REBORN: BUILDING A VILLAGE IN NARUTO AND ONE PIECE WORLD

After a while, kaigen and her mother arrived at Dr. Kureha's clinic and knocked on the door.

"Who is it?"

A voice with a hint of age responded from inside.

"Creeeak!"

The door was opened, revealing a tall, elegantly dressed old woman.

Upon seeing kaigen and Uchiha Zhi'an, Dr. Kureha, with her keen eye, immediately assessed their condition.

She couldn't help but raise an eyebrow. "One with a damaged origin? The other with a soul deficiency? You two are clearly already recovering quickly. You shouldn't need my treatment, should you?"

kaigen , hearing this, couldn't help but admire her: "As expected of Dr. Kureha, you've already assessed our condition with just one glance! Impressive!"

"Hahaha!"

Dr. Kureha laughed out loud. "You little devil! Don't flatter me like this. I'm just going to treat your illness! You two don't need my help, so you can leave now!"

"Wait!"

As Dr. Kureha was about to close the door, kaigen hurriedly stopped her and handed her a half-volume of a medical book. "Please, take a look at this first!"

Indeed, kaigen knew that his mother's condition had already greatly improved thanks to the Sea King meat and cultivating methods, along with the steadily improving medical skills. The only thing that couldn't be resolved was the deficiency in her soul's origin, which could only be slowly restored by enhancing her life force. Alternatively, once kaigen broke the limit of the Uchiha Underworld Technique, a solution might appear.

Rather than letting this amazing doctor go to waste, kaigen couldn't forgive himself. Who wouldn't want to recover faster?

He might as well learn from Dr. Kureha's medical skills to improve his own. The more knowledge he gathered, the faster his skills would grow. Moreover, he had already obtained Dr. Kureha's longevity medicine formula.

"Oh?"

Dr. Kureha, after glancing at the half-volume medical book handed to her, raised an eyebrow and chuckled. "Hehe! Interesting little devil, you've piqued my interest. Let me take a look at what exactly you're trying to show me."

Then, Dr. Kureha sat down and began flipping through the medical book. She was quickly absorbed by it, completely immersed in its contents.

After a while, she finished flipping through the book and raised her head, nodding to kaigen 's mother. "Come inside!"

She then walked toward the interior of the house.

kaigen and Uchiha Zhi'an exchanged a glance and quickly followed her, not forgetting to close the door behind them.

Soon, the three of them arrived in the living room.

This was Dr. Kureha's workspace. The room was filled with medical books, tools, and even a hospital bed... among other things.

Dr. Kureha invited kaigen 's mother to sit, and she served tea to the two of them. Meanwhile, she took a bottle of plum wine and took a sip.

She then raised the half-volume of the medical book kaigen had handed her and asked, "Where did you get this? The medical theories here are completely different from the ones I'm familiar with! This doesn't seem like something from this world, or even this era."

"Oh?"

kaigen , hearing this, was quite surprised, noting that Dr. Kureha had deduced so much from just a half-volume of a medical book.

However, he wasn't ready to directly admit that the book was from another world unless Dr. Kureha met the required affinity and signed a contract. Only then would he reveal certain otherworldly information.

He immediately responded, "How are you so sure that this medical book isn't from this era? Perhaps it's a secret medical book from our clan? You don't know that there are many different medical books in this world."

"Hahaha!"

Dr. Kureha, hearing kaigen 's attempt to redirect attention toward "not from this era," didn't press further. She had originally planned to ask more questions but decided not to.

Dr. Kureha immediately smiled and replied, "Little devil! There are indeed medical books in this world, but they are definitely not the same as this one!"

"Especially this one; it clearly doesn't belong to this world or this era!"

"Forget it! Let's not talk about that."

"You've truly piqued my interest!"

"I'll treat you, but I hope that once we complete this, you're willing to give me more of these kinds of medical books."

"Of course, I know this deal isn't entirely fair, but I'll allow you to give me any medical books you have in your collection."

"How about it? A trade?"

Dr. Kureha's collection of medical books had thousands of volumes. This trade seemed like a great opportunity for her.

Her medical skills had already reached a plateau, and with the theories in the medical book kaigen gave her, she felt she could take her skills even further.

"Perhaps, by integrating these books, I can finally break free from the constraints of life and find the path to a higher level of existence?"

Dr. Kureha had lived for over 100 years, and her exploration of life and the excitement it brought had never waned. She wasn't willing to stop now.

She was hoping to reach a higher level of existence.

This wasn't a forced trade; Dr. Kureha was known as a "Devil" in the medical world, and she wasn't one to make deals lightly.

"Deal!"

kaigen nodded in agreement. "I have hundreds, even thousands, of medical books from this system, and besides this deal, you won't find these books anywhere else in this world!"

"However, the conditions you've provided aren't enough!"

With that, kaigen raised three fingers and added, "I'll add three more conditions."

"First, besides treating the ailments of my mother and me, I would like you to help us create or improve a nutritional potion for body strengthening or a formula for a body-enhancing potion."

"Second, I want to exchange medical knowledge with you, and I don't want any refusal."

"Third, I want the formula for your longevity potion. If you refuse, I'll provide the materials, and you'll help me refine it."

With the potion, he believed that as his medical skills improved, he could eventually push forward the healing process.

This was a way of leaving room for negotiation, as he wasn't sure how much Dr. Kureha valued the longevity potion.

"Oh? Hundreds or even thousands of books? Impressive!"

However, kaigen 's words about the "thousands of books" didn't seem to distract Dr. Kureha. She was more interested in the second half of his statement.

"I accept your conditions!"

"The nutritional potion is no problem, the body-enhancing formula is no problem, and exchanging medical knowledge is even more welcome!"

"As for the longevity potion formula, that's also no problem! I agree!"

"However, let me remind you that the key ingredient for the longevity potion is the bone of a thousand-year dragon!"

"This is an essential material; you must be clear on this!"

"Got it!"

kaigen nodded firmly, "I've known that for a long time! Getting the thousand-year dragon's bone is not an issue!"

The dragon bones were easily obtainable for him, as he knew exactly where to find them—under the waters near Battleship Island!

He even knew that there was a living thousand-year dragon there.

"Hahaha! Looks like you were prepared for this!"

Dr. Kureha, although a little surprised, couldn't help but smile, asking, "Well then, is there anything else you need? Let's wrap up this trade soon!"

"No, this is enough for me," kaigen shook his head. "No need to ask for more. One shouldn't be too greedy."