Konoha, Hokage's office.

“…… That's right......" Tsunade listened to the mission report.

"And then?" Tsunade.

"We're not going to give up!" Naruto said firmly.

"I knew you should go and rest first. "Tsunade.

"Yes. ”

After a day of rest, the next day, everyone came to the hospital to visit Kakashi.

“…… That's right, you're the new player Sakai, please advise me...... Kakashi.

"It's ......," Sakai thought, "This person is Kakashi Hachiki, who is also quite famous in Nezato...... He's sure he's looked into it beforehand......"

"That...... Kakashi-sensei, this mission ...... "Naruto didn't know what to say.

"Yamato told me, including Sasuke's business......" Kakashi.

"We don't have much time left, and if this continues, he'll be ...... soon" Sakura.

"And with our current strength, it's not enough to bring Sasuke back, he's just too strong......" Naruto.

"Well, then just make yourself stronger? Besides, even if the four of you can't do it, isn't there still everyone, no matter how strong Sasuke is, he can't beat all of us. However, you also have to grow quickly. ”

"What are we supposed to do?" Sakura-chan.

"I've already figured out a way, but this method only applies to Naruto, no, to be exact, this is something that only Naruto can do, through this cultivation, Naruto, on a certain level, you may be able to surpass me!"

"Beyond Kakashi-sensei?" Naruto was a little surprised.

"That's right, I will always be with you in this cultivation, so he is very different from previous cultivation. "Kakashi.

"That'...... What the hell am I going to do?"

"To practice the strongest ninjutsu of your own creation, in other words, you have to learn a new ninjutsu that surpasses Spiral Maru, and if you want to become stronger, you will have to put in a lot of time and effort. "Kakashi.

"A lot of time, but Sasuke ......," Naruto.

That's why I figured out what would work in a short period of time. "Kakashi.

"Yo, how's Kakashi's recovery?" Asma opened the door.

"Asma-sensei, you should knock on the door first, right?"

"Oh, Asma, I'm recovering well. "Kakashi.

"Ahh......h

"Hello!" Sakai smiled.

"Here's the thing......" Naruto explained.

"What the hell, I see. Ding Ji continued to snack.

"But it's better not to do such a dangerous thing. "Shikamaru.

"I see. "Sakai.

Shikamaru approached Naruto and whispered, "Sasuke's matter, Tsunade-sama has already told me, next time I encounter this matter, I will help from the side, anyway, that damn middle ninja exam is over." ”

"It's over so soon?" Naruto.

"Well, this year, because the battle between the God Slayer and the Alliance has heated up, in order to avoid being injured by mistake, a total of 36 people took the two exams this year, so it ended in 2 days. "Shikamaru.

"That's right......" Naruto was a little helpless.

（！————）

The third exercise ground.

"Let's start cultivating. "Kakashi.

"Hey, hey......" Naruto was inexplicably happy.

"What's wrong?" Kakashi.

"It's just that it's been a long time since I've been practicing with Kakashi-sensei, and I'm just a little excited. "Naruto.

"You can smile now. "Kakashi.

"So what to do first?" Naruto.

"In order to create ninjutsu that surpasses Spiral Pill, it is necessary to learn the nature and form changes of chakra. "Kakashi.

"What do you mean?" Naruto.

"In the case of Chidori, the chakra will become like an electric current that changes in nature, and then through the change of form, the range and power of the attack will be determined in the form of a discharge. In this sense, the Spiral Pill is different from Chidori in that it is a ninjutsu that maximizes morphological changes, allowing chakras to spin at high speed and create compression, so there is no need for a change in nature. "Kakashi.

"Hmm......" Naruto was confused.

"If you want to create ninjutsu that surpasses Spiral Pill, you must master the nature change. "Kakashi.

"In that case, let's start learning about the nature change!" Naruto.

"Let's use multiple shadow clones first. "Kakashi.

"Huh?" Naruto.

"This is the way to shorten the cultivation time. "Kakashi.

"What do you mean? "Naruto.

"I'll explain it all. "Kakashi.

"Please keep it simple. "Naruto.

"Let's use a shadow clone first. Kakashi, Naruto did so, and Kakashi's shadow clone took Naruto's shadow clone to the woods next to him.

"What are the shadow clones doing?"

"You'll find out later. "Kakashi.

After half a minute, the shadow clone lifted the summon on its own, and Kakashi said, "How is it? What did the shadow clone do?

"It's guessing, and it's me who wins. "Naruto.

"The shadow clone is different from a normal clone, it is more like a copy of the main body, and the experience points of the shadow clone will accumulate to the caster. "Kakashi.

"......" Naruto listened intently.

"If you use a shadow clone to have two people cultivate at the same time, your experience points will be twice as high as usual, right?" Kakashi.

"Hmm!" Naruto.

"That is, when two people cultivate compared to one person, they save half the time, if it is a thousand people, it can take a week to complete the cultivation that one person can complete in ten years. "Kakashi.

"Oh! and this way!" Naruto.

"Then there is the nature of chakra, to put it simply, it is the so-called fire escape, water escape, a total of 5 basic properties. "Yamato.

"5 kinds, so few?" Naruto.

"No, it's just basic nature, but 99% of ninjas can only use basic nature, that is, the five types of fire, wind, thunder, earth, and water, and the name of the five great ninjas comes from this, and they are also the foundation of all ninjutsu. For example, Chidori is Thunder Ninjutsu. "Kakashi.

"In other words, Sasuke has two natures, fire and thunder. "Naruto.

"This is a chakra test strip, which can detect the nature of the chakra, just inject the chakra into it. Kakashi took out the chakra test strip and gave a demonstration, "For example, after I injected the chakra, he became wrinkled, so my chakra nature is thunder." You can give it a try, too. Kakashi handed the chakra test strip to Naruto.

After Naruto got the test strip, he began to inject chakra into it, and then the test strip cracked.

"Your chakra nature is wind. "Kakashi.

"Wind?" Naruto.

"It's a chakra that can cut through everything and has superior combat effectiveness. "Yamato.

"Oh~ so I'm so good!" Naruto.

"No, I just said it, there are 5 natures, which means that about 20% of ninjas also have wind chakra. "Kakashi.

"By the way, what kind of nature does Captain Yamato's wood escape belong to?"

"That's the Blood Inheritance Limit, it's a very rare chakra nature, and I can only use water and earth. "Yamato.

"Blood Limit?" Naruto.

"It is the chakra that uses two basic properties at the same time, such as Yamato's Mu Dun, which uses both earth and water at the same time, and produces a new nature of wood, and this new property is called the Blood Inheritance Limit. "Kakashi.

"It's not difficult to use both properties independently, but it's a different story to use them at the same time. "Yamato.

"Do you remember the young man Bai who fought with us, the Ice Escape he used also belongs to the Blood Inheritance Limit, but he used both wind and water to produce ice, which is a unique technique for the family with the Blood Inheritance Limit, and even my writing wheel eye can't be copied. "Kakashi.

"White too...... And what about Shikamaru's shadow technique, and Dingji's doubling technique?"

"Let's not talk about the changes in the nature of yin and yang, I'm afraid of confusing you, let's hurry up and cultivate. "Kakashi.