Hearing Yusuke bring up the term 'rail problem', Itachi shook his head, indicating that he hadn't heard of it.

(It's a special note here that there are trains in the Hokage world!!) )

"On a railroad track, five people were tied; On the branch track of this track, a man is tied. At this time, a train is speeding by, and you are holding the lever that changes the track of the train. ”

"So, would you choose to pull down the lever and trade the lives of this one person for the lives of these five people?"

Yusuke slowly recounts the famous 'rail problem' in his previous life.

Although Itachi hasn't answered yet, Yusuke has roughly guessed what choice Itachi will make.

Itachi only thought for a moment, then replied, "I'll pull down the lever!" ”

Yusuke nodded and continued to ask, "Then if there are five people who have problems with their hearts, liver, spleen, lungs and kidneys, as long as they can replace them with healthy organs, they can survive." And at this time, a healthy person appeared. ”

"Would you choose to kill this healthy person and exchange his healthy heart, liver, spleen, lungs, and kidneys for these five people?"

Hearing Yusuke's question, Itachi shook his head, "No. ”

As soon as he finished answering, Itachi looked at Yusuke's smiling expression, as if he understood something, but he couldn't grasp the key point.

"Teacher, these two questions of yours make me even more unsure of how to make a choice." Itachi's eyes became confused.

"Life cannot be measured by quantity alone, you have no right to take the life of another person for the sake of five people!" Yusuke said slowly.

"And the contradiction between the village and the family should not be sacrificed to complete the village simply because the village is large and the family is small."

"The family is not necessarily wrong, and the village is not necessarily right."

"If the village's strategy against the Uchiha is wrong, should we compromise as well?"

Faced with Yusuke's question, Itachi didn't know how to answer, so he was silent for a moment and asked, "But Shisui said that familialism is narrow-minded!" If all the families of Konoha are selfish and don't think about the village, then what will happen to the village? ”

Hearing Itachi's words, Yusuke sneered.

"The so-called narrowness is just the value of stopping water and simply measuring it by quantity!"

"If familialism is narrow in the village, then isn't village supremacy also narrow in the entire ninja world?"

"If one day, sacrificing our Konoha Village can save the other four ninja villages, will you do it?"

"I'm sure you're a smart kid and you'll be able to figure out what we're really supposed to be protecting! See where you stand and don't let down the people who really care about you! ”

"I'm not asking you to choose between the village and the family, I'm just asking you to think clearly, don't take it for granted that the family should sacrifice for the village just because the village is above the family!"

With all that to say, Yusuke patted Itachi on the shoulder and got up to leave. Leaving only the ferret, still engaged in a fierce ideological struggle, Itachi thought alone.

For the next few days, Yusuke didn't see Itachi.

At this time, several of Yusuke's disciples already have a good foundation, and there is no need to practice under the guidance of Yusuke as at the beginning, so they no longer train together at a fixed time and place.

Dou was raised by Yusuke to be a scientific otaku and was obsessed with ninjutsu development and experiments all day long. And Izumi, who worships her brother, is equipped with a sword and begins to practice Uchiha-ryu swordsmanship.

At this time, on the training ground of the Uchiha clan, Izumi, who had finished performing a set of swordsmanship, asked Yusuke with an expectant expression, "Brother, how do you think of my current swordsmanship?" ”

"Yes, I've reached the level of the middle ninja." Yusuke nodded.

Hearing Yusuke's words, Izumi was dissatisfied: "What, it's only at the level of forbearance." ”

"You girl, you want to fly before the road is done." Yusuke shook his head and smiled.

At this moment, Itachi also came to the training ground and walked towards the two of them.

Looking at Itachi's clear, determined gaze, Yusuke knew that he had figured it out.

"Teacher, what you said a few days ago, I have thought it through!" Itachi looked at Yusuke and said seriously.

"So what are you going to do next?" Yusuke asked.

"I will work hard to cultivate and make myself strong enough to change the family and the village."

"If I didn't have that talent, I would do my best to protect the family and the important people around me!"

Itachi said firmly.

While speaking, Itachi's eyes looked at Izumi on the side.

The first time she was stared at by Itachi's inexplicable gaze, Izumi lowered her head shyly, and her cheeks flushed.

"Worthy of being my disciple, Itachi, I'm sure you can do it!" Yusuke was also very relieved at this time.

As for Itachi's disciple's thoughts, Yusuke is also unpredictable. I wanted to talk to each other about the village and my family, but I never had the opportunity.

Now that Itachi can give up the dangerous idea of sacrificing his family to complete the village, Yusuke can be regarded as letting go of a heart.

Let Itachi continue to accompany Izumi to practice swordsmanship, and Yusuke returns to his laboratory. This laboratory was specially requested by Yusuke and Uchiha Fugaku at the family residence, and was specially used for themselves and Dou.

After Yusuke and Orochimaru joined forces to complete the 'Liangyi Curse Seal', he has been thinking about developing the 'Reverse Liangyi Curse Seal', which is a spell mark specially used to seal the Yang Dun Chakra.

The Liangyi Spell Seal is based on the cells between the columns, and uses its powerful Yang Dun power to seal the Yin Dun power; In the same way, the Reverse Liangyi Mantra Seal needs to be based on the powerful materials of Yin Dun power to seal the Yang Dun power.

"If the intercolumnar cells represent the ultimate power of the yang retreat, then what is the corresponding material that represents the extreme power of the yin retreat?"

