"That's awesome!" Naruto jumped up excitedly, "With these Chakra, Sealing Array, there will be no problem!"
"Don't be too happy too soon." Nagato shook his head, "Although these Chakra are powerful, they are also very dangerous. If used improperly, they may backfire."
"What kind of dangerous method?" Sasuke asked.
"Everyone's Chakra has its own characteristics, and forcibly merging different Chakra will cause conflicts." Nagato said seriously, "In mild cases, the meridians will be damaged, and in severe cases, the body will explode and die."
Everyone's excitement subsided instantly.
"What should we do?" Mina asked worriedly.
"We need a medium." Nagato looked at Naruto, "A medium that can integrate all Chakra."
"You mean me?" Naruto pointed at himself.
"There are Nine-Tails in your body, and the Chakra of Nine-Tails has strong Inclusion properties." Nagato nodded, "Theoretically, you can serve as a medium to unify these Chakras."
"Sounds very dangerous." Sasuke frowned, "What if something goes wrong?"
"Then we have to give up the reconstruction plan." Nagato sighed, "There are not enough Chakra, Sealing Array cannot start."
Naruto was silent for a moment, then nodded firmly. "I am willing to try."
"Naruto..."
"It's okay, Sasuke." Naruto patted his shoulder, "This is what I should do. Land of Whirlpools is my mother's hometown, and I can't let it continue to be abandoned."
"Then, let's start preparing." Nagato said, "But before that, I need to teach you some special skills."
In the next few days, Nagato began to teach more advanced Fuinjutsu. These techniques were much more complex than those previously learned and required extremely precise Chakra Control.
"The core of Fuinjutsu is balance." Nagato explained while demonstrating, "Different forces must achieve a perfect balance, otherwise they will get out of control."
Naruto studies very seriously, but always makes mistakes in details.
"No, the angle here Runes is off by three degrees." Nagato pointed out his mistake, "Try again."
"Why do you have to be so precise?" Naruto complained, "It shouldn't matter if it's almost, right?"
"It could almost cost you your life." Nagato said sternly, "Fuinjutsu can't tolerate any sloppiness."
Sasuke watched from the sidelines and occasionally gave suggestions. Although he did not know Fuinjutsu as well as Naruto, his observation skills were very keen and he could detect some subtle problems.
Karin is responsible for detecting the flow of Chakra. Her perception ability comes in handy at this time.
"Naruto, your Chakra is blocked at the seventh Node." She reminded.
"Where?" Naruto stopped and felt carefully.
"That's it, adjust the flow a little bit."
After repeated practice, Naruto finally mastered the basic skills. But Nagato told him that this was not enough.
"The real challenge is to fuse the Chakra from all previous generations of Clan Head." Nagato took them back to the storage warehouse, "The Chakra in each crystal ball has different properties, and you have to adapt one by one."
"Which one to start with?" Naruto asked.
Nagato walked to the smallest crystal ball. "Start with this one. This is the one left by my grandfather. Chakra is relatively gentle."
He carefully removed the crystal ball and handed it to Naruto.
"Put your hand on it and slowly feel the Chakra inside." Nagato guided, "Don't be anxious, let it flow into your body naturally."
Naruto did as he said. As soon as he touched the crystal ball, a strange Chakra surged into his body.
"What a strange feeling." Naruto frowned, "This Chakra is very calm, but with a sense of vicissitudes of life."
"Those are the traces of time." Nagato explained, "Everyone's Chuck will leave the imprint of life."
The fusion process went smoother than expected. Naruto's body gradually adapted to the new Chakra, and Nine-Tails did not produce any rejection reaction.
"Successful!" Mina said excitedly.
"This is just the first step." Nagato shook his head, "There are still more than twenty crystal balls waiting for you."
In the next few days, Naruto will have to fuse a crystal ball every day. Each fusion is a test, because the Chakra characteristics of each Clan Head are different.
Some are gentle, some are violent, some are full of wisdom, and some have fighting and murderous intentions. Naruto must adapt to them one by one and let them coexist harmoniously in the body.
"This is so irritable!" Naruto was holding a red crystal ball, sweating profusely, "I feel like my meridians are going to burst!"
"That's what Clan Head left behind during the war." Nagato said, "He spent his whole life fighting, so Chakra naturally has murderous intent. You have to use gentle methods to resolve its hostility."
"How to resolve it?"
"Imagine something beautiful," Nagato suggested, "Like happy times with friends."
Naruto closed his eyes, and the image of performing a mission with Sasuke and Sakura appeared in his mind. Gradually, the irritable Chakra began to calm down.
"It's working!" Karin monitored his condition, "Chakra's fluctuations are weakening."
After half an hour of hard work, Naruto finally successfully integrated this Chakra. But he was also so tired that he collapsed.
"Take a rest." Sasuke supported him, "Don't force yourself."
"It's okay." Naruto wiped his sweat, "How many are left?"
"Twelve." Nagato replied.
At this moment, Karin suddenly changed his expression. "Someone is coming! And there are a lot of them!"
Everyone immediately became alert. Sasuke turned on Rinnegan and looked into the distance.
"They are ninjas from all over the world." He frowned, "They don't seem to be looking for trouble."
Soon, a team of ninjas from many countries appeared in front of their camp. The leader was Leaf and Shikamaru, followed by representatives from various countries.
"Shikamaru?" Naruto stood up in surprise, "Why are you here?"
"Come to check the progress of the reconstruction." Shikamaru looked around, "Governments of various countries are very concerned about this project and sent us to inspect it on the spot."
"Inspection?" Mina was a little nervous, "We are still in the preparation stage..."
"It's okay." Darui said lazily, "We are just here to see the situation and will not interfere with your work."
But Sasuke read something else from the eyes of these people. They were not just here to inspect, but more like they were here to monitor.
It seems that the plan to rebuild Land of Whirlpools has attracted the attention of all parties. The road ahead may not be so smooth.
"Thank you for coming all the way." Nagato walked forward with a cane, "I am the person in charge here, Nagato Uzumaki."
Shikamaru looked at the old man, a trace of surprise flashed in his eyes. He could feel the unfathomable Chakra Wave movement on the other person's body.
"Senior Nagato, I have long admired your name." Shikamaru nodded politely, "We are here mainly to learn about the specific progress of the reconstruction work."
"Of course." Nagato smiled, "But before that, can you tell me who you are here to represent?"
This question made the atmosphere tense instantly. Representatives from various countries looked at each other, obviously not expecting the old man to be so direct.
"We represent the five countries United Committee." Qing started, "This committee was established specifically to supervise the reconstruction project."