The Brutal Lesson 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, she watched those cells completely turn to ash. She sighed, then said with a hint of reluctance:

"I will definitely heal your body. If the Mystical Palm Technique doesn't work, then I'll create even more powerful Medical Ninjutsu and truly free you from that wheelchair."

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

As the founder of Medical Ninjutsu, Tsunade had seen many difficult and complicated illnesses. It was by combining her experience with those cases that she had ultimately created the Mystical Palm Technique.

If she could uncover the cause of Uchiha You's bodily mutation, her Medical Ninjutsu could rise to another level.

"Thank you, Lady Tsunade."

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

He had waited through several years already, so what was one more week? Watching Tsunade seriously analyze his flesh and blood, he recalled that warm chakra energy from before.

"Can I learn Medical Ninjutsu? Only I understand my own body best. I hope I can use Lady Tsunade's medical knowledge to overcome the difficulties with my body."

He calmly voiced what was on his mind.

The requirements for becoming a medical ninja were extremely strict. Ordinary chakra could not accomplish it; Yang Release Chakra was required.

"You want to become a medical ninja?"

Tsunade's hands paused slightly as she worked on the experiment. She raised her head and looked at Uchiha You lying on the operating 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 spell it out.

In Tsunade's eyes, medical ninjas carried a sacred mission. It was not something that could be achieved with a single sentence or a single goal. Patiently, she explained:

"To become a medical ninja, you need talent. But before that, you have to learn a vast amount of medical knowledge. Otherwise, if you stitch the wrong place while treating someone, you'll only be sending them to their death."

It was no joke. Once they were on the battlefield, circumstances could be urgent. One careless mistake could lead to stitching the wrong place, and even if Medical Ninjutsu healed the wound, it could 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 try to discourage him. After all, the medical knowledge she had organized already had a rough framework.

Yet the material it covered was extremely disorganized. Starting from the beginning would undoubtedly be a massive undertaking.

Furthermore, he needed a specific type of chakra, and he did not seem to meet that requirement. She could only hope that she would develop other forms of Medical Ninjutsu in the future.

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

The initial examination did not take long.

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

"I thought I'd suffer a lot more."

After leaving the laboratory, Uchiha You listened to the terrifying screams coming from the room next door. Those hysterical howls sounded so awful that anyone unfamiliar with the situation would have thought someone was being tortured.

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

Tsunade hurriedly pushed him through the corridor, doing her best to make medical ninjas sound better, especially when it came to their work.

"I understand your physical condition. Experiments on that scale could never be performed on you. I'm not so heartless that I'd use a child to develop ninjutsu."

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

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

Bang!

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

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

Uchiha You was instantly petrified. Although he knew learning Medical Ninjutsu would be difficult, the first hurdle seemed impossibly high.

"There's way too 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 focused on the Third Hokage's Will of Fire, along with basic ninjutsu and taijutsu training.

Forget carrying the books before him. Even lifting them all in his arms seemed difficult.

Sure enough, every medical ninja in the world of Naruto seemed capable of using Medical Ninjutsu with effortless ease.

Only when it landed on him did he realize that this stuff could truly crush someone to death!

He suddenly regretted his plan to become a medical ninja.

Still, Uchiha You casually opened the first page.

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

"These are only the basics. Don't underestimate them. In other villages, they would be considered classified documents."

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

"Read them carefully for now. If you learn enough, I can find a medical ninja to serve as your squad leader after you graduate."

"Your missions will be much easier too."

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

"These books really taught me a lesson."

Uchiha You could be certain that because of his body, the sunlight he absorbed would also produce Yang Release Chakra.

After all, the Uchiha Clan had never had a medical ninja.

The chakra derived from Uchiha bloodlines was all Yin Release Chakra.

With those two powers combined, he would definitely become one of the strongest in the future.

After giving him a brief lecture, Tsunade realized that transporting all those materials back to his home would be no small task.

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

As for why Tsunade did not personally see him off, it was because they belonged to opposing factions.

Sometimes, one's birth meant reconciliation was impossible.

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

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

However, Tsunade had overlooked one person.

"Why is Tsunade walking together with an Uchiha?"

Danzo's gaze carried a trace of coldness. The previous mission had failed, costing him two ANBU members and causing no small amount of trouble.

And an Uchiha had been present at the time.