"Interesting."
Uchiha Katsu commented in a low voice, his hands quickly forming seals.
"Rasengan!"
Blue chakra spun rapidly in his palm, then suddenly merged with his perception of natural energy. After all, he was a reincarnated person, and his understanding of ninjutsu far surpassed that of this era.
He had seen the dazzling variety of ninjutsu from later generations. On top of that, Katsu himself was extremely talented, so he could practically learn any ninjutsu from just one look.
The Rasengan in his palm instantly expanded and changed color, transforming into an energy sphere nearly two meters in diameter, with pale golden energy flowing across its surface.
"Super Big Ball Rasengan!"
Uchiha Katsu hurled it forward.
Gamamaru's pupils shrank sharply. The moment he saw this ninjutsu, he thought of the one Ashura had once used.
Gamamaru shifted his enormous body to the side while forming seals with both hands. "Sage Art: Flowing Forest Wall!"
The ground instantly became muddy and soft. Countless stone vines, shaped like spikes, thrust out of the mud, attempting to intercept the sphere of energy.
But the power of the Super Big Ball Rasengan far exceeded his expectations. The spinning chakra tore straight through the vines and, carrying an aura capable of destroying heaven and earth, slammed into Gamamaru's shoulder.
BOOM!!
Gamamaru was blasted back dozens of meters, his huge body knocking down a stretch of ancient trees. The skin on his shoulder was burned and torn open, and blood mixed with natural energy seeped out.
All the main Toad forces around them changed expression.
The Great Toad Sage had actually been defeated head-on.
Uchiha Katsu, however, burst out laughing.
"Hahahahaha!!! I didn't expect Mount Myoboku to be this weak!"
"You're nothing special either!?"
His laughter echoed through the smoke and flames, carrying a sense of exhilaration he had never felt before.
In his previous life, he had to be extremely careful even when looking up at Mount Myoboku.
Now, he could stand here, die again and again, reincarnate again and again, and turn this once "heavenly court" upside down.
Gamamaru slowly stood up. For the first time, true gravity appeared in his cloudy eyes.
Gamamaru took a deep breath and used his final ultimate move with all his strength.
"Sage Art: Frog Cry of the Three Realms!", Gamamaru shouted.
An ear-piercing sound wave erupted from his mouth. It was no longer a simple vibration, but a dual impact that directly affected both the soul and chakra.
Wherever the sound wave passed, visible cracks appeared in the air. Even the surrounding toads instinctively covered their ears.
Uchiha Katsu was struck head-on. His eardrums, internal organs, and even his mind were all on the verge of collapse under this attack.
His body shattered again.
But Izanagi took effect once more.
He stood there completely unharmed, his Mangekyo slowly turning. His voice was calm, yet carried a hint of madness.
"Again."
"I have plenty of lives."
Gamamaru's gaze turned completely cold.
"Then let me see... just how many times you can come back to life."
The next second, the sound waves grew even stronger.
Many toads also hurriedly retreated.
The battle between the two grew increasingly fierce.
The sound waves continued to grow stronger, and many toads hurriedly evacuated.
But Uchiha Katsu was like a madman, charging into the core of the sound waves again and again, being shattered again and again, and reincarnating again and again.
With every resurrection, Uchiha Katsu fought more fiercely.
———
In the end, Gamamaru still failed to defeat Uchiha Katsu.
The smoke and dust had yet to settle over the battlefield. The towering ancient trees had been burned black and broken, while the ground was covered in pits of varying depths.
"Sigh..."
Gamamaru's enormous body was half-kneeling on the ground. All the natural energy around him had been exhausted, and his cloudy eyes were filled with heaviness and helplessness.
Uchiha Katsu walked toward him step by step. A sharp chakra short blade formed in his hand, and he coldly held it against Gamamaru's neck.
"Go. Take me to your library. I want to learn the power of Mount Myoboku!"
Gamamaru's expression was strained. He remained silent for a moment.
The elite toads around them looked extremely grim. Some had already lowered their bodies and were preparing to charge, but Gamamaru slightly raised one hand and stopped them in a deep voice. "Don't come over."
Mount Myoboku had deep foundations, but in the past few hundred years, they had hardly ever fought any real wars.
Faced with someone like Uchiha Katsu, whose strange ability was almost equivalent to infinite resurrection, their resistance was clearly insufficient.
Seeing how sensible Gamamaru was being, the corners of Uchiha Katsu's mouth lifted slightly.
In his previous life, he would never have dared treat Gamamaru like this.
In his previous life, Gamamaru had been Lord Arisu's direct disciple, known as the Doctor of Mount Myoboku. Almost all of the inventions of ninja-world technology had been monopolized by him to a great extent.
How could he be like this now, with his aged skin, looking exactly like a useless glutton?
After remaining silent for a moment, Gamamaru finally spoke. "Human, fine. I agree to let you learn senjutsu, but after you finish learning it, you must immediately leave Mount Myoboku."
Uchiha Katsu nodded.
He also knew that he did not truly possess the ability to wipe out the entire clan of Mount Myoboku.
If these toads decided to fight to the death and desperately dragged things out until both sides were destroyed, they could still completely wear him down.
The two sides thus reached an understanding.
———
[Somewhere In A Different Space]
Aino was sitting in front of a huge monitoring station, her gaze sweeping across the constantly changing scenes of the ninja world on the large screen.
Suddenly, her movements stopped.
On the screen, Uchiha Katsu's chakra mark... had disappeared.
Aino's brows furrowed tightly. Her fingers moved rapidly across the control panel as she tried to locate him again.
But she found nothing.
She stared at the blank section of the screen, quickly thinking, 'Where did this Uchiha Katsu... go?'
Should she report this to Lord Arisu?
"Nani (what)? Why did he disappear? Could it be that Katsu is no longer in the ninja world?"
Aino was somewhat flustered. After all, this was the first time something like this had happened.
Different space.
Aino did not hesitate in the slightest. She immediately reported the abnormal situation of Uchiha Katsu's chakra mark completely disappearing through the contingency channel Arisu had left behind.
———
At the same time, deep in the vast reaches of outer space, Arisu was floating at the edge of an asteroid.
"The place where I live seems to be a huge cosmic void.....", Arisu muttered to himself.
Suddenly, the senjutsu mark on his body trembled slightly.
The instant he received the message, Arisu's brows furrowed slightly.
Uchiha Katsu... had disappeared?
Arisu raised a hand and rubbed his brow, muttering in a low voice, "Something happened again..."
In his previous life, Uchiha Katsu had already caused him countless troubles.
Could it be that this time, it was going to happen all over again?
Arisu immediately stopped exploring and lightly swiped his finger through the void.
A pitch-black portal silently opened.
He took one step inside, and in the next moment, he had already disappeared from the starry sky.
———
[Mount Myoboku]
Gamamaru silently walked ahead, his enormous body casting a heavy shadow through the primeval forest.
Uchiha Katsu followed behind him with relaxed steps, his Sharingan turning slightly as a smile curled up at the corners of his mouth.
Soon, they arrived at an ancient stone hall covered layer upon layer by vines and enormous rocks.
This was Mount Myoboku's library and the place where senjutsu was practiced.
Gamamaru spoke in a deep voice. "Senjutsu training is extremely dangerous. Once natural energy gets out of control, at best, you will turn to stone. At worst, you will completely become a stone. If you insist on learning..."