"Not just me or my mother… almost everyone from the Ninja World is like this!" Gin thought with awe, watching his own rapidly strengthening body."If you bring people from the Shinobi world into the One Piece world and give them these resources... wouldn't all of them become physical training geniuses?"
Yet, he knew talent wasn't equal across the board. Even in the Ninja World, the difference in talent could be vast. For example, Might Guy's natural affinity for taijutsu was leagues beyond the average shinobi.
"Once Guy is born… I must find a way to recruit him. But until then, winning over his father, Might Duy, is key. If I gain his loyalty now and form a contract, it will pay off in the future."
Might Duy's raw potential wasn't inferior to his son's. The reason he remained obscure was because of his limited resources, poor starting point, and the toll of self-training in the Eight Gates. Years of injuries and overuse had suppressed his true potential.
Guy, at least, had the minimal support of a father figure who had walked the same path.
"All right then, you seem to know your stuff."Chiyo folded her arms, stepping forward. "I've shown my sincerity. Maybe now you'll share some of your medical books?"
Gin nodded with a warm smile. "I've already memorized over a hundred of them and copied them out. I can give those right away. The rest will take time to transcribe. I hope you understand."
"Oh?" Chiyo raised an eyebrow, genuinely impressed. "That's more than I expected. Your memory's better than I gave you credit for."
Back in the main room, Gin casually summoned a stack of handwritten books from his personal storage seal—over a hundred medical texts neatly bound.
"You're welcome to read them here," he said calmly, "but I won't be handing out the originals. It's better if you copy them yourself. I don't want to write these out twice."
He planned to use some of the remaining books as leverage—to trade with Tsunade for her knowledge of advanced medical ninjutsu. Trading directly with the Third Hokage? Not even a consideration.
"Oho! You sly brat… You know how to butter up an old woman!" Chiyo chuckled, a faint blush coloring her wrinkled cheeks as she began flipping through the stack with surprising interest.
The books appearing from thin air didn't surprise her much. In her long life, she had seen many Devil Fruit users, including those with space-based abilities.
"Heh… and your books aren't exempt either," Gin grinned. "I'll have to copy them myself. So we're even."
Chiyo had an extensive collection—thousands of books. Gin planned to first memorize them, then transcribe the most important ones when needed. A photographic memory had its perks.
That same day, Gin and his mother Hikari went to the neighboring city to stock up on medicinal herbs and rare materials. They returned with everything needed.
Gin quickly set up his tools and began brewing.
Chiyo silently observed from the corner. At first, his hands moved clumsily, but before long, they gained precision and rhythm. His technique improved rapidly.
So fast? she mused. He must've done this before. Past life experience, maybe? He just needs time to adjust to his new body.
[You have prepared a batch of body-fortifying medicine.Pharmaceutical Proficiency +1.Traditional Medicine Proficiency +1.]
After brewing over twenty doses—ten for Hikari and the rest for himself—Gin handed one to his mother.
"Here, Mom. Drink this. Let me know how it feels."
Hikari drank it without hesitation. Warmth surged through her veins, gently dispelling lingering injuries and fatigue that had accumulated over the years.
Then—like a sudden crash of reality—an overwhelming hunger struck.
As if anticipating it, Gin pulled out a full platter of roasted sea king meat.
"Eat this. After that, we'll do light exercises to maximize the effect."
He drank his own dose, sealed away the rest, and sat in meditation, letting the warmth flood through him.
[You have consumed High-Grade Fortifying Medicine.Physical restoration in progress... Life expectancy increased...]
Gin could feel his organs rejuvenating, his inner vitality rekindling like a dying flame sparked anew. When the hunger came, he too devoured chunks of sea king meat—its nutrients fusing with his already-enhanced body.
His digestion had improved tremendously. This time, the benefits came tenfold—thanks to consistent training and a sea king-based diet.
He stepped outside into the courtyard and began his longevity exercises again.
[You consumed Sea King meat while performing longevity exercises.Exercise Mastery +7.Life Expectancy +7 years.Vital Energy +0.025.]
[Repeated activity detected. Bonus effects slightly diminished.]
"Hmm… the effects are still improving. Good."Gin allowed himself a rare smile. "At this rate, I might be fully restored within a month."
From the porch, Chiyo glanced up from the book she was reading.
"You shouldn't brew so many potions at once," she warned. "Without proper storage, their potency will fade."
Gin turned to her with a grateful nod. "Thanks. But I have a special storage method. The effect remains intact."
"Oh?" Chiyo narrowed her eyes, finally noticing the faint steam rising from the sealed medicine bottles. Was that… a preservation seal? She'd overlooked it until now.
No ordinary brat, this one.
"Your reminder is still appreciated," Gin said with a bow. "It shows you care."
"Of course." Hikari stepped beside her son, smiling softly. "You're surprisingly kind for a so-called 'witch,' you know."
Chiyo scoffed, but a small smirk escaped. "Tch. Just don't expect me to go easy on you if you slack off."
But inwardly, she had already made up her mind.
That healing technique of his… it's no ordinary exercise regimen. It's a true recovery art. I must find out more.
But not yet. First, she had to prepare something valuable enough to offer in exchange. Such a technique… couldn't be asked for lightly.
Hikari, too, was thinking the same.
With a doctor like him around… staying close might be the wisest move I've ever made.