Uchiha Ayumi's three broken limbs were treated on the front line. After a simple debridement, he received healing treatment and the wound was directly closed.

Because the broken bones were not cleaned, the wound healed very poorly, but at least his life was saved.

By the time they were sent back to Konoha Village for better treatment, the three wounds had already gone through several rounds of inflammation and festering, with countless minor problems such as bone absorption, bone spurs, granulation growth, cysts and abscesses, which completely destroyed the wounds and caused the healed wounds to be bumpy.

Because the wound progressed severely, he even lost the opportunity to have his limb amputated and the possibility of installing a prosthesis, and helplessly became a complete waste.

Uchiha You used a scalpel to cut open the wound that had long since healed. When he turned over the skin, he saw the messy structure under the skin. Various hyperplastic fascia, bone spurs, blood vessels and connective tissues were tangled together, and there were even tangled nerves interspersed among them.

The word "a mess" is not enough to describe the mess here.

Uchiha Ou took a deep breath and started to deal with it, sorting out the mess bit by bit and making it smooth as quickly as possible.

The Gordian knot approach is never suitable for treatment, unless the diseased tissue has to be removed to save lives.

Uchiha You had quick eyes and hands, and a powerful natural healing ability. With the help of the vitality of his flesh and blood, he quickly unraveled the mess.

He removed the proliferating blood vessels and nerves and connected them to the missing positions. Only the completely missing parts would be regenerated at a specific point using natural energy.

When the work was finished, the transparent nerves, red arteries and blue veins were held in the air by invisible natural energy, outlining the contours of the arm.

Even the blood has begun to flow and circulate in the blood vessels, showing a strange vitality.

Uchiha You started the next step with satisfaction. He activated the Wood Release Chakra, lightly touched the cleaned broken bones with his index finger, and then slid it to the far end.

With a slight creaking sound, the wooden skeleton grew out from the broken edge and extended towards the finger little by little as the finger moved.

After cutting off half of the humerus, Uchiha You used his index and middle fingers to direct the growth of the Wood Release technique, which split into the ulna and radius and extended forward at the same time.

When it came to the wrist, Uchiha Yu had to use all five fingers to control the Wood Release to form the wrist bones, metacarpal bones, and phalanges one by one.

In Chinese history, there is a legend of using willow branches to replace finger bones. Uchiha You has verified that this is feasible, but it is only a temporary measure.

But his Wood Release is different. Not only can it provide temporary support, but it can also be replaced by calcium under the operation of life and quickly turn into real bones.

The experimental dog's bones were slowly replaced from wood to bone in this way, without any flaws at all.

When the Wood Release skeleton had finished growing, Uchiha You mixed together the fascia and connective tissue that had been cut off before and covered them between each joint.

Using this flesh and blood as seeds, Uchiha You launched a ninjutsu.

Wood Release: Limb Regeneration Technique

With a chirping sound, the cushioning materials between the bones fused together and grew outward according to Uchiha You's understanding of the human body structure.

As the white fascia stretched, it gradually turned into red muscle fibers. Thousands of muscle fibers stretched forward like earthworms, until they touched the muscles on the opposite side and then fused together like glue.

The slender muscle fibers began to expand and contract, gradually becoming thicker, and gradually changing from a relaxed state to a tense state, looking strong and powerful.

Finally, Uchiha You hugged the new, red, muscular arm with both hands, and slowly moved it from the broken end to the end.

As he moved, Wood Release chakra was concentrated on the skin incision made by the scalpel.

Tiny plants that were invisible to the naked eye grew on the surface of the incision. They multiplied rapidly, expanded in size, and quickly transformed into human skin.

With the support of Wood Release Chakra, the plants reproduced so quickly that they were able to catch up with Uchiha Yu's speed. In just two minutes, they grew between the five fingers.

Only then did Uchiha You let out a deep breath and his tense spirit relaxed.

The human body is much more complex and larger than that of a dog, and the workload is completely incomparable.

The limb regeneration technique uses Wood Release cells, reverses the characteristics of these cells and transforms them into big trees, and reverses the plant cells that can reproduce and grow rapidly into Wood Release cells, and finally transforms them into human cells.

Because the entire process develops in reverse, which completely goes against the natural characteristics of Wood Release, the operator needs to tightly control the entire process without any slackness.

Even if Uchiha You bypassed the most difficult bone growth and separated the growth process of blood vessels and nerves, the entire regeneration process was still a heavy burden for him.

However, it was still within his tolerance and he would not feel tired after growing another arm.

After resting for a few minutes to relieve his tense spirit, Uchiha You also performed limb regeneration on Uchiha Ayumi's legs.

When Miwa Masayo woke up and came over with Yaeko and Uchiha Shisui, Uchiha Ayumi was already standing on the ground with tears streaming down his face.

Although he had long been numbed by the various surprises and astonishments, when Uchiha Shisui saw Ayumi standing on the ground on his own legs, he was still so shocked that he was speechless and lost the ability to speak for a moment.

But he had experienced many shocks and soon came out of his trance.

When he saw that Uchiha Ayumi was losing his balance, Uchiha Shisui rushed over and supported him.

