The threat that Uchiha Yuu was talking about was of course Uchiha Madara.

He didn't want Uchiha Madara to find the executor of the Infinite Tsukuyomi plan. The uncertainty of the Mangekyō Sharingan ninja was too great, and he really didn't know what the consequences would be.

So Uchiha You not only kept a close eye on Uchiha Obito, he also ordered Elder Uchiha Ryunosuke to keep an eye on several ninjas in the family.

Surveillance is a very difficult task, especially when the target is a ninja. It is even more difficult and requires several times the number of ninjas to keep a close eye on him.

Fortunately, there are not many weirdos like Uchiha Obito in the Uchiha family.

Excluding a few children who are too untalented and too young, and removing two guys who are too old, there are only two people who need Uchiha Yuu to monitor, and one of them is Uchiha Obito.

Another target is called Uchiha Yae, a female ninja with a very gentle personality and a kind heart. She is also currently serving in an ordinary ninja team, but she has not been transferred to the front line like Obito.

This is a true saint who is able to sacrifice herself at any time to protect others. For the benefit of the team, she is even willing to learn medical ninjutsu.

When Uchiha You first investigated this information, he thought it was his companion who had traveled through time, but fortunately he ruled out this possibility.

Of course, Uchiha You had no way to prove whether she was a time traveler or not. He only verified through secret codes that she was not his fellow villager, nor was she a little Baka or a little Korean.

Oh, and she doesn’t know English either.

To be honest, the cultural differences are to this extent. Even if this girl is really a time traveler from Earth, she has nothing to do with Uchiha Yu.

After staring closely at Uchiha Yae and Uchiha Obito, Uchiha You finally felt relieved.

But when he clashed with Uchiha Setsuna at the banquet and came into contact with the elder's youngest son for the first time, Uchiha You was surprised to find that although the elder Setsuna's youngest son was surprisingly stupid, he had excellent qualifications and rich emotions.

At that time, Uchiha You's heart skipped a beat, but Uchiha Fugaku's subsequent attack made him unable to pay any more attention.

He was confined for the next few days, but his external contacts were not cut off. Recalling the situation at that time, his intuitive sense of crisis became stronger and stronger, so he ordered Uchiha Yuichiro to mobilize people to investigate all the young ninjas in the elders' families.

The result surprised Uchiha You.

These young ninjas who are direct descendants of the Uchiha family, like Uchiha Itachi, live in large mansions and enjoy luxurious living conditions like the moon surrounded by stars.

But unlike Uchiha Itachi, they rarely go on missions, rarely come into contact with ordinary Uchiha clan members, and live a life almost isolated from the outside world.

So much so that Uchiha Yu, a guy who grew up in the lower class, subconsciously ignored the existence of these second-generation powerful people.

The survey results show that although these second-generation ninjas have good and bad personalities, they are all extremely naive, emotionally rich and sensitive.

For example, after Uchiha Shouta was beaten badly by Uchiha Yu and half of his teeth were lost, he upgraded his two-magatama Sharingan to a three-magatama Sharingan after he woke up in a mixture of shame and anger.

What's even more frightening is that he has an older brother, Uchiha Hayato, who, after seeing his younger brother's face swollen as big as a volleyball, also upgraded to the three-magatama Sharingan in anger.

It's so annoying.

These guys actually perfectly meet the conditions for awakening the Mangekyō Sharingan as identified by Uchiha Madara.

This means that even if Uchiha Yu sent Uchiha Obito to the Pure Land at the critical moment, Uchiha Madara's Infinite Tsukuyomi plan would not fail directly.

He also has a backup list, including a brother who can synthesize the Eternal Mangekyō Sharingan.

This is troublesome.

The elders' children all lived in large mansions, with ample guards and numerous servants around them, making it impossible to monitor them.

Uchiha You couldn't even arrange surveillance because his own men were at the front line, and the only people he could mobilize in the village were the two elders.

