"Old man, you were so brave just now!" Naruto followed Sarutobi and began to slap his ass, looking like a dog.

"Stinky boy, I haven't said you yet, can you stand it now? Five tails also burst out. ”

"Hehe, I didn't kill them perfectly." Naruto decisively diverted the topic, "Let's not talk about this yet, old man and Aunt Snake, I got something good from the Land of Snow this time!" Let's go and go to my institute to open your eyes. ”

Naruto pulled Sarutobi in one hand and Orochimaru in the other, and walked towards his chakra institute.

The ninja who passed by dropped his jaw in shock, "Who is that kid?" He actually dragged Hokage-sama and Orochimaru-sama away. ”

"You're new here, aren't you?" An old dark man next to him asked.

"Ah yes, hello seniors, I'm a newcomer to the dark department, please advise." After saying that, there was a textbook 90-degree bow.

Seeing that the newcomer respects his predecessors so much, the old dark department does not hold a stand, "He is our Konoha Prince, and his father Bo Feng Shui Gate." ”

"What!? He is actually the orphan of the four generations of Hokage! Heiji was taken aback, and secretly said in his heart, no wonder he dared to pull Hokage-sama and Orochimaru-sama together.

He is still a nine-tailed pillar force, but this sentence was left in the mouth of the old dark department, and he did not say it.

"Don't look at his young age, it's said that he has killed the elite Shangnin!" The old dark department couldn't help but talk, and picked a thing that could be said to the newcomer.

"How is this possible? How old is he! The newcomer was surprised.

The old dark department looked at the newcomer and was startled, a little proud, "What's this, Naruto has something more powerful, I tell you, don't you say it......"

……

The Konoha Village Chakra Institute of Science and Technology, the Land of Fire.

"Hello Hokage-sama and Orochimaru-sama, I'm ......"

"Old man, Aunt Snake, this is my little assistant, let's go over quickly." After speaking, he pulled the two of them into the research institute in a hurry.

The assistant who followed behind was full of resentment, and he used to call the assistant directly without calling me by my name, but now he has to add a small word, and the smell is getting more and more excessive.

I heard that I was beaten badly by Yun Yin?

The little assistant swept it with his afterglow, and after seeing that Naruto was intact, he let out a cold snort.

After a while, the group walked through the long hallway to a door made of pure chakra alloy, and Naruto stepped forward to verify his identity.

"Drip, poof!"

The metal door slowly opened, and the mermaids entered.

I saw three things in the center of the empty research room, a pair of pierced armor, a stone, and a huge machine!

"Why is this armor broken with a big hole?"

"Ahem, there's no need to worry about this little detail." Naruto reached out and touched the entire armor into the ring, and then lifted the Grell Stone next to him.

"It was a bonus. It is called the Stone of Greel, and it is said that humans in ancient times used the Stone of Grell to create a glorious civilization. ”

"Then how did this glorious civilization disappear later?" Sarutobi asked.

"Don't interrupt, old man! How do I know why they disappeared. ”

"Ahem, you continue, you continue." Ape Fei Ri slash smiled awkwardly.

"Once...... Forget it, let's just say it, this Grell Stone contains a huge amount of energy, which can be used to replenish chakra, and most importantly, replenish vitality! ”

"If there is such a Grell Stone when you are injured, it is equivalent to having a powerful medical ninja who releases ninjutsu healing at all times."

"In addition, it can also strengthen the human body, of course, if you don't grasp the amount well, it will be an accident."

Hearing Naruto's introduction, Sarutobi Hiza and Orochimaru were shocked.

If this Grell Stone really has the effect that Naruto said, then the Grell Stone will definitely become a strategic material for each ninja village!

The various ninja villages will fight for the Grell Mine!

For example, in the next war between Konoha and Yunyin, if Konoha can get a Grell Stone in his hands, then he can replenish Chakra at any time, which greatly increases the combat time of the ninja!

The most important thing is that the injury can be treated in time, and the casualty rate of Konoha will be greatly reduced!

Just as Tuan Zang thought, Sarutobi Hizap had already decided to start a war, and only by beating Yun Yin painfully, the entire ninja world would not dare to make a move against Konoha. Now all the ninja villages are almost at a low point, and only Yun Yin, a madman, still wants to provoke a war!

And unlike Sarutobi, Orochimaru is more concerned about the strengthening effect of the Grell Stone, "Naruto-kun, I guess you're so keen to find this Grell Stone, not just because of its healing effects, right?" ”

"Aunt Snake is right! After my secret experiment last night, I found that when used in conjunction with the Foundation Building Circle, the Stone of Grell can not only extend the time, but also increase the effect! In the end, the effect has multiplied several times! ”

"Naruto-kun, you seem to have slipped your mouth." Orochimaru smiled as he watched Naruto get beaten.

According to Naruto, the combination of the Grell Stone and the Foundation Formation can make a person's chakra multiply dozens of times!

"I really can't imagine how powerful the children of the ninja school will be after graduation." Orochimaru sighed.

"Aunt Snake, with me here, how can I lack you, when Uncle Kakashi brings the Grell Stone, I will send it to you immediately."

Feeling that the strength of Sarutobi's slashing and beating was increasing, Naruto hurriedly made amends, "And the old man yours, yours, don't fight." ”

Sarutobi slashed and put down Naruto with a snort.

Naruto, who had returned to the ground, patted his pants and immediately returned to the way he was just now, as if he was not the one who had just been beaten.

"Next is a more powerful ......"

No one cheered, which made the atmosphere very awkward for a while.

Feeling the death gaze, the little assistant had to stand up, "What's more powerful?" ”

"Geothermal installation!"

"What for?"

"Absorbing geothermal heat changes the environment."

"Oh, that's amazing."

Seeing the lack of interest in Sarutobi and Orochimaru, Naruto couldn't help but feel that everyone in the world was drunk and I was awake.

"Alas, I thought I was just an ordinary little genius, but I didn't expect that I was a madman who surpassed everyone else." Naruto sighed with his hands behind his back.

"Don't sell it." Sarutobi slashes a brain melon to bring Naruto back to reality.

"The biggest effect of this device is to convert other energy into chakra!" Naruto looked at Sarutobi and Orochimaru expectantly, can you understand this?

"Naruto, refining chakra, isn't that every ninja who can do it?" Worried about hitting Naruto, Sarutobi asked in a low voice.

"What is the most important thing in the ninja world? O Chakra! "Naruto is finally going crazy.

"Even the Big Barrel Wood clan is tirelessly pursuing Chakra!"

"Naruto, who is the Otsuki clan?"

"That's not what the plot can tell now."

"Oh."

"No!"

Ahem, Naruto really wanted to give himself a slap in the face, and said it was smooth.

Seeing that the people present didn't understand his little yellow car, Naruto continued to explain, "If the Grell Stone containing a large amount of chakra is a gold mine, then the geothermal device that can produce chakra is a money printing machine!" ”

"With more chakra, you can make more chakra metal, let more people use the foundation building circle, cultivate more and stronger ninjas, and equip each ninja who goes out on a mission with dozens of hundreds of chakra batteries!"

This time, Sarutobi and Orochimaru understood what Naruto meant.

"In this way, this device is no less important than the Grell Stone, Naruto-kun, how many chakras can this device produce in a day?"