The Beating of Knowledge

Tsunade's methods were rather limited. Her narrow perspective meant she only knew how to use chakra, and chakra had no effect whatsoever on radioactive elements.

In the end, watching those cells completely turn to ash, she sighed and said with some reluctance,

"I will definitely cure your body. Since the Mystical Palm Technique won't work, then I'll create an even more powerful medical ninjutsu and truly free you from that wheelchair."

Those words were not only meant for Uchiha Yū, but also for herself.

As the founder of medical ninjutsu, Tsunade had encountered many difficult and complicated illnesses. By combining her knowledge of those conditions, she had ultimately created the Mystical Palm Technique.

If she could uncover the cause of Uchiha Yū's bodily mutation, her medical ninjutsu could advance another level.

"Thank you, Lady Tsunade."

Uchiha Yū was not too upset. With his current rate of healing, he would be able to leave the wheelchair in a week at most.

He had waited through several years already, let alone one week. As he watched Tsunade seriously analyze his flesh and blood, he recalled that warm chakra energy from earlier.

"Can I learn medical ninjutsu? No one understands my body better than I do. I hope I can use Lady Tsunade's medical knowledge to overcome the obstacles in my body."

He calmly voiced what was on his mind.

The requirements for becoming a medical ninja were extremely strict. Ordinary chakra would not suffice; Yang Release chakra was required.

"You want to become a medical ninja?"

Tsunade's hands paused slightly as she conducted her experiment. She raised her head and looked at Uchiha Yū on the examination table, but she did not discourage him just because he was a child.

Tsunade knew about the Uchiha Clan's bloodline, but she did not say so outright.

In Tsunade's eyes, medical ninja carried a sacred mission. It was not something that could be achieved through a single declaration or goal, so she patiently explained,

"To become a medical ninja, you need talent. But before that, you must learn a great deal of medical knowledge. Otherwise, when you're treating someone, stitching up the wrong place will only send them on their way."

It was no joke. Conditions on the battlefield were urgent, and one careless mistake could result in stitching the wrong place. Even if medical ninjutsu healed the wound, it could still leave behind a fatal hidden injury.

"Isn't it just medical knowledge? If possible, I can start studying now and intern at the hospital after graduation."

Seeing the determination in his eyes, Tsunade did not deliberately crush his spirits. After all, the medical knowledge she had organized already had a rough overall framework.

Yet its contents were immensely varied and disordered. Starting from the beginning would undoubtedly be an enormous undertaking.

Moreover, specific chakra was required, and he seemingly did not meet that condition. She could only hope that she might develop other medical ninjutsu in the future.

"Fine. Since you're confident, I'll give you some books once we leave the laboratory."

The preliminary test did not take long.

After replacing all the bandages on Uchiha Yū's body and applying medicinal powder to the ulcerated areas, they were able to leave the laboratory.

"I thought I'd be put through some terrible torture."

After leaving the laboratory, Uchiha Yū listened to the terrifying screams coming from the room next door. The heart-wrenching howls were enough to make anyone who did not know better think someone was being tortured.

"Medical ninja aren't as cruel as you think."

Tsunade hurriedly pushed him through the corridor, doing her best to put medical ninja in a better light.

"I understand your physical condition. Large-scale experiments like that could never be performed on you. I'm not so deranged that I'd use a child to develop ninjutsu."

On the hospital's second floor was a separate room containing the medical materials Tsunade had organized. Since they were all basic materials, there were not many security measures.

After sorting through them, she took out a huge stack of books.

Bang!

The books hit the floor and kicked up a cloud of dust. Tsunade looked at the stack, which was as tall as he was.

"These are the introductory books. First, you need to learn the structure of the human body."

Uchiha Yū froze on the spot. Although he knew learning medical ninjutsu would be difficult, the first hurdle seemed impossibly hard.

"There's so much of this? Is this really something someone my age should be dealing with?"

The Ninja Academy did not teach specialized medical knowledge. Most of its lessons revolved around the Third Hokage's Will of Fire, along with basic ninjutsu and taijutsu training.

Forget carrying the books in front of him. It felt like a struggle just to pick them up.

Sure enough, every medical ninja in the Naruto world seemed able to use medical ninjutsu with effortless ease.

Only when it fell upon him did he realize that this stuff could really crush a person to death!

He suddenly regretted deciding to become a medical ninja.

Still, Uchiha Yū casually flipped open the first page.

Because of his body, he was temporarily unable to train in taijutsu, so he spent all the time he saved reading medical books.

"These are only the basics. Don't underestimate these books; in other villages, they could be considered classified documents."

Only then did Tsunade realize that she had organized rather too much material. A full set of medical books had cast a shadow over young Uchiha Yū's childhood.

"Study them carefully first. If you learn them well enough, then after graduation, I can find a medical ninja to serve as your squad leader."

"Your missions will be much easier as well."

Even if he could not become a medical ninja, Tsunade still wanted to cultivate more medical talent for the village. If another great war broke out in the future, there could be fewer casualties.

"These books really taught me a lesson."

Uchiha Yū was certain that because of his body, absorbing sunlight would also produce Yang Release chakra.

After all, the Uchiha Clan had no medical ninja.

The chakra stemming from the Uchiha bloodline was all Yin Release chakra.

With those two powers combined, he would definitely become a top-tier powerhouse in the future.

After giving him a brief lecture, they faced another issue: transporting all those materials back to his home would not be a small task.

He could only have someone follow behind him, carrying the books as they left Konoha Hospital together.

As for why Tsunade did not personally escort him, it was because they belonged to opposing camps.

Sometimes, one's birth meant reconciliation was impossible.

To avoid causing unnecessary trouble, Tsunade did not intend to reveal anything for now. Only after the tensions between the two sides eased in the future, or after he had truly learned all that medical knowledge, would she acknowledge their relationship.

The news that Uchiha Yū had secretly become Tsunade's experimental assistant did not spread everywhere.

However, Tsunade had overlooked one person.

"Why is Tsunade walking with an Uchiha?"

There was a trace of coldness in Danzō's gaze. The failure of the previous mission had cost him two ANBU and caused no small amount of trouble.

And an Uchiha had been present at the time.