What kind of joke was this? If Madara Uchiha were brought back, what would be left for Obito Uchiha to do?
In Obito's understanding, Black Zetsu was Madara's incarnated will, so his stance would definitely favor Madara Uchiha.
Not himself.
From beginning to end, Obito had always been wary of Madara Uchiha.
He had never trusted him either.
Except when it came to the Infinite Tsukuyomi plan.
That was why he wanted to cast Madara Uchiha aside and go it alone. The Eight-Tails was already in hand, so it did not matter whether Madara Uchiha was around or not. As long as he obtained the Rinnegan, the result would be the same.
It seemed Obito was unwilling to become a puppet.
But could he achieve what Madara had?
After considering it, Black Zetsu decided to wait and see. He wanted to see just how far Obito could go. In any case, he had a backup plan. Whenever necessary, he could revive Madara Uchiha through Impure World Reincarnation.
If Obito failed, then he could only be sacrificed so Madara could be revived.
But if Obito accomplished everything Madara Uchiha could, then why revive Madara Uchiha at all?
What Black Zetsu wanted was the result, not the process.
How the process unfolded was unimportant. The result was what mattered.
Whether it was Madara Uchiha or Obito Uchiha, as long as someone could become the Ten-Tails' jinchūriki, plant the Divine Tree, and activate the Infinite Tsukuyomi, that would be enough.
That person could be Madara Uchiha, or Obito Uchiha.
Who it was did not matter. The Infinite Tsukuyomi was what mattered most.
With that thought, Black Zetsu fell silent. Since Obito wanted to play, he would let him. That guy had become as uncontrollable as a lunatic.
"Let's go. Return to the base.