A group of Naruto clones worked until late into the night, finally covering the Box of Ultimate Bliss with three layers of cotton quilts. The soundproofing effect was indeed good, and the sound range was compressed to 200 meters.
Seeing that there was a solution, Jiraiya had already gone to sleep. Naruto ate a simple late-night snack, was abused by the Nine-Tails in two games of shogi, and then also went to sleep.
The next day, the master and disciple sat across from each other at the dining table, their eyes wide. Naruto had dark circles under his eyes; his sleep quality last night was too poor, so it was better not to sleep. He dreamed of pi. Looking at Jiraiya, he seemed to be in a similar state.
In poor spirits, the food tasted like sawdust. After eating a few bites, Naruto turned on his Sage Mode. "Old man, I'm going to cultivate."
"Go ahead." Jiraiya waved his hand, then moved the table in front of the Box of Ultimate Bliss. Feeling the faint fear emanating from behind the three red quilts, he chewed on his bread and pondered, Why can't I seal it?
Naruto knew what would eventually emerge from the box, but he couldn't say. As for Jiraiya, his perception of the box was still that of a dangerous item capable of destroying the world.
The box belonged to Naruto, and he didn't want to force Naruto to sink it into the sea. Sealing it was the only way; otherwise, leaving it exposed like this was too dangerous and would attract greedy eyes.
Jiraiya was calculating the sealing logic on his side, while the Box of Ultimate Bliss provided the voiceover for him: "7546..."
His thoughts were repeatedly interrupted. Jiraiya listened to the incessant mechanical electronic sound in his ear and wondered, "Can this thing really destroy the world?"
When a legend enters reality, people are first shocked, then get used to it. But when a legend appears in such a low-tech way, people's three views (worldview, values, outlook on life) will collapse.
In the afternoon, when Naruto returned, Jiraiya was leaning against a distant tree trunk, leisurely checking his manuscript.
"Old man, dinner's ready."
"Coming." Jiraiya put away his manuscript and stepped out of the shade. Rather than worrying about the box destroying the world, he worried about what this thing in front of him might do.
In the afternoon, Naruto dragged the Mo Xie Precious Brick and the Box of Ultimate Bliss with extended chains. He put on noise-canceling earmuffs to reduce the volume, listened to the numbers, and, coordinating with the Box of Ultimate Bliss, sang the song of pi.
With the Box of Ultimate Bliss as a speaker, plus his altered voice, he could sing various versions of the pi song until he died.
The eerie singing, coupled with the volume of the Box of Ultimate Bliss's speaker, made everyone within two hundred meters of Naruto scatter. Jiraiya and a pile of pets ran far away. Even the Nine-Tails blocked its synchronized perception ability.
For a moment, Naruto felt like he was back to living alone, but he didn't care, because he could still have a lot of fun by himself.
Every now and then, he would open a teleportation gate behind him. The teleportation gate needed three seconds to gather, and when it formed, it would appear perfectly inside the box. Then, a clone would teleport into the box. After that, the box would be pulled forward, and the teleportation gate would emerge from behind the box again.
As long as it wasn't the Nine-Tails' sealing space or Obito's mental space, no matter whether it was material or a different dimension, nothing could stop this purple gate. Otherwise, if he hadn't lived long enough, Naruto would have even wanted to try teleporting back from the afterlife.
Inside the box, a clone would first step out of the teleportation gate, then take out stones, infuse them with magic power to turn them into stone walls, and then take out more stones.
In a few seconds, he would be consumed by the fear within the box, leading to death. It didn't matter if the project wasn't finished, because on Mount Myōboku, dozens of clones were lining up, waiting to go to the Pure Land. As the box's name suggested, each clone who entered would die.
The space inside the Box of Ultimate Bliss was very similar to a sealing space; it couldn't be teleported to, and items could be taken out. Their size was also similar. The difference was that it had a part that overlapped with real space. Its length, width, and height matched the box. Using this space as a springboard, one could enter other dimensions.
Moreover, Naruto found that when pulling the box, only the overlapping part would vibrate. Other spaces were unaffected, and there wasn't even pi. So, he started playing a game of building a home.
What a great place! It would be a pity not to build a home. Even if it were a prison, it couldn't be empty, that would be too shabby. Akatsuki wouldn't stand for it.
And such a private space that others couldn't enter, and only he could, was the dream of many men.
Another point was that Naruto was finding a retreat for himself. During the Fourth Great Ninja War, the only ones in the entire ninja world who didn't fall under the Infinite Tsukuyomi were Team 7, protected by Sasuke, and Samui and Atsui, who were sealed by Six Paths tools. The Box of Ultimate Bliss, being of the same level, should also have this ability and could serve as a backup against the Infinite Tsukuyomi.
Whether it could be used or not, it was better to be prepared.
But first, he had to withstand that boundless fear. Naruto felt he could do this. His clones had progressed from instantly collapsing the first time they entered the box to now being able to hold on for a few seconds. That was a huge improvement.
All it needed was time to adapt.
Although the fear transmitted back by the clones would still make him panic and even tremble, the singing, the Nine-Tails, and Jiraiya in front of him all gave him a great sense of security.
The main reason was that the Nine-Tails' teaching method, which involved strong, cold taunts forcing him into the Pure Land, truly made Naruto feel a mix of love and hate.
In the evening, Naruto sat in Jiraiya's room, studying sealing jutsu. Inside his own room sat several clones researching the Heavenly Prison Fire Sword.
Naruto didn't like learning other ninjutsu. After all, besides the special ones, most ninjutsu could be incorporated into the Rasengan, so learning them was a waste of time. Moreover, their attack power wasn't as high as the Rasengan's. For example, Katon: Ghost Lantern; he might as well just throw a Gōen Rasengan.
But Tenrō Kaken was different. It... was too cool. So cool that even his clones eagerly learned it without Naruto having to urge them.
"Old man, why did you add these two that can seal larger items?"
"Doesn't it have a note?" Jiraiya sighed. You always asking makes me lose inspiration.
"I know all the words, but when put together..."
"Ai, forget it, come here." Jiraiya continued to sigh. Why did I agree to teach you sealing jutsu in the first place?
He personally drew the jutsu formula. Jiraiya slowly said, "Look closely. Their relationship isn't parallel; it's more like cause and effect..."
"Oh." Naruto listened carefully, taking notes while lying on the fox spirit's belly.
Ten days later, in the evening.
The master and disciple were eating dinner. As they ate, Naruto suddenly had a strange feeling. He could sense which dish Jiraiya would pick up next with his chopsticks!
Is this the fear perception of Wu?
Could it be that my Death Adaptation Method really works?
Naruto was very surprised and confused.
Fear and terror are difficult to define. Like One Thousand Years of Death and being instantly killed by a sword slash, both release malice, but ultimately it's the same emotion. As long as that emotion exists, it will be perceived.
This was also the reason for Naruto's confusion. Old man, what are you afraid of me?
Then, Naruto shamelessly snatched the dish Jiraiya was about to pick up.
At the same time, he observed Jiraiya's expression.
This behavior was very bad, and Naruto usually wouldn't do it, but today it was just for experimenting with his abilities.
Indeed, Jiraiya's chopsticks paused slightly, but he didn't think much of it and simply picked another dish.
It wasn't until five minutes later, when his dish was snatched again, that Jiraiya raised an eyebrow, his eyes widening and narrowing, his lips twitching, and he asked, "Are you doing this on purpose?"
"No," Naruto said calmly while eating. This ability was really fun.
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