Konoha: Two-Way Travels to One Piece as Uchiha

-----

"Let's keep going!"

With such impressive results and the evident ability of the Longevity Technique to accelerate the digestion of Sea King meat, why stop?

Even better, with the assistance of Sea King meat, Uchiha Kaito felt little fatigue or soreness. Instead, he found himself in an increasingly better state.

Determined, he resumed practicing the technique over and over.

[You practiced the Longevity Technique with Sea King meat: Proficiency +3, Lifespan +3 days, Life Essence +0.01.]

[You practiced the Longevity Technique with Sea King meat: Proficiency +3, Lifespan +3 days, Life Essence +0.01.]

As the Sea King meat in his stomach rapidly digested, its vitality and nutrients were absorbed, visibly improving his body.

His complexion, once pale and sickly, took on a faint rosy hue, making him look significantly healthier.

After practicing the technique over ten times, Kaito finally felt the limits of his physical stamina. Most of the Sea King meat in his stomach had been consumed, and he decided to stop.

"Hah!"

Exhaling deeply, he wiped the sweat from his face. Although his body was tired and sore, he felt as though a massive weight had been lifted. A new energy coursed through him.

He sat at the table, gazing at the remaining Sea King meat. After a moment's thought, he waved his hand and stored it in the space of the Dimensional Gate.

Within this space, he designated a specific area and froze its time flow to preserve food and prevent spoilage.

Thanks to his complete control over the Dimensional Gate's powers, such a feat was simple.

Curious about his progress, Kaito opened his status panel to check.

[Lifespan]: 7 months, 12 days (Congenital Deficiency) — [Life Essence: (3.43/10)...]

Seeing the updates, his eyes brightened.

Not only had his lifespan increased by over a month, but the status now displayed his Life Essence, revealing just how depleted it had been.

"For a healthy six-year-old, Life Essence should be around 10. Mine's ridiculously low—no wonder my lifespan was so short."

"With the current method, I can recover 0.01 Life Essence per cycle of training with Sea King meat."

"Right now, my daily limit is about 15 cycles, but as my Life Essence and body improve, I'll definitely be able to train more each day."

"At this rate, without relying on any additional treatments, it'll take roughly 60 days—two months—to fully restore my Life Essence and overcome my congenital deficiencies."

His heart soared with excitement.

"Two months to Full Recovery! That's way shorter than I expected. Amazing!"

For a moment, Kaito allowed himself to daydream—about restoring his health, mastering his talents, growing stronger, unifying the ninja world, and dominating the pirate world.

"That day isn't far off!" he declared, clenching his fists confidently.

"What isn't far off?"

The voice of Uchiha Jiri came from the doorway, followed by the sound of it opening.

She entered and immediately noticed the change in her son. His vitality was markedly improved, and he looked healthier than before.

In an instant, she appeared in front of him, her eyes wide with excitement. Grasping his hand, she used her chakra to sense his physical condition.

When her observations confirmed her suspicions, she gazed at him with joy and surprise.

"How did you recover so much, so quickly? Is this the effect of the Sea King meat?"

"Yes," Kaito nodded, pointing toward the door to indicate they should speak privately.

Understanding, Jiri waved her hand, using chakra threads to close the door before turning back to him.

Kaito began explaining.

"It's the combination of Sea King meat and the Longevity Technique. When I realized my digestion was too weak to handle the meat effectively, I decided to try using the technique to aid the process.

"The results were beyond my expectations! The combination not only doubled the effectiveness of my training but also significantly reduced fatigue and soreness, allowing me to train more."

"Most importantly," he continued, "my natural talent confirmed that this method actively restores my Life Essence. If I keep this up, I estimate it'll take less than two months to fully recover from my congenital deficiencies and gain a truly healthy body."

"And if we add some tailored medicinal treatments, it'll be even faster!"

"Really?!"

Jiri's voice trembled with excitement. "This method can truly heal your congenital deficiencies?"

"Yes, absolutely!" Kaito confirmed with a nod. "And I believe it can also help restore your lost Life Essence. You should practice the technique with me using this method."

"With your physique and digestion, you'll likely recover much faster than I will."

"Of course, you'll also need to improve your mastery of the Longevity Technique for the best results."

Kaito's own mastery of the technique was at an intermediate level, far exceeding Jiri's beginner proficiency.

"Alright, I'll follow your lead!"

Jiri's eyes softened as she lovingly stroked her son's face before moving to a corner of the room to begin her own training.

Kaito returned to his work, continuing to copy medical texts while occasionally glancing at his mother's progress, offering pointers when necessary.

Thanks to her natural talent, Jiri's proficiency with the Longevity Technique improved rapidly, progressing to an intermediate level after just a dozen cycles of training.

When the Sea King meat in her stomach was fully digested, she stopped and returned to her son.

"Kaito," she said with a bright smile, sitting across from him. "I feel like I'm regaining my peak condition! The training not only healed many of my hidden injuries but also restored a significant portion of my Life Essence."

"With this method, I believe my Life Essence will be fully restored in just over 20 days!"

She sighed wistfully.

"If only Soul Essence were as easy to recover… I might've been able to fully regain my peak strength in no time."

Still, recovering her Life Essence alone would vastly improve her lifespan, allowing her to live decades longer. Over time, her restored vitality might naturally nourish her soul and gradually repair the damage.

Still, it seemed the possibility of reclaiming her peak strength was no longer a distant dream.

Who would've thought that a simple meal of Sea King meat combined with the Longevity Technique could produce such miraculous results?

Even her blind right eye felt warm, as if beginning to heal.

.

.

.