Shinsei's plan is simple: since he can't change the body, he'll change the Ten-Tails ' mind.
Compared to its immense Chakra, its will is definitely not that strong. Even Obito Uchiha could hold out for a long time, which shows that the Ten-Tails ' will is not as powerful as imagined.
Having experience in nurturing Xiaobai, Shinsei finally started to make some progress.
However, when facing the Ten-Tails, no amount of caution is excessive, so he sought out Sasuke.
Sasuke quickly approached Shinsei, slightly raising his chin as if to say, "What do you want?"
Shinsei put his arm around Sasuke's shoulder and said to him, "Use your Sharingan to modify this guy."
Sasuke rolled his eyes at the enormous creature. His Sharingan skills were designed to target humans, and this behemoth was a composite of nine Tailed Beast —it was simply impossible.
"It's alright, I have a plan. With your help, there shouldn't be any problems. However, your eyesight might not be up to par right now; would you like to upgrade it?"
Shinsei had always wanted Sasuke Uchiha to upgrade his eyes to the Eternal Mangekyō Sharingan, but in this life, Sasuke still hated Uchiha Itachi and his eyes, and refused to replace them with Uchiha Itachi's Sharingan.
"Please do me a favor, use this for now, and you can change it later! My Mangekyō cloning project is ongoing, and you know the progress. I'll definitely give you a pair of truly unique, Eternal Mangekyō Sharingan when they're ready."
Sasuke Uchiha took out a glass bottle from his storage scroll. Inside the bottle, a pair of Mangekyō Sharingan were soaking in a special potion—the eyes of Uchiha Itachi.
Seeing Sasuke's hesitation, Shinsei added a provocation, "What a great opportunity to save the world! If it were Naruto, he wouldn't hesitate like this. Maybe I should ask Naruto for help."
Sasuke coldly looked at Shinsei: "No need to look for Naruto."
Sasuke took Uchiha Itachi's eyes from the glass bottle. He extended two fingers and gouged out his own eyes, then Hand Seals.
An invisible Chakra drew a pair of eyes into his eye sockets.
Seeing Sasuke's face contort in pain, Shinsei took out a tissue to wipe the blood flowing from his eyes, and then used Mystical Palm Technique to heal the damaged cells in his eyes.
The eye-changing technique is truly plug-and-play.
When Sasuke opened his eyes again, his Sasuke Mangekyō Sharingan now displayed intricate geometric patterns, appearing mysterious, noble, and bloody.
"How are you feeling?" Shinsei asked curiously.
Sasuke didn't speak, but looked at the enormous Demonic Statue of the Outer Path in front of him and jumped onto its head in a few steps.
Tsunade, seeing Shinsei about to follow, said, "Be careful. Don't be reckless if you can't handle it. We can always find another world."
Shinsei smiled at the teacher, "Don't worry, teacher, I'm confident."
Shinsei then jumped onto the top of the Demonic Statue of the Outer Path. He placed one hand on Sasuke's shoulder and the other on the top of the Demonic Statue of the Outer Path's head.
Are you ready?
Sasuke nodded. "That's fine."
Immediately, Shinsei activated his Chakra, and the two instantly shifted space, arriving in a desolate land.
This is the mental space of the Demonic Statue of the Outer Path, or more precisely, the mental space of the Ten-Tails.
In the vast open space ahead, a gigantic monster composed of nine Tailed Beast lay sprawled on the ground.
Seeing two people appear in front of it, it struggled forward, trying to tear them to pieces, but it was firmly bound by countless sealing chains that restricted its body, preventing it from moving at all.
The Ten-Tails' consciousness is not yet fully formed. Once it is, the monster before us will take on the form of the Ten-Tails.
Sasuke turned to Shinsei and asked, "What do I need to do?"
Shinsei stretched out his hand, revealing a ball of golden Chakra.
"This is Little Nine's Chakra, containing its memories. Take a look, then implant these memories into the Ten-Tails ' consciousness. Be careful, the Ten-Tails ' willpower is extremely violent; be careful not to suffer a backlash."
Sasuke accepted the golden Chakra and closed his eyes. Inside were countless moments between Xiao Jiu and Shinsei since Little Nine's birth.
The Kamimusubi can change the mindset of a target, but these changes are also successfully shaped through memory.
For example, when Sasuke first obtained the Sharingan's power, he wanted to transform Shinsei into his older brother, Uchiha Itachi. He relied on the image of Uchiha Itachi in his memories. With these memories as a starting point, he was able to fill in some gaps in his memories with Chakra.
Sasuke finally finished absorbing these memories, and he looked at the enormous monster before him. The skill from his Eternal Mangekyō Sharingan quietly activated: Kamimusubi!
The enormous, aggregate-like monster suddenly paused.
But then an invisible spiritual force began to invade Shinsei and Sasuke's minds.
This is the Ten-Tails ' spiritual space. Everything here is composed of the Ten-Tails ' spiritual power. Even the Ten-Tails that is still in front of you is just an image displayed based on its own memories.
As long as they were in this spiritual space, the two of them had already been enveloped by the Ten-Tails ' spiritual power.
The emphasis on using Sharingan skills subtly creates a connection between the two people.
Sasuke's body trembled visibly. A massive, chaotic consciousness assaulted his will, threatening to crush him into pieces.
Shinsei placed his hand on Sasuke's shoulder, and a gentle spiritual energy enveloped them Sasuke.
In terms of sheer mental power, Shinsei is naturally no match for the Ten-Tails, which is formed from nine Tailed Beast. However, in terms of the quality of mental power, this monster is still inferior to Shinsei, who has cultivated for a long time.
The Ten-Tails ' mental energy is frenzied, immense, and filled with violent consciousness, as if it were a collection of all of humanity's negative emotions.
Shinsei's will is like a massive ship on a raging sea; no matter how high the storm rages, the ship simply rises and falls with the waves and there is no risk of it capsizing.
Soon, within this frenzied will, Shinsei found the memories Sasuke had implanted. While altering these memories with his mental power, he called out the new name he had given the Ten-Tails: " Little Ten, Little Ten! Wake up, wake up!"
As Shinsei cried out, the memories Sasuke lost grew ever larger.
While resisting the Ten-Tails ' willpower, Shinsei allowed this memory to take over the Ten-Tails ' main consciousness. The Ten-Tails became increasingly frenzied, and countless violent thoughts invaded the mental power of the two of them.
" Little Ten, wait a moment, I'll come see you again tomorrow."
Seeing that the memories Shinsei had inputted were already solidified, he immediately pulled Sasuke out of the mental space.
Seeing the two streaks of blood flowing from Sasuke's nose, Shinsei handed Sasuke a tissue and said:
"Were you scared? But you did a great job, you've successfully completed the mission."
Sasuke smiled, though the brief negotiation had been extremely dangerous.
He thought that with the Eternal Mangekyō Sharingan and his enhanced mental strength, he could survive this clash of wills, but the Ten-Tails ' will was simply too immense.
If Shinsei hadn't protected him, he might have been overwhelmed by the Ten-Tails ' will and turned into an idiot.
Shinsei was also very satisfied; the first phase of the task was completed.
The next step is to make the inputted memories the dominant consciousness of the Ten-Tails, and to wash away the explosive emotions in the Ten-Tails' consciousness.