Black Zetsu stopped dwelling on it.
All he knew was that Feng Yao had deceived him.
What Feng Yao wanted was to unify the Shinobi World. He did not agree with the Infinite Tsukuyomi Black Zetsu had devised at all.
Now even Hashirama Senju was no match for Feng Yao.
That meant it was only a matter of time before the entire Shinobi World was unified.
At that thought, Black Zetsu could not help growing anxious.
Once the Shinobi World was unified, wouldn't all his years of plotting have been for nothing?
No, I can't let Feng Yao unify everything!
Having made up his mind, Black Zetsu immediately arrived at the same decision as Hiruzen Sarutobi: resurrect Madara Uchiha with Impure World Reincarnation!
Hashirama alone could not defeat Feng Yao, but what if Hashirama and Madara joined forces?!
Black Zetsu could not figure out how these people in Konoha knew about the Ōtsutsuki. Obito might have revealed the Infinite Tsukuyomi, but Black Zetsu had never mentioned the Ōtsutsuki at any point. Even Madara did not know about them.
Black Zetsu simply decided not to bother with it.
The fact remained that Feng Yao posed far too great a threat now.
Elsewhere.
Danzo and the other four led a large contingent of ninja from Root, the Anbu, and the Military Police Force toward Konoha's dungeon.
Kakashi had taken Obito away right after Sasuke revealed the future.
But afterward, Hiruzen Sarutobi had still ordered the Anbu to imprison Obito in Konoha's dungeon.
After all, not knowing was one thing, but now that they knew what a beast Obito was, how could they let him stay comfortably in the village?
Murdering his teacher, instigating the Night of the Nine-Tails, starting the Fourth Shinobi World War...
Any one of those alone was enough