In the original storyline during the Fourth Great Ninja War, Kakashi fought Obito in the Kamui space. On the surface, it looked like he used Raikiri to shatter Obito's heart, winning the battle.
However, internally, Obito achieved his goal by using Kakashi's hand to remove the curse seal that was etched onto his heart by Madara.
Without a heart, Obito was like a wild horse that had broken free. After leaving the Kamui space, he immediately became the Ten-Tails Jinchuriki.
Even without a heart, he could survive thanks to the power of the Sage of Six Paths.
Unfortunately, in the end, he was still outsmarted by Black Zetsu and did not become the ultimate winner.
In this situation, without the Ten-Tails, Obito didn't dare to let Kakashi shatter his heart.
For this battle, in his anger, he decided to go all out.
First, he wanted to prove that he was no longer the bottom of the barrel he used to be.
Second, he needed to vent years of pent-up frustration.
"Wood Release: Great Forest Technique."
Sharp wooden spikes sprouted from Obito's arm, quickly lunging towards Kakashi.
With the enhancement of his Mangekyō Sharingan, Kakashi reacted quickly, immediately retracting his offensive stance. He slightly bent his body and dodged to the left to evade Obito's Wood Release.
"Obito, it seems you really want to kill me."
Using Wood Release was enough to show that Obito was serious about eliminating Kakashi.
"I told you, today either you die or I live. Get ready, Kakashi."
This time, Obito didn't use any ninjutsu; instead, he pulled out a kunai and charged at Kakashi with a crazed expression.
Seeing Obito charge, Kakashi also didn't dare let his guard down. He drew his own kunai and began to fight back.
Clang, clang!
Both of them were very familiar with each other's fighting styles.
The sounds of their clashes echoed, making it look quite lively, but it had no real effect.
There was no choice; they were just too familiar with each other. With the enhancement of the Sharingan, relying solely on taijutsu, neither could gain an advantage over the other.
Of course, as everyone knows, Kakashi has a nickname: Kakashi the Fake.
From the name alone, it was clear that Kakashi didn't have lasting power; the more fiercely he sprinted at the start, the quicker he would weaken.
On the other hand, Obito had the cells of Hashirama, which gave him much greater endurance than Kakashi.
Not only was he strong, but his recovery speed was also incredible. As long as he attacked in a certain rhythm, he could keep up with Kakashi for an entire day.
If Kakashi were to be toyed with by Obito all day, he would likely be finished.
Kakashi knew this; fighting Obito couldn't last long.
Fortunately, he only needed to hold Obito off for a while until the Second Hokage completely revived Rin.
Thinking of Rin made Kakashi momentarily distracted, which allowed Obito to kick him away.
This powerful kick immediately made Kakashi spit out blood.
Truth be told, it was his first time fighting Obito in a life-and-death battle.
As the saying goes, the first time always hurts.
Kakashi certainly felt the pain as he held his stomach and shakily got back on his feet.
"You can't do it, Kakashi. I haven't even put in any effort, and you're already down," Obito mocked.
Obito's taunts didn't stir any emotions in Kakashi.
"Obito, have you forgotten something?"
"What?"
Obito looked at Kakashi with disdain, clearly uninterested in what he had to say.
"I also have Kamui~"
After saying this, Kakashi quickly formed hand signs and opened his mouth, unleashing a massive fireball at Obito.
"Fire Style: Great Fireball Technique!"
As the fireball erupted, Kakashi also threw several shurikens and kunai at Obito.
At the same time, he fully activated his Mangekyō Sharingan, starting to use Kamui to distort space and attempt to leave the area.
"Oh no."
When Obito heard Kakashi's words, he realized that this bastard was trying to escape.
Obito, who was not done yet, certainly didn't want Kakashi to succeed.
However, he lost the initiative, as Kakashi's Great Fireball Technique, combined with thrown kunai and shuriken, delayed him for a moment.
On top of that, the kick he aimed at Kakashi was too powerful, sending him flying a considerable distance.
"Goodbye!"
After Obito used the Earth Flow Wall to block the fireball and the kunai and shuriken, it was too late for him to rush towards Kakashi to stop him from leaving.
Amidst Kakashi's slightly mocking gaze, Obito let out an angry roar. Regardless of the consequences, he unleashed a spatial distortion and entered the Kamui space, reversing time slightly.
After Kakashi and Obito went to the Kamui space to battle, Tobirama quickly summoned Rin's clone.
"You guys keep an eye on the surroundings; make sure no one interrupts me."
"Understood, Sensei. We'll handle the watch."
Tobirama nodded to the Third Hokage and brought Rin's clone in front of the reanimated version of Rin.
"Lord Second Hokage, what are you doing?"
The way the Third Hokage and others addressed him made Rin realize that the white-haired man in front of her was the Second Hokage of the village.
No wonder she felt he looked so familiar; it took her a moment to remember who he was.
After all, the statue on Hokage Rock looks different from the real person.
"I'm going to extract your soul and place it into this body, allowing you to truly come back to life."
"Come back to life?"
Rin's mouth fell open in disbelief.
Tobirama confirmed that this girl was indeed a bit airheaded.
"Just remember not to resist; relax your whole body."
"Okay, Second Hokage-sama."
As a ninja from Konoha, Nohara Rin trusts the Hokage of her village completely. Even though she has never met the Second Hokage, she believes he wouldn't harm her.
"Relax!"
Nohara Rin closed her eyes and let Senju Tobirama do his work.
Tobirama quickly made hand signs with both hands. In just five seconds, he formed at least thirty different signs.
He didn't want to do so many signs, but the technique was quite complex; without forming all these signs, he couldn't use it.
"Ninjutsu: Soul Extraction Technique!"
After a series of flashy and dazzling hand signs, Tobirama gently placed his hands on Nohara Rin's shoulders.
Soon, a soft light began to emanate from her body.
The light appeared quickly and disappeared just as fast.
As the glowing curtain faded, Tobirama's hands began to rise gradually.
If observed closely, one could see a transparent figure being pulled out of Nohara Rin's body by Tobirama.
This transparent figure was Nohara Rin's soul.
Tobirama's movements were slow and careful.
It took him a full minute just to extract the soul.
It's no wonder he made the Third Hokage and others stay alert; with such a long casting time, if he were interrupted, all his efforts would be wasted.
The consequences could also be unpredictable.
*********
Support me on my ko-fi account and read upto 15 early chapters,
https://ko-fi.com/aayume