The next day, Natsuki went directly to the Hokage Office to apply for the mission.
Tsunade was curious, "You just came back from vacation, and you're so eager to take on a mission. You're not planning to go look at the Senju Library again, are you? And you're bringing Sasuke with you. It seems he benefited greatly from looking at the library last time."
Oh? Is that the misunderstanding?
It seems correct, so let's admit it.
Natsuki nodded, "Sasuke said that the Senju and Uchiha were once rivals, and the Senju understood the Uchiha very well. The library also mentions many Uchiha abilities, techniques, weaknesses, etc., which is a great help to Sasuke."
Tsunade smiled, "That's good. Then you two work hard for me! With good helpers like you, I'm indeed much more relaxed!"
Natsuki was also not polite and said directly, "Then, Tsunade-sama, when Tenten and I get married someday, you can't be stingy. How about just using a permanent free reading pass for the Senju Library as a wedding gift?"
"Dream on!"
Tsunade laughed and scolded, "But it's a good idea. Permanent free is impossible, but a three or five-day reading experience pass is possible. Very good, when you and Tenten get married, I won't have to worry about the wedding gift. You've already thought of it for me."
Very good, the topic has been diverted. Tsunade won't suspect anything.
Natsuki didn't delay further. After receiving the mission, he was about to leave.
But before leaving, he still whispered, "Tsunade-sama, I noticed that guy Sai is secretly monitoring Sasuke."
Tsunade's expression immediately turned serious upon hearing this, "I know. I will handle it. You and Sasuke focus on your mission."
After Natsuki left, Tsunade's expression immediately became extremely grim, "That old geezer Danzo! The Uchiha only have one descendant left, and what else does he want?! Since he's so idle, let's give him some missions. Shizune, go call Kakashi. There are some troublesome missions that Kakashi can take that guy Sai to do!"
Kakashi: Why am I also getting hurt?
Here, Natsuki saw Sasuke outside the Hokage Building and also glanced at Sai hidden in the dark, but didn't pay attention.
"The mission application has been approved. Let's go..."
As Natsuki spoke, he slapped Sasuke's shoulder, and then they vanished in a flash. No matter how good Sai was at tracking, he couldn't follow the Flying Thunder God Technique.
In the blink of an eye, the two were outside the Village.
After comparing the location of the lake, the two immediately rushed there quietly, making sure not to be discovered by anyone else.
Two days later, the two arrived near the lake. They could see that the lake was covered in mist, and they couldn't even see the surface of the water. It seemed the Three-Tails was well hidden and living a very comfortable life.
Compared to its other eight trapped brothers, it was truly free and at ease!
"The Three-Tails is at the bottom of the lake!" Sasuke's voice was tinged with excitement.
"Yes, it's at the bottom of the lake."
Natsuki affirmed, but suddenly spoke of something else, "Sasuke, there are some things I need to warn you about. First, Orochimaru might not be dead. His soul is hidden in the cursed seals on you and Anko-senpai, so you must be careful. Second, Tailed Beasts are very dangerous. They have been sealed many times over many years and have accumulated a lot of dark emotions. They might affect you, so you must stay calm."
Sasuke was very surprised upon hearing this.
He didn't expect Natsuki to suddenly bring this up, and even say that Orochimaru wasn't dead.
He touched the cursed seal on his shoulder and didn't doubt Natsuki's words, because Orochimaru had always given people the impression of being immortal.
If he was really hiding in the cursed seal and surviving, he would indeed have to be careful.
If this poisonous snake found a loophole, it would be really troublesome.
As for the Tailed Beast's situation, Sasuke was already mentally prepared and knew that Natsuki was worried about him, so he was naturally grateful.
He nodded solemnly, "I understand! I will be careful!"
Natsuki said no more. He and Sasuke ran across the surface of the water to the center of the lake, then sank directly down, slowly observing and searching underwater. Soon they found a huge turtle with Three-Tails, covered in sharp spikes. It was the Three-Tails, Isobu!
Sasuke felt the massive Chakra and became excited.
Natsuki made a gesture, and Sasuke immediately swam to the surface, opening the Chakra battery mechanism on his arm. Sealing such a behemoth as the Three-Tails would definitely require a lot of Chakra.
He needed to be fully prepared.
And Natsuki, in the water, looked at the Three-Tails swimming freely and at ease, and could only inwardly apologize before clapping his hands together and using Water Release: Kraken.
The next second, a giant water octopus, no smaller than the Three-Tails, suddenly extended its tentacles and wrapped around the large turtle.
The Three-Tails immediately struggled and shrieked, but it was still dragged out of the water by the Kraken and was entangled by the tentacles, unable to move.
The Kraken could even entangle Susanoo, let alone just the Three-Tails!
Moreover, Natsuki also controlled the Kraken's tentacles to tightly wrap around the Three-Tails' large mouth, preventing it from having the chance to use Tailed Beast Ball and Water Release, completely turning it into a lamb waiting to be slaughtered.
Sasuke naturally wouldn't miss the opportunity. He quickly reached the Three-Tails and, completely unconcerned about what the Three-Tails might do, immediately began to use Sealing Jutsu.
He believed in Natsuki's strength and knew that Natsuki would completely control the Three-Tails.
He didn't need to worry about his own safety!
"... Sealing Jutsu: Four Symbols Seal!"
Sasuke quickly formed hand seals, then slapped the Three-Tails, and immediately chains extended from his body, completely enveloping the Three-Tails and forcefully drawing it into his body.
The Three-Tails naturally guessed that the hateful humans had come to seal it again and immediately struggled even more violently.
It was living a carefree life and hadn't even thought of seeking revenge on humans, so why wouldn't humans leave it alone?
Damn humans!
Sasuke felt the Three-Tails struggling more violently, so he decisively increased the output of Chakra. The power of the Four Symbols Seal also increased accordingly, forcefully pulling the Three-Tails into his body.
Due to Natsuki's cooperation, coupled with Sasuke's not-bad Sealing Jutsu and the sufficiently large Chakra used to activate the Sealing Jutsu (Li Zhao's), the Three-Tails didn't struggle for long before being forcefully pulled into Sasuke's body. A sealing rune also formed on Sasuke's abdomen. Sasuke immediately placed his hand on his abdomen and activated the Four Symbols Seal again.
A double Four Symbols Seal is the Eight Trigrams Sealing Style, which can perfectly seal the Tailed Beast.
Moreover, the two layers of seals will also suppress the Tailed Beast's power, turning the Tailed Beast into a large Chakra battery, thus eliminating the problem of low Chakra from then on.
"Phew! Success!"
Sasuke sensed the Three-Tails being powerfully sealed within his body, and he could also feel that he could mobilize the Three-Tails' Chakra.
So he simply mobilized this Chakra, and his body was immediately covered in a layer of Tailed Beast cloak. The immense power made him incredibly happy, and he couldn't wait to fight Itachi Uchiha immediately.
Of course, he also felt the Three-Tails' negative emotions, but fortunately, Natsuki had warned him, and he also suppressed these negative emotions in time.