Hearing that the man in the tiger-striped mask was Madara Uchiha, Sasuke froze for a moment too.
"A guy who hides his head and shows his tail—how could he possibly be Madara Uchiha, the ancestor of the Uchiha Clan?"
After all, he had once heard Lord Charlotte mention that when he pacified Jotunheim, Lord Charlotte had brought along a clone of Madara Uchiha similar to the Second Hokage's, just as he had when resisting Demons in the Magic World.
Supposedly, Madara Uchiha at the time had even impressed Thor greatly. But how could the person in Itachi's memories be Madara?
Thinking of how the Third Hokage had exhausted his own life and had still only sealed away Orochimaru's hands, while he himself had completely killed Orochimaru...
If that man really was Madara Uchiha, with his strength, he would probably have been enough to sweep through Konoha of that era. After all, Hashirama Senju, the only one capable of subduing Madara Uchiha, had long since passed away, and even the Second had been dead for many years.
After thinking for a moment, Itachi Uchiha also said, "He called himself Madara Uchiha. Although I was never able to confirm his identity, his Mangekyō did not have the issue of blindness."
"Besides advancing into the Mangekyō Sharingan, the Sharingan has another stage above it: the Eternal Mangekyō."
"An ordinary Mangekyō places a considerable burden on its holder. Using the Dojutsu of the Mangekyō Sharingan itself multiple times carries the side effect of blindness, and it also affects the caster's body."
"But these side effects no longer exist once the Mangekyō advances into the Eternal Mangekyō."
"It is said that the Eternal Mangekyō is a Dojutsu that can only be awakened by transplanting someone else's Mangekyō Sharingan. And it is not guaranteed to awaken.