He waited until late at night when the entire Uchiha Clan became silent. Uchiha Madara pushed open the door and walked out of the courtyard, looking at Rosen on the wall.
"Why are you here?"
Rosen tossed a glass container to Uchiha Madara. Inside the glass container, a pair of Sharingan were submerged.
"This is?"
"Install them."
Uchiha Madara removed his own eyes and replaced them with this pair of Sharingan.
Instantly, a familiar power began to flow through Uchiha Madara's entire body.
Following that, a terrifying aura spread throughout Uchiha Madara's entire body.
Powerful! An indescribably powerful force.
The Sharingan in Uchiha Madara's eye sockets transformed from Three-Tomoe to Mangekyo, then from Mangekyo to Eternal Mangekyo. Immediately after, the Eternal Mangekyo's patterns began to spread, forming ripples.
Uchiha Madara gently stroked the eyes in his eye sockets, then looked up at Rosen in shock.
"This is?"
"This is the Rinnegan. Your eyes evolved successfully faster than anticipated and can now be used to revive Izuna. However, you still need to wait. If you activate the Rinnegan's dōjutsu now, you will have to pay with your life." Rosen said, "Also, before our plan begins, do not use these eyes in front of outsiders. Once used, you must eliminate any witnesses. We cannot let Black Zetsu know that the Rinnegan has appeared in the Ninja World."
To cultivate this pair of Rinnegan, Rosen had transplanted Hashirama cells.
Uchiha Madara nodded: "Are you giving your last instructions?"
"No, I may need to go into a period of slumber to prepare for the true plan to begin."
"How long?"
"I cannot give you an accurate answer to that."
"If it's decades, I can't wait that long for you."
Uchiha Madara was already nearing fifty years old; in a few more years, he would enter old age.
"Transplant some of Hashirama's cells; they can extend your lifespan. If you truly can't wait, remember to transplant your eyes to someone from the Uzumaki Clan. The Uzumaki Clan's powerful vitality can ensure the Rinnegan doesn't lose its activity."
Rosen had already spent thirty years in the Ninja World, so he didn't have enough time to initiate that plan; he needed to return to the Marvel Universe.
Once he exceeded thirty years, for every additional year he stayed, the spacetime point for returning to the Marvel Universe would increase by 10%.
After returning to Mountain Graveyard, Rosen called Black Zetsu.
"The last battle with Uchiha Madara and Senju Hashirama caused me severe injuries, so I now need to go into slumber to repair my body's damage. Do you plan to slumber with me, or move freely?"
Black Zetsu heard this and asked with concern: "Master, how long will you be in slumber?"
"I don't know; it depends on when I fully recover from the damage."
"I hope to be able to move around the Ninja World on your behalf while you are in slumber, to screen and recruit like-minded Shinobi for you."
"Alright then, while I am in slumber, I will also Seal Mountain Graveyard. No one will be able to enter, including you."
"Yes, Master, I understand."
With that, Rosen lay down in a coffin, while the Four Shadow Demons pulled the coffin to sink underground.
At the same time, runes began to spread outwards.
Black Zetsu immediately avoided the runes. The runes spread to all areas within the Base; every inch of ground covered by the runes would fall into silence.
Black Zetsu finally left the Mountain Graveyard underground Base. He looked at the entrance to Mountain Graveyard, and the entrance suddenly collapsed, completely Sealing it off.
...
"Return to the original World."
[Returning, beginning settlement.]
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