The Great Toad Sage did not conceal Hagoromo Otsutsuki's identity, nor did he hide the truth about the reincarnations of Asura Chakra and Indra's Chakra.
For someone as powerful as Uchiha Yi, uncovering those supposed secrets would hardly be difficult.
The Tailed Beasts knew them, and so did the sages of the Three Great Sage Lands.
Uchiha Yi had formed a contract with the Slug Sage and was now a disciple of Shikkotsu Forest. With Yi's strength having reached this level, the Great Toad Sage believed the Slug Sage would have told him these secrets.
Besides, some things were secrets only to the weak. To the strong, they never had been.
"Then why did you call me here this time?" Uchiha Yi asked.
"How much do you know about the origins of the Uchiha Clan and the Senju Clan?" the Great Toad Sage asked instead.
"Asura and Indra? Hagoromo Otsutsuki, and the legendary Kaguya Ōtsutsuki." At the mention of Kaguya Ōtsutsuki, Uchiha Yi gave a knowing smile.
After all, Gamamaru had played a part in Hagoromo Otsutsuki's rebellion against Kaguya Ōtsutsuki.
Of course, as far as the people of the Shinobi World were concerned, the Great Toad Sage deserved credit. Though Gamamaru's original motive had been self-preservation, he really had saved the Shinobi World.
At the name Kaguya Ōtsutsuki, the Great Toad Sage's enormous pupils contracted sharply. He had not expected Uchiha Yi to know about her too.
Still, it was not entirely beyond belief.
"Then there's Ōtsutsuki Isshiki, who's still alive in the Shinobi World. Kaguya Ōtsutsuki only wounded him badly back then. He's spent the past thousand years recovering.
"He was Kaguya Ōtsutsuki's superior, and he was stronger than she was.
"I wonder how much of his strength he's regained by now." Uchiha Yi followed up with another