the others saw Kaito awakening and quickly dispelled the barrier, eager to approach.

"Wait! Let me take a bath first!"

Kaito raised his hand to stop them and, without waiting for a reply, teleported to the bathroom at his home in the Ninja World.

He scrubbed himself thoroughly several times, ensuring there was no remaining odor. Then, he retrieved a clean set of clothes from his storage space and changed.

As for his old clothes, he incinerated them in the backyard with a fire technique, completely destroying them.

Feeling refreshed, Kaito began inspecting the changes in his body.

After all, the cleansing process from breaking limits was bound to leave some noticeable improvements.

Soon, he discovered that his physique had become three times stronger.

More importantly, his meridians were now broader and tougher, their capacity increased by at least 100%.

To confirm his gains, Kaito decided to practice some basic taijutsu.

He immediately felt a change.

"My physical foundation and Taijutsu talent have increased by more than double! This is a huge gain!"

"It seems like the effects of the Limit-Breaking skill are incredible!"

"It's not just about gaining enlightenment in techniques!"

After finishing a round of basic Taijutsu practice, Kaito stopped and sighed in amazement.

"Time to head back!"

Thinking this, he focused his mind and teleported back to Skypiea.

---

"Yo!"

Seeing Kushina and the others still training, Kaito waved with a grin. "I'm back!"

"You're finally back! What were you running off for earlier?"

The three of them immediately stopped their training and gathered around him. Kushina asked curiously.

"Uh… well, it's because my Longevity Technique broke through, and I had an enlightenment."

"I underwent a deep internal cleanse and renewal. You know how it goes..."

"So..."

Kaito waved his hands, explaining awkwardly.

"Ah, I see!"

The three women suddenly understood. No wonder Kaito had run off so quickly earlier!

Indeed, every breakthrough in the Longevity Technique triggered a cleansing process that expelled impurities from the body.

At the beginner level, the effect was minor, but as proficiency increased, the cleansing became much stronger.

What Kaito had experienced earlier was a breakthrough beyond perfection—its effects were obvious.

And yes, cleansing impurities leaves behind quite the unpleasant smell.

"So? What did you comprehend this time?" Mikoto asked curiously.

Minato and Kushina also looked at him eagerly.

Seeing their expressions, Kaito chuckled. "This time, I created a much stronger version of the Longevity Technique. I've named it the Eternal Life Technique, it's a true Longevity Technique."

"Its effects are ten times greater in every aspect, essentially a full upgrade!"

"But, naturally, the difficulty of cultivation is also at least ten times higher."

"And it requires mastering the Longevity Technique to perfection before you can switch to it."

"So, don't get your hopes up too soon! Focus on perfecting the Longevity Technique first."

At this point, for the three of them, the current technique was already plenty.

"Oh, I guess that's out of the question for now."

Kushina's face immediately fell upon hearing this.

"Haha!"

Mikoto laughed softly, covering her mouth. "Laying a solid foundation is always a good thing, isn't it?"

"True, true!"

Kushina nodded, her disappointment vanishing instantly. She was naturally an optimistic person.

"All right, everyone! Back to training! I'll get to it as well."

Kaito clapped his hands and moved to the side. He created several shadow clones, assigning them to practice ninjutsu and chakra control, while his main body focused on developing his Rumble-Rumble Fruit abilities.

Over the past ten days of training, he had already brought his Rumble-Rumble Fruit abilities to a proficient level.

The progress wasn't exactly fast, but this was mainly because his physical endurance and stamina limited the amount of time he could train daily.

Once his physique improved further, he'd be able to train longer each day, and his mastery of techniques would progress faster.

But this wasn't something he could rush.

Improving one's physique required a step-by-step approach.

Still, thanks to the Longevity Technique Technique, his physical development was already ten times faster than others his age.

Of course compared to others in the One Piece world. As for the shinobi world? Forget it. Most of them were glass cannons with low durability.

Now, with the upgraded Longevity Technique, he estimated his physical improvement speed would increase by another tenfold.

"Man, having cheat-like powers is just awesome!"

The thought made Kaito inwardly delighted.

"Hm?"

Suddenly, he received a notification from his Communication Space. Dividing a portion of his focus, he checked the message.

It was from Little Kuro, the ninja hawk.

Kaito took out the note from Kuro and read it.

[Message: The map of Shimotsuki Village has been marked. Please confirm, Master!]

"As expected, it was from Little Kuro."

Since being bound to Kaito, the ninja hawk had been nurtured with care.

Not only did it have an endless supply of Sea King meat, but recently, when Kaito developed a version of the Village specifically for the Millennium Dragon, he also created a tailored version for his ninja hawk.

With this cultivation technique, Kuro's lifespan increased, its physique and bones strengthened, and its digestion and absorption capabilities improved by more than tenfold.

This meant its growth speed skyrocketed. It became stronger, larger, and smarter by the day.

Now, not only could it speak human language, but it had also learned how to write.

Of course, that was thanks to Kaito transmitting vast amounts of text and knowledge directly into its mind.

Without that, even with its growing intelligence, it wouldn't have learned so quickly.

By the way, the Millennium Dragon had also been freed by Kaito and was temporarily residing on Skypiea.

It spent its days practicing the Longevity Technique to extend its lifespan.

And its food?

It hunted Sea Kings in the Blue Sea below.

Given its size and appetite, feeding it would've been a hassle for Kaito.

For now, its strength was far from its peak. Otherwise, Kaito might've sent it to explore maps as well.

In its prime, the dragon's speed was leagues ahead of the ninja hawk's.

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