Somewhere in the ninja world.
On a desolate island.
Madara Uchiha stood before the Demonic Statue of the Outer Path, several tubes extending from the Demonic Statue and connecting to his back.
He wore simple cloth robes, his long sleeves hanging down as he folded his arms calmly in front of him.
Not far away, Obito Uchiha stood in a clearing, enveloped in a swirling blue chakra. Surrounding him was a massive blue skeletal chakra frame.
"Ha... Aaaah!!"
Obito clenched his fists. The Mangekyo Sharingan in both his eyes erupted with a fierce surge of ocular power. His blue chakra skeleton expanded rapidly, muscles of a pale blue visibly forming over the frame. Then it grew even larger.
A colossal blue armor encased his body.
"Continue."
Madara watched quietly from a short distance, his voice calm. "The power you possess is far beyond this... Though your eyes are only ordinary Mangekyo Sharingan, your body, composed almost entirely of Hashirama cells, makes you a demi-sage. The fusion of Uchiha and Senju powers means your ocular ability is eternal."
"I know..." Obito replied slowly, drawing a deep breath. He kept digging deep within, extracting chakra continuously from the core of his being.
Combining Uchiha and Senju power, with Mangekyo Sharingan active in both eyes, the chakra he unleashed finally reached a critical breakthrough.
BOOM!
A massive surge of blue chakra shot straight into the sky.
An enormous chakra giant coalesced, towering between heaven and earth. With Obito's roar, the chakra around the giant solidified sturdily.
It wasn't the first stage Susanoo.
Nor the second, nor the third.
This was... the complete form of Susanoo!
With both Mangekyo Sharingan fully activated, one can summon Susanoo, but combined with a demi-sage body, Obito's ocular power was nearly eternal!
"Now it's looking like something."
Madara tilted his head, a faint smile finally crossing his lips.
The silver-flashing Konoha shinobi, Hatake Kaede, held immense power in this era. Madara worried Obito might not be strong enough to face him, so instead of dying and waiting to be revived, he brought Obito to this island at sea to train him.
After Obito's complete descent into darkness, his talent was immense. He quickly absorbed countless ninjutsu and battle experience, except for mastering Susanoo, which was still a bit shaky.
But now...
It was finally done.
Just as Madara expected, even without the Eternal Mangekyo Sharingan, Obito's demi-sage body granted him eternal ocular power, able to wield the strongest Mangekyo ability, the complete Susanoo!
This was the power Madara used to dominate the ninja world, overwhelming countless shinobi, standing above the great ninja villages, the power he and Hashirama once fought against.
At this moment, Obito...
Had basically reached the strength he had in his youth.
"So this is the complete Susanoo? Indeed, an incredibly powerful force."
Obito stood tall within the full Susanoo, clenching his fists. He could feel himself far stronger than before.
Madara studied him for a few seconds before saying, "Come here. I have something to tell you."
Silently, Obito dispelled the Susanoo and stepped before Madara.
"With my power, you can go find that brat Nagato. From now on, it's your responsibility to guide his growth, until he can wield the 'Rinne Rebirth Technique.'"
Madara's voice was slow but deliberate. "Also, I don't recommend you recklessly start trouble with Hatake Kaede. He might possess power comparable to what Hashirama and I had back then, and won't be easy to deal with."
Obito's voice was deep and steady: "I am no longer the person I once was."
Kaede or not, those things no longer mattered. His true goal now was to remake the world, Kaede was just a stumbling block that needed to be cleared away.
"Hm..." Madara nodded.
The Obito of before had been reckless and impulsive, but now he was calm, composed, and nearly matched the power Madara held in his youth. Madara could finally feel assured.
"Then, until I'm revived... you are Madara Uchiha."
Madara said slowly, then stepped forward and severed the tubes connecting him to the Demonic Statue of the Outer Path. His body trembled slightly, then he took two steps back and sat down.
His breath faded until he was still.
Obito quietly watched this scene.
After a moment, he turned to the two beings nearby, Black Zetsu and White Zetsu, and said, "Let's go."
...
The chakra fluctuations from the complete Susanoo were intense.
Though it was at sea, the large-scale sensory barrier from Kirigakure detected it. The giant water sphere rippled, drawing Kirigakure ninja to investigate.
But after checking, they found nothing.
Only signs of damage scattered across the island.
Eventually, the matter was dropped.
...
Elsewhere,
Kaede and Rin arrived at Mount Myoboku.
The mountain lay within a labyrinth of twisting peaks, ordinary people would quickly get lost and eventually find their way out by accident. Even many shinobi struggled to truly penetrate the maze and reach Mount Myoboku's inner sanctuary.
The cause was the natural energy interference that made navigation confusing.
But for Kaede, who had already mastered the Sage Mode of the Ryūchi Cave, this was no obstacle. He found the correct path easily and led Rin inside.
After passing through layer upon layer of the maze, the surroundings opened up into a valley that seemed like a hidden paradise. All the plants were enormous, and massive, bizarre insects flew through the sky.
At the entrance to the valley stood a stone monument engraved with the words "Mount Myoboku."
Perched atop the monument was a small toad cloaked in black, staring toward Kaede and Rin as if it had been waiting a long time.
This was one of the two great sages of Myoboku:
The Great Toad Sage
"Guests have finally arrived... Following the orders of the Great Toad Sage, I have been waiting for you here, Hatake Kaede. Please follow me."
The Great Toad Sage gave a slight nod as Kaede approached.
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