If they were asked to monitor the children of other elders, they would not be able to do so, and it would be easy for them to create rifts with Uchiha You because of sympathy for one's own kind.

After much deliberation, Uchiha You finally decided to give up monitoring these second-generation ninjas and instead adopt a more cruel plan.

After Uchiha Obito, the first target, was dealt with, if Uchiha You failed to find and kill Uchiha Madara, the hidden danger, he would have to turn around and eliminate all the powerful second-generations who could not be monitored.

It's very cruel, but his ability is limited, so he can only use this method.

Uchiha You and Uchiha Shinyin fell into silence because of the cruel topic just now, and the yard fell into complete silence until it was broken by a burst of cheerful laughter and cat calls.

Uchiha Shisui is back from training.

Uchiha Shinin's sorrow immediately disappeared, and with a smile on his face, he said to Uchiha You: "You haven't seen Shisui since you went to the front line. You will be surprised."

"It's been less than a year, how much can have changed?" Uchiha You turned his head and looked towards the door in surprise.

The first person to rush in was a small calico cat. This was the ninja cat Yaeko, who was introduced by Miwa Masayo and had signed a contract with Shisui. She was a ninja cat with excellent qualifications.

Then a sturdy figure rushed in, hugged the calico cat, and said with a smile: "I caught Yaeko."

Uchiha You was indeed startled. He looked him up and down carefully but didn't dare to confirm who it was.

The boy holding the calico cat saw him and shouted in surprise, "Brother You, is your confinement over?"

When Uchiha You heard this, he asked in disbelief: "Uchiha...Shisui?"

"Hey, it's me!" Uchiha Shisui proudly pointed at himself with his thumb and boasted, "Have you grown up a lot?"

Uchiha You nodded, he had indeed grown up a lot.

Uchiha Shisui is not even five years old yet, but he has already grown to 136 cm. In just nine months, his height has increased by 15 cm. He has grown a lot.

Uchiha You quickly asked, "Have you experienced any discomfort this year? For example, joint pain, muscle cramps, etc.?"

Shisui asked in surprise, "Hey, Brother You, how did you know that I had a muscle cramp?"

Uchiha You explained: "This is common sense, okay? Children grow fast and are most likely to suffer from muscle cramps."

Uchiha Shisui stuck out his tongue and glanced secretly at Uchiha Shinin. The old man's face turned slightly red. It turned out that he didn't know this common sense either.

Uchiha Shisui noticed the awkward atmosphere and quickly shouted, "Grandpa Xin Yin, I'm hungry."

"Okay, let's eat, let's eat right away."

"You, do you want to eat with us?"

"When I come, um... okay, let's eat together."

Looking at Uchiha Shisui's expectant eyes, Uchiha You naturally changed his words. Anyway, his stomach was big enough and the breakfast he had along the way was nothing.

After being influenced by Uchiha Yu, Shisui's family's breakfast is no longer the neon style, bland rice, natto and tofu kelp soup, but has become meat and vegetable buns, steamed dumplings, pot stickers, fried cakes and beef soup.

This full of Chinese flavor made Uchiha Yuya couldn't help but salivate.

But the one who ate more than him was Uchiha Shisui. The kid devoured two trays of steamed buns, a basket of siomai, some pot stickers in one breath, and drank two large bowls of beef soup with fried cakes.

Uchiha You and Uchiha Shinin looked at him and fully understood what it meant to be a little brat eating my father out of money.

Fortunately, Uchiha Shisui's family is very rich, otherwise an ordinary family would really go bankrupt.

Although Shisui eats less than a quarter of Uchiha Yuu's, Uchiha Yuu is a special case, and as a child, Shisui eats too much.

So, the worried Uchiha You stopped Shisui after dinner and gave him a physical examination to prevent his digestive system from being overwhelmed. It turned out that the child was... malnourished?

Confused, Uchiha You checked again and confirmed the result.

Digestive system: in excellent condition.

The blood circulation system is in excellent condition.

Endocrine system, excellent condition

Bones and bone marrow are in good growth and development, but are slightly calcium deficient.

