"Shadow Clone Technique? What is that?" Naruto asked doubtfully.

Naruto hasn't enrolled at the Academy yet, so he doesn't know anything about it.

However, even if he is enrolled at the Academy, it is estimated that Naruto still won't understand as he usually never listen to the lesson.

Kakashi is not surprised by this and starts to explain.

"This Ninjutsu is a technique to make clones, it's a B-Rank Ninjutsu, it's amazing."

"What is B-Rank Ninjutsu?" Naruto scratched his head, apparently he still didn't understand.

"Ok, I will explain it from the beginning."

"The necessary energy for shinobi is Chakra. I have already told you about this yesterday. Shinobi's Attack method is divided into three basic types, Ninjutsu, Genjutsu and Taijutsu. These basic types of attack method then divided into several levels."

"There are C-Rank, B-Rank, A-Rank and S-Rank. And what I want to teach you is B-Rank Ninjutsu, do you understand?"

"What? Only B-Rank? It doesn't seem to be very powerful then."

"Don't be greedy Naruto."

Kakashi looked at Naruto while looking stern, and made Naruto's body tense. Naruto then said, "Ok, I will learn this."

"It's good that you are optimistic, this is the hand seals for using the Shadow Clone Technique."

Kakashi said as he starts to form hand seals using his hand, and his chakra flowing with a special way inside his body, then a burst of smoke appeared, and another Kakashi appeared from the smoke.

"Naruto, can you see it clearly?"

At this time, Naruto had already been stunned and his speech was stuttering.

"Good… great, Shiro Nii-chan."

"Hey, do you understand?" Kakashi asked again.

"Then should I try it?"

Naruto said with some uncertainty that although it looks very simple, it seems to be not that simple.

Naruto thinks it's weird, but he still wants to try it.

"Okay, then you can try it."

Kakashi then let Naruto tries. He is looking forward to this. After all, this is Naruto's signature Ninjutsu in the original work. He wants to see if Naruto can learn it this time.

Naruto seeing Kakashi is looking at him is slightly nervous and he silently cheering for himself.

"Naruto! You can do it!"

Naruto shouted after encouraging himself in his mind.

"HAAHH! Shadow Clone Technique!"

Kakashi then saw that Naruto was surrounded by blue Chakra. The amount of this Chakra has already exceeded the needed amount to use Shadow Clone Technique.

He is using too much chakra!

In this case, Shadow Clone Technique will be unsuccessful.

Sure enough, with a bang, Naruto had a deformed humanoid object next to him, and the scene became silent for a while.

Naruto then yelled while holding his head: "Aaaaaahhhh, how could this be! How could it fail?"

Kakashi sighed 'Sure enough, he still can't do it.'

Seeing Kakashi sighing, Naruto thought that his performance has disappointed Kakashi, and Naruto is anxious.

'No, no, I can't disappoint Shiro Nii-chan, otherwise, I will be left alone again, no, absolutely not!'

"Shiro Nii-chan, it is an accident just now, I can do it! Let me try again."

Naruto said, once again, forming hand seals and his whole body was shaken by Chakra.

"What!!"

Boom!

A new group of deformed objects appeared in front of the two again.

"Aaaaaahhhh! How could this be!"

Naruto apparently is feeling helpless.

But Kakashi knows the reason why he failed.

When Naruto launched this Ninjutsu, Kakashi could feel that there was some of Kyuubi's Chakra flowing from Naruto's seal.

'It seems that the Kyuubi is already affecting Naruto now.'

Kakashi quickly concluded in his heart.

"Okay Naruto, you don't need to try again."

Kakashi pulled Naruto who still wants to try again.

"Shiro Nii-chan, I'm sorry, but I can do it, just give me another chance."

Naruto said that his eyes were a little red, and it seemed that he could cry at any moment now.

Kakashi seeing this is feeling some kind of discomfort. He didn't expect Naruto to have such deep feelings for himself. After all, they only just meet yesterday.

Now, just because he is afraid of my disappointment, he is saddened to be like this. It feels a little distressing.

"Naruto, it's not your problem. Wait a minute."

"Ah? What do you mean?" Naruto widely looking at Kakashi with his sky blue eyes, he doesn't know what Kakashi means.

Kakashi pull up his headband directly, and unseals his Sharingan. Then the tomoe starts to rotating.

When Naruto saw the Sharingan, he fainted and fell directly into Kakashi's arms.

"Naruto, take a good sleep, you should rest for now. I will help you check the problem."

Inside the seal, it looks like the structure of a sewer.

"Is this the place where Sensei seals the Kyuubi?" Kakashi looked around and found that the environment here was really not very good, and it was difficult for Kyuubi to live here for so many years.

His foot is now in the water, seeing this Kakashi attached Chakra to the soles of his feet and starts walk on the water.

Soon, a huge cage appeared in front of Kakashi.

"Is this Sensei's seal?"

Kakashi looks at the cage that is as high as 100 meters, and he can't help but feel a little emotional.

At this time, a pair of lantern-like eyes appeared in Kakashi's field of vision.

"Human? It seems there is human coming in. Hahaha, it's really interesting. How long have it been since the last human come? Humans, go a little closer."

Kakashi hearing this then takes a few more steps forward.

"Yes, yes, that's it, move closer."

When Kakashi is five meters in front of the cage, he suddenly stopped and said, "Kurama, your Genjutsu has no effect on me."

Kyuubi's pupils shrank, not because Kakashi cracked his Genjutsu, but because Kakashi actually called his name.

"Human! Who are you! How do you know my name?"

Kyuubi then roars, a huge whirlwind appears in the Seal Space, at the same time a huge claw stretched out from the gap of the cage.

It's no wonder that Kyuubi is suprised, after all, the only one that knows his name except the other eight Bijuus, is only the Sage of Six Paths.

And this person actually knows about it, that it is really difficult for Kyuubi to understand.

"Ah, that is not important. Can you quietly listen to me now?"

Kakashi said that as the Sharingan in his left eye slowly turned into a black dart shape.

The Kyuubi also calmed down, and his ice-cold voice was filled with indifferent.

"Mangekyo Sharingan! You are an Uchiha clan member? How is it possible! Is there anyone else who can open the Mangekyo?"

The voice is indifferent, but there is a hint of fear.

Kyuubi will never forget the fear that he was once dominated by Sharingan.

The man named Uchiha Madara is simply using him as his pet!

He knows that Mangekyo Sharingan is something dangerous.