When he got closer, he saw the boundary between the old and new skin and confirmed that it was newly grown. He couldn't help but reach out and touch the new skin, feeling its softness and stickiness.

Shisui's training made his sense of touch more acute. He could even feel the muscles beating and blood flowing underneath, as well as the quite strong chakra fluctuations.

All the feelings came together, making him feel a strong and surging vitality.

At this time, Uchiha You had just come back from taking a shower. When he saw Uchiha Bu Shi standing on the ground, his sharp eyes swept over him like a knife, and Bu Shi was so scared that he quickly lay back on the bed.

Uchiha You scolded him in dissatisfaction: "Humph, I told you that it has just grown out and is very fragile in all aspects. I asked you to lie down for another four hours to stabilize the state. How come you can't even bear it for ten minutes?"

Uchiha Bu Shi explained embarrassedly: "Hehe, I really couldn't help it, I was too excited."

"Hehe, your legs, knees, ankles, and soles of your feet, do they hurt?"

"pain……"

"Come down again and try again. I'll see if I can cut it off and reattach it in three months."

"Yes, yes, I won't dare to do it again. Never again."

Uchiha Ayumi turned pale with fright, and repeatedly promised that he would wait obediently for four hours.

Uchiha You gave it a quick check, then began to adjust the dislocated joints back to their correct positions, and then used natural energy to nourish the damaged joints and ligaments.

After doing all this, he said to Uchiha Ayumi: "Ayumi, I'm not kidding you. The new legs and arms are just like a newborn baby. They can't bear your weight at all."

"Before your condition is completely stable, your joints can't even bear the pull of the new muscles. If you dared to jump or even fall just now, the key ligaments would definitely be broken."

"Look, your nails haven't even grown out yet, do you want to grow out amazingly round fingers?"

Uchiha Ayumi didn't dare to say a word after being scolded. The pain from his joints being pulled back into place also made him realize how serious it was. He no longer dared to hope in anything.

With Uchiha You's skillful hands and feet, Uchiha Ayumi's body was quickly adjusted one by one, then smeared with a layer of octopus oil and wrapped with thick bandages.

Finally, he said, "Just bear with it for a while. By dinner time, you will be back to normal and can start physical training tomorrow."

"So, don't worry, got it?"

"Yes, Brother You, I understand."

"hehe."

Uchiha You's eyes turned red, and the three magatama spun rapidly, causing Uchiha Bu Shi's face to change drastically. He shouted in panic: "No, I... don't... want to..."

Before he could finish his sentence, Uchiha Ayumi fell into a deep sleep involuntarily, as if he had been anesthetized.

Uchiha Shisui was a little curious. It was just hypnosis to sleep, so what was Ayumi-kun afraid of?

In the following time, Shisui discussed the optimization of basic skills with Uchiha You, and then he was sent out to buy a large amount of milk, pork liver and half a bag of lime powder.

Then Uchiha You started to prepare lunch. His movements of cutting, tossing, frying and kneading while cooking were as smooth as flowing water, which was a pleasure to watch.

He even had a platform in the kitchen to process the pig liver.

Unlike Uchiha Shisui's imagination of making fried pork liver, Uchiha You crushed the pork liver and then soaked it in clean water.

He then used the Fire Style: Great Fireball Technique as a strong light source and pig skin as the raw material to create several different esters.

Then he took advantage of the solubility difference of ester compounds to extract a large amount of crystals from pig liver water, and finally produced higher purity vitamin D3 through saponification reaction.

This thing is also called cholecalciferol, which is the best element to promote calcium absorption. It has the function of regulating calcium and phosphorus metabolism, inducing calcium and phosphorus deposition in bones, and can promote bone growth very well.

Normally, as long as people keep getting enough sun exposure, their needs will be met.

But Uchiha Ayumi's bones need to be replaced with bone first, and the calcium required is very abnormal. Without the assistance of a large amount of vitamin D3, the amount of calcium intake is enough to cause calcium poisoning.

As for the calcium supplement, it is of course calcium carbonate made from lime powder.

Although eating too much can cause constipation, it is not a big problem.

When it was time for dinner, Uchiha Bu Shi walked out of the ward with a gloomy face. He was startled when he saw Uchiha You and was in a trance for a long time before he returned to normal.

Uchiha Shisui asked curiously: "Brother Ayumi, what's wrong with you? And why are you afraid of Brother You's hypnosis?"

Uchiha Ayumi smiled bitterly and said, "Shisui, you are a genius and you can't feel the pain of us mortals at all."

He looked up at the sky, letting the tears of fear stay in his eyes and whispered, "Brother You is very dissatisfied with our learning progress. Every time he hypnotizes us, he makes us study in our dreams."

"Memorize, do exercises, and take exams..."

"You can't wake up if you fail the exam. A genius like you can't understand that kind of terrible despair."

Uchiha You came over with a large pot of stewed pork ribs, glared at Bu Shi fiercely, and threatened: "You still dare to complain? Do you believe that I will let you learn math in your dreams next time?"

