After Madara finally kicked the bucket, Black Zetsu first breathed a sigh of relief.
I finally outlasted that old bastard. Things will be easier for me now.
While Madara was around, Black Zetsu not only had to answer his questions according to his wishes every day and run his errands.
He also had to steer Obito toward the Eye of the Moon Plan from time to time.
But as a competent actor, Black Zetsu had perfectly managed to outlast Madara and successfully infiltrated the Akatsuki with Obito.
From a complete mess at the start to having Mom's rescue within reach, Black Zetsu was feeling much more excited now.
However, a problem had emerged without him noticing.
That problem was Ryūchi Cave.
Black Zetsu actually knew the location of Ryūchi Cave, one of the Three Great Sage Lands.
After finding out that the bastard Hagoromo had learned senjutsu at Mount Myōboku back then, he had secretly observed all Three Great Sage Lands.
Thanks to his excellent ability to conceal his presence, the three Sages had not discovered him, and he had secretly observed them for decades.
In the process, he had discovered that the Three Great Sage Lands had largely stopped involving themselves in the outside world after Mom was sealed.
But they still had successors in the Shinobi World, especially Mount Myōboku, which was the most active of them.
Many shinobi had signed contracts with Mount Myōboku during that time. The long list of names on the Contract Scroll Naruto had previously signed was the best proof.
Although that great white snake in Ryūchi Cave did not know his identity, Obito had gone there to learn senjutsu.
As a result, he now had not only hopes for Obito, but also wariness toward him.
If Obito broke away from the plan