They were just talking about Sharingan, and the main thing was that Sasuke was concerned about Itachi's reaction and asked him why he had that reaction.

Itachi didn't say why, just changed the subject and asked Sasuke if he knew anything about writing wheels.

Sasuke nodded, of course.

Kusuo Uchiha, who was being watched by Itachi, also nodded, as long as it was Uchiha, anyone would know about this, right? It's just a matter of understanding the depths of understanding.

"There are many legends and studies about the writing wheel, and you should also know that there are certain conditions that need to be used to inspire the writing wheel." Itachi touched his eyes and said, "When the people of the Uchiha clan feel [love] and then lose it, the feelings of [love] will transform into more powerful [hate]. ”

He lowered his hand and looked at his two younger brothers: "In other words, when the Uchiha clan feels the pain of losing [love], a special chakra will invade our brains and change our eye nerves, resulting in a mutation of the eyes, which is the opening of the eyes. ”

He opened the writing wheel eye, and the three black magatama slowly rotated in the blood-colored eyes: "After opening the eyes, our eyes will turn red, and the eyes will produce magatama." The more magatama there is in the eye, the stronger the power of the writing wheel eye, and at most I am now with the three magatama. ”

Sasuke still can't control the writing wheel eye as he wants, so he held it for a while before letting the writing wheel come out, looked in the mirror and said, "I just hooked the jade ......"

"Don't rush, take your time." Itachi closed the Sharingan, "It's not all a good thing to open the Sharingan, Sasuke, try not to use it usually." ”

As he spoke, he also secretly observed Kusuo Uchiha for a while.

[Sasuke and I have opened our eyes, will Kusuo care more? ] If so, how can I comfort him? 】

Kusuo Uchiha: [......]

Not really, don't worry.

"Why? What's not going to be good? Sasuke looked in the mirror for a while, and it was easy to turn it off.

Itachi beckoned to him.

Sasuke sat beside him blankly.

"How do you feel after using the Sharingan?" Itachi gently pressed around his eyes.

“…… It's a little sour, a little stinging. Sasuke said, "It's still dry." ”

"That's it." Itachi beckoned Kusuo to sit down with him, "The use of the writing wheel eye is very harmful to the body, and I said before that the writing wheel eye uses a special chakra. That kind of chakra is different from ordinary chakra, it is a very cold energy, which is very harmful to the body, especially the eyes, and if you use it wantonly, the eyes will quickly go blind. ”

Sasuke: "??? ”

He looked at the ferrets in horror, he had never heard of this before!

"This is the secret of the Uchiha clan, and it is also a weakness that ordinary people will not know." Itachi said.

"What about Kakashi-sensei?" Sasuke suddenly remembered Kakashi, "That's right, brother! Why does Kakashi-sensei have the writing wheel eyes of our Uchiha family? ”

"It was given to him by a friend of his." Itachi said.

"Who is it?" Sasuke was surprised, "Can the writing wheel be given away?" ”

Kusuo Uchiha: [......]

His attention was drawn back from Kakashi's chat with Shikaku Nara.

Kakashi, why are you again?

Kakashi, such a miserable man.

Also, Sasuke, you're a real chatterbox.

Itachi was stuck for a few seconds before he said helplessly, "Of course not, Kakashi's predecessor was an accident." At the time of the Third Shinobi World War, Kakashi's predecessor's teammate was an Uchiha named Uchiha Obito. He died during a mission, so before he died, he gave an intact Sharingan to Kakashi-sen, who happened to lose one eye at the time. ”

Such a heavy topic made Sasuke's jumping brain think quiet for a moment, and then asked a new question: "Can it be used directly?" ”

Kusuo Uchiha gave him a thumbs up for his question, which he had always wanted to complain about.

"Because Kakashi's senpai has a special physique." Itachi pondered, "This is also what I will talk about later, you should have also discovered that his writing wheel eye cannot be closed, which is undoubtedly very dangerous." Moreover, Kakashi's predecessors themselves have very little chakra, and the chakra required for the writing wheel eye is very large, so he generally does not use the writing wheel eye easily, and he usually hides it all the time. In this way, even if it cannot be closed, it minimally protects the writing wheel and his own body. ”

"I see." Sasuke immediately remembered that Kakashi had fainted after using the Sharingan too much in the battle against Zaibu, and even now he was unable to move.

"So if you don't need to write the wheel eye, don't use it." Itachi emphasized to Sasuke, "It's too damaging to your body, you're still young, you're still growing your body, and the Sharingan is even more damaging to your body." I know you want to get stronger, but you still have a lot of time, you can take your time and not rush too much. ”

"But brother, you're the same." Sasuke glared at him, "I don't even know when I became Sangotama!" ”

Itachi blinked and immediately changed the subject: "Regarding the writing wheel, the second Hokage-sama had such a theory. ”

Kusuo Uchiha: [......]

The topic shifts so bluntly.

Well, but he knows about it, so he won't ask.

Sasuke: "??? ”

Itachi continued, "The second generation believes that the Uchiha family's chakra is an evil existence, and the Uchiha clan, who have learned the taste of feelings, will be replaced by hatred that is even stronger than before, and people's temperament will also change greatly. He said he had witnessed it countless times, and that it was often accompanied by a very specific symptom. ”

"What are the symptoms?" Sasuke was easily distracted.

"The Uchiha clan has always attached great importance to feelings, so once they lose an important person, it becomes extremely extreme and dangerous, and they can do anything for it, even if it is a great price."

"After his research, the formation of the writing wheel eye is because of the acceptance of great negative emotions, and the writing wheel eye can synchronize with the power of the heart, so that the strength of the individual becomes stronger rapidly, but the power of hatred in the heart also becomes stronger."

"Among the Uchiha clan, there are many people with delicate emotions, and those who awaken with strong emotions will be bound by the darkness and fall into evil darkness. The deeper the darkness in his heart, the stronger his pupil power becomes, just like Madara Uchiha-sama. Itachi sighed.

Kusuo Uchiha who was scared out of the Sangotama by the bugs: [......]

I think it's just stimulated when the mood swings are too great, it's not that exaggerated, right? It's not all Uchiha who open their eyes because they have lost important people, for example, who is that......

But apparently Itachi thought so, and Sasuke also showed a thoughtful expression.

"Of course, I don't agree with him that the Uchiha are inherently evil." Itachi touched Sasuke's head, which had a pensive expression, and said, "But the power of the Sharingan is indeed very dangerous, and if you could, I don't even want you to have such a power." ”

Kusuo Uchiha nodded.

Don't worry, he won't let people find out that they have their eyes open.

The waste material of the Uchiha clan, he likes this character very much.

Anyway, even if it's the Uchiha clan, there are only a few people who open their eyes, and at most he is a little more conspicuous because of the comparison between the two excellent brothers.

If he also opened his eyes and revealed that it was Sangoyu, Konoha would have exploded.