Minato Namikaze said excitedly, "Naruto, this thing gives me a feeling that it can't just be called Rasengan anymore. It should be called Spiral Super Wheel Black Crack Rotation."
"This is called Great Spiralling Ring."
A faint voice cut in, interrupting his father's desire to name the black sphere.
He remembered seeing this form of Rasengan in the movie Road to Ninja. In the movie, Menma of the Uzumaki Clan had lost a Great Spiralling Ring in Konohagakure.
Its power was comparable to Nagato Uzumaki's Universal Pull, leveling Konohagakure in the blink of an eye.
"Uh, alright."
Minato Namikaze was a little disappointed, but he felt his son's chosen name was very fitting.
Kurama suddenly lowered his head towards Naruto and said, "Naruto, how much of your chakra did it take to create this thing? Its essence is already very close to my Tailed Beast Bomb."
"It consumed about two-thirds of my chakra," Naruto replied after carefully sensing it with his eyes closed.
A clear flash of surprise crossed Kurama's crimson eyes, then the corner of his mouth split into a grin. "Heh, brat, when you grow up, your chakra reserves will be able to rival Hashirama Senju."
"It's even possible you'll surpass him. I know a lot about you Uzumaki Clan members. Not to mention, my first Jinchuriki, Mito Uzumaki, had chakra reserves no less than Hashirama Senju's."
Naruto nodded. He remembered how many people online in his past life used to joke in the comments of Naruto videos.
They said that for ninjas like Naruto and Hashirama Senju, their personal chakra reserves were measured in tons, so they should be called "Chakra-ton," while others were measured in grams, hence "chakra."
The most classic example was Kakashi.
During battles, he didn't dare to use Raikiri more than a few times before running out of chakra, resorting to Earth Style Ninjutsu to get by.
Then there was Gaara.
In an episode of the anime featuring Takumi Village, during Gaara's fight with Seimei, Gaara claimed his chakra was almost depleted. While suppressing Shukaku within him, he managed to unleash a powerful move, Desert Funeral, in the span of a single breath.
"So what do we do with this thing?" Naruto asked, holding up the Great Spiralling Ring.
Minato Namikaze paused, glanced at Kurama, then quickly averted his gaze.
"ROAR!" Kurama roared. As if sensing something, he cursed, "Bastard! Fourth Hokage! What are you thinking! I can sense your ill intentions!"
"Uh..." Minato Namikaze's face felt a little hot. He had forgotten that within the seal, Kurama could sense others' malice, and the chakra he was currently using was replenished by Kurama.
He had just been thinking that since Naruto had cultivated this thing under Kurama's guidance, it should be Kurama's responsibility to handle it.
Naruto's eyes flashed, and he said calmly, "Father, Kurama, you both said this seal is very strong, right?"
Kurama raised his foxy head. He had guessed Naruto's intention but remained silent.
Minato Namikaze also understood Naruto's meaning, but he frowned and said, "Naruto, the Rasengan cannot be let go of. And if a chakra sphere of this magnitude explodes on the iron gate, it would be too dangerous for your mental consciousness."
Kurama, however, spoke up, "Naruto, link your chakra with mine. You should be able to grab this thing with a chakra arm, right? Once the chakra arm grabs it, you can just send it outside the iron gate."
Minato Namikaze's heart stirred. "That's right! We can do it that way too, although it's different from the solution I was thinking of for Kurama."
Kurama's crimson vertical pupils immediately bulged, and he spoke with an unfriendly tone, "Oh? Fourth Hokage, what were you thinking just now?"
Naruto remained silent. This plan was indeed good. The moment he and Kurama reached an understanding and linked their chakra, his entire body had been enveloped in a layer of golden chakra.
Inside the seal, he had experimented according to Kurama's instructions. His chakra could be materialized into various chakra arms.
However, after numerous experiments with Kurama, this chakra could not be taken outside the iron gate.
As soon as Naruto stepped outside the iron gate, his chakra would be forcibly absorbed back by Kurama within the seal, and it would also take a portion of his own chakra, causing him to feel very weak.
Minato Namikaze had been puzzled by this situation for a long time. Logically, the seal he had placed should not have caused such a thing. The ultimate function of this seal was to convert Kurama's chakra into his son's chakra.
He still couldn't understand why his seal had resulted in this outcome.
"Thank you, Kurama!" Naruto first turned and smiled gratefully at Kurama, then walked to the iron gate and his tone immediately changed. "I know the Rasengan can't be let go of."
"But this one can!"
Minato Namikaze exclaimed in shock, "What!"
Naruto had already extended the hand holding the Great Spiralling Ring past the iron gate. Under Minato Namikaze's stunned gaze, he forcefully swung it, and the thing that had just been named Great Spiralling Ring flew up.
After letting go, Naruto immediately pulled his father to Kurama's claws.
"Please, Kurama!"
Kurama glanced over. The object resembling his Tailed Beast Bomb outside the iron gate was not far from the ground. His claws instantly closed, enveloping Naruto and his father, then he moved his body, and his nine tails coiled around, wrapping his entire body into a ball.
BOOM—
The Great Spiralling Ring exploded before it even hit the ground.
With a tremendous roar, the other side of the sealed iron gate was instantly filled with an incredibly terrifying spherical shockwave that rapidly expanded outwards. Blinding light simultaneously filled the entire sealed space.
Naruto and Minato Namikaze, enveloped within Kurama's body, even felt the sealed space itself begin to shake.
After a while, Kurama sensed that the shockwave from the explosion had completely passed. He retracted his tails, looked at the iron gate, a flicker of disappointment in his eyes, and then released his claws, letting Naruto and Minato Namikaze out.