The muscles and internal organs are poorly developed and severely malnourished.

Uchiha You was dumbfounded. Looking at Uchiha Shisui, who had grown a lot taller but was so thin that his ribs were protruding, he thought hard about how to find the reason.

Uchiha Shinin also realized that something was wrong at this time, and asked with concern: "Is there something wrong with this child Shisui?"

Uchiha You nodded and said, "Shisui is severely malnourished, which has greatly affected the development of his muscles and internal organs."

Old man Xin Yin was confused and asked in disbelief: "This child can eat ten times more than before, how could he be malnourished? Is he lacking something?"

Uchiha You pointed at Shisui's ribs and limbs and said, "It's malnutrition. Look, old man, there's no fat on his body, his bones are obvious, and his muscles are even stringy."

"What's lacking is calories and protein, oh, that is, oil, meat, noodles, and rice."

Uchiha Shisui and Uchiha Shinin looked at each other. These were the things Shisui ate the most. They all thought that what was missing were vegetables and fruits, which were the things Shisui didn't like to eat recently.

Uchiha Yuya knew that what he said seemed ridiculous, so he added: "Shisui does eat a lot, but for some reason it's not enough. His body is too thin. If this continues, there will be big problems."

It was extremely obvious that Uchiha Shisui was very thin. Shisui looked at his ribs, and he and Shin Yin had to believe that there was something wrong with his body.

So Uchiha Shisui looked up and asked, "Brother You, what should I do? Should I eat more?"

Uchiha You directly objected: "No, you already eat a lot, your digestive system has reached its limit, if you add more food, your stomach will have problems first."

"We still have to find the specific cause before we can prescribe the right medicine or solve the problem."

Uchiha Shinyin nodded and said: "You are right, we must first understand the problem before we can find a way to solve it. We can't act recklessly."

After thinking for a while, Uchiha You said, "Shisui, I'm going to do a deeper examination on you. If you feel uncomfortable, remember to tell me."

After saying that, Uchiha You called upon the natural energy and carefully infiltrated it into Uchiha Shisui's body. Through this power that he mastered the deepest, he sensed the natural energy and chakra that must exist in Shisui's body.

Get detailed information about Shisui's body changes through the most delicate feedback of natural energy.

The whole process was very time-consuming. It took Uchiha You two hours to complete all the examinations, but the results were surprisingly pleasant.

He patted Uchiha Shisui's shoulder and said, "Congratulations, Shisui. Your bloodline has awakened."

Uchiha Shisui asked in surprise: "Is it the Sharingan?"

Uchiha You corrected: "No, you are changing towards the source of the Uchiha family bloodline, which means you are reverting to your ancestor."

Seeing Uchiha Shisui's expectant and disappointed eyes, he had no choice but to say: "Yes, your Sharingan will be awakened soon."

Uchiha Shisui jumped up and down happily. He cheered and pulled Yaeko up to dance in the yard.

Uchiha Shinin came over and said, "You boy, what will happen if Shisui's blood returns to his ancestral line?"

Uchiha You replied: "It will awaken the Sharingan smoothly, upgrade without any obstacles, and directly open the Mangekyō Sharingan."

Old man Xin Yin asked in surprise: "Successfully awakened the Kaleidoscope?"

Uchiha You explained: "Let me give you an analogy. After Shisui's bloodline returned to its ancestral form, it became a tall giant tree. The bloodline of an ordinary Uchiha ninja is just a short bush, and the Sharingan is the huge fruit."

“For a small shrub to bear large fruit is a matter of life and death, but for a large tree to bear large fruit is a matter of course.”

Uchiha Xinyin nodded repeatedly, but he still asked worriedly: "Then what's the matter with his malnutrition?"

Uchiha Ou replied: "The consumption required to return to the ancestral bloodline is too great. Although Shisui's appetite is quite exaggerated, it is still not enough to make up for the shortfall in consumption."

Seeing that old man Xin Yin was anxious, he quickly said, "Don't worry, I can solve this problem."

