Grand Line — Emperor's chamber aboard the Uchiha.
The noise of battle outside gradually faded. In Tobirama's mind, the system's notifications rang out like triumphant music.
[Ding! Congratulations, Host. You have completely conquered the "Pirate King" world!]
[World Will suppressed. Fate plunder complete!]
[Distributing Conquest Rewards:]
[1. Authority — World Fusion: Allows perfect fusion of the conquered world with the Main World (Naruto World) on both physical and conceptual levels. After fusion, World Tier increases and the power ceiling rises.]
[2. Passive — Infinite Upgrade: After fusion, the origin of the New World feeds back into the Host, comprehensively increasing physical, chakra, and spiritual limits.]
[3. New World Coordinates unlocked. Target world confirmed: Akame ga Kill!]
Tobirama leaned back on his throne, a satisfied curve appearing at the corner of his lips.
World fusion… very good.
Stitching worlds together is the only scale worthy of the Empire.
As for Akame ga Kill—a cold glint passed through his eyes. That world's empire had rotted for centuries, its rulers treating lives as expendable. If so, it was time to end that misery.
He issued the order.
Through the Empire-wide channel, his voice spread across the pirate world:
"The war is over.
But the cleansing begins now.
"From this moment onward, the profession of 'pirate' is abolished.
Whether remnants of the Four Emperors or petty criminals of the East Blue—I grant you half a month.
"Surrender at a Marine branch and accept Imperial reform,
or disband and return to civilian life.
"In half a month, world fusion will begin.
At that time, I will personally act.
"If anyone still dares to raise a Jolly Roger—
kill without mercy."
The decree ended the so-called Great Pirate Era. With Imu crushed beneath Tobirama's feet, no one dared object.
---
Half a month later.
Above the shattered remains of the Red Line, a day destined for history arrived.
Across both worlds, all living beings paused and looked skyward. The global broadcast activated once more.
On screen, Tobirama hovered ten thousand meters above the earth. Behind him stood two colossal portals linking different dimensions.
Madara stood on a cloud nearby, arms crossed, eyes narrowed.
"Hey, Hashirama," he muttered. "Fusing worlds… even the Sage of Six Paths never did that. Isn't this absurd?"
Hashirama laughed and scratched his head. "If His Majesty says it can be done, then it can."
Madara snorted, but his Rinnegan never left Tobirama.
"The time has come."
Tobirama opened his eyes. An unfathomable aura radiated from him—not chakra, not Haki, but the authority of world origin itself.
"System. Initiate fusion."
"In my name—reshape the universe."
Divine Authority: All Worlds Become One!
Boom!
No sound could describe it, because the entire planet trembled.
The sky cracked open. The blue heavens of the pirate world overlapped with phantom images of towering mountains and endless forests—the Naruto World descending.
"Merge."
With a single motion, the two worlds interpenetrated like flowing water rather than colliding. Oceans expanded, continents connected, and the Grand Line became a vast channel encircling the new landmass.
Chakra and Haki intertwined, forming a higher-order natural energy.
"The land… it's bigger!"
"The air feels different—I'm stronger!"
The planet's volume surged severalfold, becoming a true superworld.
High above, immeasurable golden energy poured into Tobirama—world feedback.
He felt internal shackles shatter. His power ascended once more.
"This," he murmured, "is evolution."
---
New Imperial Capital — formed from the fusion of the former Hidden Leaf and Mary Geoise.
A grand victory ceremony followed. Leaders, heroes, and representatives from both worlds gathered to mark the birth of the New World and the Empire's rule.
Tobirama addressed them calmly, laying out the structure of governance, reconstruction, and integration. Former enemies became citizens; chaos gave way to order.
When the ceremony ended, dawn broke over the new capital.
At the palace's highest terrace, Tobirama stood with Madara and Hashirama behind him.
"This world is settled," Madara said, bored. "When do we move on?"
"Soon," Tobirama replied, his Rinnegan gleaming with conquest. "This world is now our foundation."
He raised a hand. A blood-red portal opened before them, carrying distant echoes of war and despair.
"Next destination," Tobirama said.
"A world drowning in Teigu and tyranny."
He stepped forward.
"A new campaign begins."
With that, Tobirama vanished into the crimson light.
A new journey had begun.