"Could it be Madara's soul fragment? Where can I get this? ”

Although there is a theoretical method, Yusuke has never had a clue about the material that represents the ultimate power of Yin Dun.

After conducting various experiments with Hedou, no suitable solution was found. Although some spell seals have also been developed, they have never been able to reach a level that is enough to seal the Tailed Beast-level Yang Escape Chakra.

Two months have passed in a flash, and while Yusuke is busy with the development of the spell seal, another big event has happened in Konoha - Orochimaru, one of the three ninjas, defected from the village!

Because in this life, there is Yusuke, an academic friend who can exchange ninjutsu, and Orochimaru's strength is much stronger than in the original book.

Not only was he not injured by the conspiracy of the three generations of detonators in the original book, but at the same time, in the process of defecting, he also seriously injured Jiraiya, who was also one of the three ninjas.

And after Jiraiya finished recuperating from his injuries, regardless of the retention of the three generations of Hokage, he resolutely left the village to find the traces of Orochimaru, hoping to bring Orochimaru back to the village.

At this point, all the three ninjas have left Konoha Village, and the era of the three ninjas of Konoha is officially over!

Shortly after that, the Konoha higher-ups received an invitation letter from the Alliance Sand Hidden Village.

The Hokage Building, the office of the third generation.

Yusuke is standing at the desk of the third Hokage with another Konoha Kamishinobi Baiyun Hayama, listening to the content of the upcoming mission.

"This time the sand shinobi sent a letter inviting Konoha to take their middle ninja exam."

"As a strategic alliance, we should also send a few teams to participate in this exam, not only to maintain the friendly relationship between the two villages, but also to show the strength of our Konoha Shinobi."

Looking at Yusuke and Baiyun Leaf Mountain in front of him, the three generations said slowly.

Baiyunye Mountain is a veteran elite Shinobi of Konoha Village, who wears a ponytail and a scar on his right lip, and is good at using Konoha Ryu swordsmanship.

He is calm, meticulous, and has excellent command skills, and has been active on the battlefield during the Second Ninja World War, and has made a lot of contributions to Konoha Village.

"This time, we Konoha have selected six elite shinobi to form two squads. I asked the two of them to serve as a guide to Shangnin and lead the team to go to Shayin Village to participate in this Zhongnin exam. ”

"Hayama, Yusuke, both of you are good at the upper ninja, this time you can also give more guidance to these elite lower ninjas to help them get good results in this middle ninja exam."

After the three generations finished speaking, Hayama and Yusuke immediately agreed, saying that they would definitely live up to their mission.

Originally, the three generations wanted to arrange for Yusuke and Kakashi, two young shinobi, to go to the Sand Hidden Village to show their faces. In the current period when the village is at its weakest, allowing each ninja village to see the rising stars of Konoha can also play a certain deterrent role.

It's a pity that Kakashi's father, White Fang, has a lot of grudges with the Sand Ninja Village, so it's not suitable to send him there, so he can only arrange for other shinobi to replace Kakashi.

"Three generations of adults, may I ask who are the lower ninja who will take the middle ninja exam this time." Yusuke asked Miyo.

For this mission, Yusuke actually knew in advance. Because his disciple Itachi was also selected as one of the lower ninja to participate in the middle ninja exam.

It's just that Yusuke didn't expect that he would lead the team to Sand Hidden Village as a guide.

The third generation gently explained a few words to the assistant beside him, and the assistant quickly brought the six shinobi from outside the office to the office.

Yusuke glanced at it and recognized everyone. It is worthy of being carefully selected, and sure enough, they are all the elites of the lower ninja, and they are all characters with names and surnames in the original work.

In addition to the known Itachi, the other five shinobi are Moonlight Tempest, Utsuki Yuyan, Mizuki, Umino Iruka, and Mitarai Azuki.

Itachi aside, except for Iruka and Mizuki, who are relatively watery among the five lower ninjas, the others are very good, and they all became special ninjas later.

The six shinobi are not very old, Itachi is only seven years old, and the eldest Mizuki is only thirteen years old. At this time, except for the red bean, everyone else seemed very excited.

Because of Orochimaru's defection, the red beans in this period are not as full of vitality as when Yusuke saw them before, but have a gloomy face.

After Orochimaru's defection, Azuki was detained. After many rounds of interrogation, it was determined that she was not involved with Orochimaru, and she was freed, but she also changed from the original rising star to an ordinary shinobi.

And Orochimaru, who is most trusted and admired the most, abandoned her and defected from Konoha alone, which also hit her deeply and couldn't let go for a long time.

Looking at the six shinobi lined up, the three generations said slowly to Baiyun Yeshan and Yusuke: "They are all good players selected from the lower ninja, you can choose freely and form two teams." ”

After the three generations finished speaking, they handed over the rest to Yusuke and the others.

Bai Yun Yeshan looked at the six shinobi and said to Yusuke, "These children seem to admire you." It's better for you to choose first, and when the time comes, they will complain about me. ”

Due to Yusuke's young age at this time, he was already famous, and he was also a well-known genius ninja in the entire ninja world. Except for the red bean who has been keeping his head down, the eyes of the other shinobi looking at Yusuke are more or less full of admiration.

Yusuke smiled: "Hayama-senpai, your words will make me embarrassed. ”

"But since you are so humble in your seniors, it is better for the younger generations to be respectful and obey your fate."