"Do you remember the dried fish I gave you last year?"

"I remember it very well."

"I will give Shisui some dried fish. As long as he eats one every four or five days, it will be enough to make up for the energy gap."

“Even his appetite will return to normal.”

"Great, I feel relieved now."

In the afternoon, Uchiha You was taken by Shisui to introduce himself to the study club. He met with several captains who were in charge of management, and then spoke to several younger and older members.

Finally, he left with Uchiha Shisui after saying "Everything remains the same for now".

There is no new official who makes three big moves upon taking office because he judges that it is not appropriate now.

Although it was only a brief contact, Uchiha Yuya only chatted with the 12 captains for a few words, and he could see that each of these guys was not simple.

Those guys with provocative eyes and full of confidence should have the support of some elder or clan leader behind them. Those guys with wandering eyes and sweet mouths are definitely the rare scoundrels in the Uchiha family.

Not only is every captain a trouble, Uchiha You also discovers that they have secretly formed an alliance against him.

If you rush into the battlefield set by others without finding a suitable foothold, the result will definitely not be good.

So after he got the financial power promised by the patriarch, he left, leaving these people there to play with themselves.

Uchiha You was sure that these troublesome guys could not have harmonious relations. As long as he did not get involved, they would definitely make trouble on their own after losing their biggest threat.

When things got out of hand and they realized the study club didn't have much money left, it was the right time for Uchiha You to intervene forcefully.

The most important thing right now is Shisui's problem. It is not difficult for Uchiha You to replenish nutrition, but it is necessary to figure out why Uchiha Shisui's bloodline will revert to his ancestral lineage.

This is very important, very important to Uchiha Yu himself.

After returning to his home, Uchiha You solemnly taught Uchiha Shisui the Hundred Refinements Body Tempering Method, the Circular Refining Method, and the Meditation Soul Tempering Method.

Uchiha Shisui was a true genius. After watching Uchiha You demonstrate the Hundred Refinements Body Tempering Method once, he learned it directly and performed every move exactly correctly.

After practicing only twice, Shisui mastered all the essentials and achieved the maximum training effect.

At this time, Uchiha Shisui's sweat had soaked through his clothes, flowing down his trouser legs to the ground, forming a small puddle.

Uchiha Shisui said excitedly: "Brother You, this body-building method is amazing. It made me feel tired and my muscles sore in such a short time. The training effect is really great."

Uchiha You was delighted to find that Shisui had unconsciously improved three movements in just two practices, and the results were obviously better than what he had figured out.

He secretly memorized these three points, then asked Shisui to sit down and practice the cyclic refining method while his body was tired.

Generally speaking, it is extremely difficult to refine chakra when the body is tired, but it is the best time to establish meridian circulation for the first time.

As long as the circulation is established, the difficulty of chakra extraction can be greatly reduced, and the extracted chakra can stay in the body longer, which is of great benefit to the body.

This time, Shisui simply followed Uchiha Yu's instructions and successfully established the chakra circulation, but did not make any improvements.

Once the chakra circulation is established, you can start practicing the meditation and soul-tempering method.

This time, Uchiha You took action personally, guiding Shisui step by step into the state, allowing Shisui to experience perfect tranquility and soothing his nervous heart.

While practicing the Soul Tempering Technique, Uchiha Shisui's mind relaxed, and he fell asleep in a deep sleepiness.

Uchiha You picked up Shisui and carried him to his guest room so that he could have a good sleep.

Miwa Masayo asked curiously, "Why did Shisui fall asleep during training, meow?"

Uchiha You said with emotion: "He is too tired."

"Tired? He's still a child, meow."

"Uchiha Shisui is a very responsible kid. He knows there's something wrong with his body, but he's afraid that old man Xin Yin will worry too much, so he just endures it silently."

"It wasn't until I gave him enough confidence that he felt relieved."

"After entering a meditative state, the accumulated fatigue bursts out, and it is like falling asleep."