Hearing this, Uchiha Bu Shi turned pale. He trembled and begged for mercy: "Please spare my life, Brother You. I really can't learn math! I will die in my dream, absolutely!"

"Humph, if I had studied hard, I wouldn't have to develop the illusion technique of learning in dreams."

"Have a meal!"

"Yes, yes, yes."

Seeing the stack of bowls and chopsticks handed over by Uchiha You, Uchiha Ayumi subconsciously stretched out his hands, took them, then filled the rice pot with a bowl of rice and gave it to Uchiha Shisui first.

At this moment, he saw the smiling faces of Uchiha Shisui and Uchiha You, and was stunned for a moment before realizing that he was operating it with both hands.

Not only did he not feel the pain and disharmony he had felt four hours ago, he was not even affected by the habit of living with disability over the past few months. Everything seemed so natural.

In an instant, he understood that learning in dreams was not only torture, but also the best way for him to get rid of bad living habits, allowing him to painfully become familiar with the state of having healthy hands and feet in his dreams.

Uchiha Ayumi smiled casually, distributed the bowls, including the special bowls for Miwa Masayo and Yaeko, then sat down and ate with big mouthfuls.

Uchiha You's kindness is beyond words, so let's not talk about it anymore. Uchiha Bu Shi has made a decision. He will follow Uchiha You's lead from now on and will never say a word of it in his life.

Uchiha You was very satisfied with Bu Shi's attitude, and even more satisfied with his condition.

During the six months of disability, Ayumi showed a strong will and was not discouraged by life. He also did not have an emotional breakdown due to despair, causing the three-magatama Sharingan to awaken prematurely.

But after the battle, his two magatama Sharingan that had awakened during his training were full of power. It was obvious that he did not give up training even after becoming disabled, and even maintained his physical condition at a very high level.

Uchiha Ayumi is an outstanding talent, and his loyalty to Uchiha You is clearly visible and unquestionable.

Although he is not a genius, there is no one more suitable to be the successor than him.

Uchiha You decided that after Uchiha Ayumi fully recovered his health, he would accept him as his disciple, teach him the true method of cultivating immortals, and lead him on the path to immortality.

After eating and drinking, Uchiha You took out the calcium supplement tablets and milk, stuffed them all at Uchiha Bu Shi, and instructed: "Take 30 calcium tablets every day and drink a liter of milk. Only in this way can you recover quickly and avoid osteoporosis."

"I understand, Brother You."

"Also, you can start exercising tomorrow, but the intensity must not be too high. You have added an arm and two legs, so you will inevitably develop structural anemia. If you exercise too hard, it will be dangerous."

"Yes, I will be careful."

"Okay, go ahead."

…

Early the next morning, after absorbing the purple energy of the morning sun, Uchiha Yuu and Uchiha Shisui went together to the study session which was said to be becoming increasingly chaotic.

Unlike the makeshift team when Uchiha Yu founded the group, today's study group has built a brand new training ground and dormitory near the shrine, and even has cafeterias, meeting rooms, toilets, bathhouses and other functional buildings.

But when Uchiha You arrived, the members of the study club were not training, but were scattered around the training ground, gathering in groups of three or four to chat and have fun.

There were old members among these Uchiha children. When they saw Uchiha You, they subconsciously jumped up and stood straight on the spot.

Some members knew Uchiha Shisui, and when they saw him following Uchiha Yu, they realized that the person who came was the president who had not shown up since taking office more than half a month ago.

So these Uchiha also quickly stood up and stood at attention, imitating their predecessors.

The clever ones among the remaining Uchiha noticed something was wrong from the atmosphere, so they stood up and stood at attention.

Finally, there are the kids who neither know Uchiha Yuu nor submit to Uchiha Shisui. They are basically guys who come from an elder family and have a proud personality.

It must be said that although they were born into the elders' families, they were not direct descendants, but rather close nephews and great-nephews.

The real elders’ sons and grandsons will not appear here.

Uchiha You smiled slightly, and the next moment his eyes shot out a sharp gaze that swept across the entire training ground. All the Uchiha who stood up felt their hearts tighten and they stood straighter involuntarily.

Looking at those Uchiha who were lying, sitting, or even leaning, I felt as if my forehead was hit hard by a sledgehammer.

Their eyes rolled back and they fainted on the ground without a sound.

Uchiha You said: "Shisui, you come and lead everyone to start training. We will conduct queue training this morning."

Uchiha Shisui answered without hesitation: "Yes!"

Uchiha You walked towards the meeting room and said as he walked: "Before the training begins, throw those who have fainted aside. I will decide whether they stay or go when I come back."

Uchiha Shisui couldn't help but ask: "Brother You, don't you need me to punish them?"

Uchiha You turned around and smiled, and said, "Have you forgotten what happened last night?"

Uchiha Shisui was stunned: "Ah?"

Uchiha You said: "I have already punished him."

Uchiha Shisui suddenly realized and said, "I understand, Brother You."

Then, Uchiha Shisui began shouting, calling his friends, and leading everyone to re-form.

Amid the crisp shouts of Shisui and others, Uchiha You strode into the meeting room of the study group.