The sky above Iwagakure was heavy with ash and fear.
Si Feng stood in silence as the Five-Tails—Kokuō, the lava-horned beast—charged toward him. Its Jinchūriki, Han, roared, steam blasting from his armor as he struck like a living comet.
But Si Feng's eyes spun with cold purpose.
"Susanoo: Final Form."
The sky cracked.
A colossal armor-clad titan slammed into the mountain with divine force. The battlefield cratered. Han was fast—but not fast enough. In mere minutes, Kokuō lay defeated, sealed into the Dimensional Core with its siblings.
The Six-Tails followed next—Utakata, a tragic soul, tried to vanish into the Mist's swamps. He never saw the genjutsu coming.
"Tsukuyomi."
In an instant, his mind was shattered, and the Six-Tails was drawn into the core, adding its corrosive chakra to Si Feng's swelling power.
[System Notification]8 of 9 Tailed Beasts Secured.Warning: Dimensional Stability Now Below 18%. World Will Mobilizing Final Defense.
He stood at the Valley of the End.
Waiting.
And so did Uchiha Madara.
The ancient ghost in flesh stepped forth, eyes glowing with Rinnegan light, the Gedo Mazo behind him like a corpse deity.
"I've watched you, Si Feng. Taking what was meant to be mine."
Si Feng's Sharingan flared. "You lost centuries ago, Madara. Step aside."
Madara laughed.
"No. You're powerful. But this world belongs to us, not some foreign interloper."
He raised his hand.
"Gedo Mazo — absorb the beasts!"
The statue shrieked. Chains of chakra erupted, yanking the Eight Beasts from Si Feng's core. He gritted his teeth, blood spraying from his mouth. The Dimensional Core fractured, fighting to keep hold — but one by one, the beasts were ripped away, devoured by the husk of the Ten-Tails.
The earth trembled.
The skies turned black.
The Ten-Tails awakened.
Madara rose into the sky, his form merging with the Ten-Tails, his Rinnegan glowing.
"Now… I will become the True Sage of Six Paths."
And yet—before he could stabilize—
A black tendril pierced his back.
"Zetsu…?"
"You were never the chosen one, Madara."
With a laugh, Zetsu overtook Madara's body, warping and twisting it as a portal opened. From it, Kaguya Ōtsutsuki emerged—her pale face expressionless, her Byakugan eyes infinite.
"My world," she whispered. "How dare you corrupt my children."
Si Feng stood barely breathing, blood pooling at his feet—but his eyes burned
The moment Kaguya attacked, space warped. Mountains were gone in a flash. Gravity reversed. Lava rose from the seas.
But Si Feng had not come this far to lose.
"System. Overclock."
[Authorization Confirmed: Final Override. Unlocking Hidden Protocol – Omega Devourer]
His chakra exploded. His Mangekyō evolved. The Rinnegan opened, glowing a deep crimson-lilac, six tomoe rotating inside.
His arms split into ten — spectral, divine — and he absorbed Kaguya's first attack.
"You want war? I'll give you extinction."
Their battle lasted minutes.
That was all it took.
Si Feng struck Kaguya with the Heavenly Devouring Palm, a technique born from ten-tailed fusion and simulator energy. Her body shattered into pure chakra. He inhaled it all — her knowledge, her bloodline, her power — and stood alone atop a dying world.
"Mother of Chakra. Consumed."
Silence fell.
Then the sky turned gold.
The Will of the World had descended.
Not a creature, not a beast—but a force of law and existence. To preserve itself, it summoned the last weapon it had:
The Sage of Six Paths himself — Hagoromo Ōtsutsuki.
"Si Feng," Hagoromo said, "I do not wish to destroy you. But this world cannot survive your existence."
Si Feng's eyes narrowed. "Then let it die."
They clashed in the astral plane, blows that echoed through reality itself. Planets trembled. Stars blinked out. The Sage used every power—Truth-Seeking Orbs, Limbo clones, planetary genjutsu.
Si Feng pushed past it all.
He struck Hagoromo through the heart.
And the world screamed.
The Plundering of a World
With the Sage dead, the Dimensional Simulator activated its final function.
[World Core Unsealed]Commencing Extraction of Source Energy.
Cracks formed in the air.
The Naruto world, its timeline, chakra network, even memory—began to collapse. Villages vanished. People blinked out. Bloodlines disintegrated. The past unwrote itself.
And at the center stood Si Feng — devouring it all.
His Rinnegan evolved further, morphing into a stellar spiral.
[New Trait Acquired: World Eater]
This simulation is now concluded. Preparing return to origin reality.
A New God Ascends
When the light faded, Si Feng opened his eyes.
Back in the Swallowed Star universe.
Still standing in his quiet training room.
But everything was different.
His body radiated a new pressure. His mind housed the knowledge of chakra, celestial bloodlines, the Divine Tree, the Ten-Tails, and the fall of gods.
In his palm, a flickering orb of starlit chakra — the compressed essence of an entire universe — hovered silently.
"This… is only the beginning."
[End of Naruto Simulation Arc]