"Huh? The seal actually has cracks?"
As soon as Minato Namikaze's vision returned, he appeared somewhat surprised and uncertain.
"Fourth Hokage, are you serious?" Kurama's ears perked up upon hearing this.
Naruto was already carefully examining the seal. He knew the Eight Trigrams Seal as well, and he quickly confirmed that his father's feeling was correct. The seal indeed had faint cracks.
When he first learned the Eight Trigrams Seal, he had asked his father if he could directly break the seal on him, but Minato Namikaze had said it was impossible.
To break the seal, one needed the key specifically designed for the sealing jutsu formula. This key was unique to whoever had set the seal. Even if Naruto knew the Eight Trigrams Seal, the key he made wouldn't match.
Later, Naruto casually asked how to break the Reaper Death Seal, but the Fourth Hokage refused to talk about it.
Naruto didn't press the issue. He knew the story; breaking the Reaper Death Seal wasn't actually difficult, but the person who broke the seal had to sacrifice their life as a price.
Orochimaru had demonstrated it himself, but Orochimaru exploited a loophole in the sacrifice using the Reanimation Jutsu, only sacrificing a body he didn't care about.
After confirming that the seal had indeed developed cracks, Naruto extended his fist towards Kurama. No words were needed; Kurama immediately clasped its paw with Naruto's fist, instantly understanding what Naruto intended.
After Naruto was immediately enveloped in a layer of golden, flame-like chakra, he retracted his fist and took two steps out of the iron gate.
Naruto, who had just walked outside the iron gate, frowned. The golden chakra on his body was still rapidly disappearing, just like before, flickering unstably as if flames on a bonfire were being ravaged by a strong wind.
Just as Naruto was preparing to accept that he would be weak again tonight, the chakra on his body stopped draining.
However, its color began to change.
After a few breaths, the color of the remaining chakra had completely turned a deep crimson. It soon re-enveloped Naruto's entire body, appearing semi-transparent. On his head, a pair of things resembling Kurama's fox ears had appeared.
"Huh? This chakra seems to be guiding my emotions."
Naruto turned around and asked the iron gate with confusion. Behind him, two things that looked like tails were swinging unconsciously.
"Yes! That's it! This is just like when Kushina used it back then. I knew my seal would be fine!" Minato Namikaze's focus was completely different from Naruto's.
After carefully observing Naruto's current form, a flash of surprise appeared in Kurama's eyes. Then, its voice deepened, "Fourth Hokage, aren't you celebrating a bit too early? Haven't you realized Naruto's body has already started to transform into a Tailed Beast?"
Upon hearing Kurama's voice, Minato Namikaze immediately reacted.
That's right, Naruto had obtained Kurama's chakra outside the seal gate. According to the seal's function, this was normal; it was possible to seize and borrow the Tailed Beast's chakra like this. However, when using the Tailed Beast's chakra, the user's body would inevitably display the Tailed Beast's chakra, forming a Tailed Beast Cloak. Kushina had shown this form in front of him before.
"Heh~ Back to your senses?" Kurama sneered and continued, "Too late! Two of the ninjas monitoring Naruto outside his room just ran off. They're definitely going to report to the Hokage."
The Fourth Hokage's face darkened. The Third Hokage would definitely come to inspect the seal later. Thinking of this, he immediately shouted at Naruto outside the iron gate, "Naruto, hurry and come in. Have Kurama retract its chakra first, and then I'll reinforce and restore the seal."
Upon hearing that the seal was to be reinforced, Kurama's eyes, which were already crimson, seemed to turn blood-red. After casting a deep glance at Naruto, it closed its eyes and lay down.
Naruto was still feeling the changes the chakra on his body was bringing him. Hearing his father's voice, he shook his head.
"Father, even if the Third Hokage is a ninjutsu doctor, at most he'll discover that the seal on me has cracked. He won't do anything to me, so don't worry. I can handle it when he gets here."
"Sigh~" Minato Namikaze sighed, "I'm just a little worried, but the Third isn't a bad person. You don't need to be too afraid."
Hearing this, Naruto's gaze turned cold, and he replied emotionlessly, "Father, even if I were a three-year-old child, you should know that bad people aren't the truly scary ones in this world."
"The truly scary ones are the fake good people."
"Besides, I said from the beginning that I wanted to break the seal. Why should we reinforce and restore it?"
Upon hearing this, Kurama's ears twitched slightly, but its eyes remained closed.
Minato Namikaze's expression became extremely grim upon hearing Naruto's words. He was still hesitant because he was worried that the Third Hokage would thoroughly inspect the seal. If his presence were discovered then...
Naruto sensed the fluctuating chakra of the remaining two Anbu monitoring him outside. The Third Hokage had also set off for his home with many people.
After thinking for a moment, Naruto spoke, "Kurama, can you prevent my father from being discovered?"
"Hmph!" Kurama didn't even lift an eyelid and simply extended a paw, saying, "Come here, Fourth Hokage. You bastard, if you ever mention reinforcing the seal again, don't expect any more chakra replenishment."
Minato Namikaze was immediately embarrassed. Looking at his son waving goodbye to him, he forced himself to walk into Kurama's paw.
With a shift of his consciousness, Naruto left the mental world. After taking control of his body, he found that, just like inside the seal, he was now completely enveloped in Tailed Beast chakra.
He took two steps after getting up, and the two tails behind him smashed a stool in the hallway to pieces.
The Third Hokage had arrived downstairs with a group of people.
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