Tobirama Senju regretted pushing Madara Uchiha so hard that he lost all hope in Konoha. Madara's subsequent battle with Hashirama Senju had led to Hashirama's early death.
Tobirama had always felt guilty about it.
Come to think of it, Madara's movements had been restricted for some reason back then. He had also worried that Tobirama would escape with the Flying Thunder God Technique, so he had controlled Kinkaku and Ginkaku to deal with him.
That explained everything.
Now that Tobirama knew Madara was still alive, he naturally wanted him dead. If he could, Tobirama would gladly join the fight himself.
But Uchiha Yi's words gave Tobirama even more cause for concern. If Madara had planned for Shimura Danzō to bring him and his elder brother back with Impure World Reincarnation, then...
Damn Shimura Danzō. He's made a complete disgrace of me.
Tobirama spent a long time sensing Shimura Danzō's Chakra before asking with some uncertainty, "I don't sense any sign that Danzo is under Genjutsu. Of that, I'm confident."
"Shimura Danzō isn't under Genjutsu. Controlling him that way isn't necessary to use him. A few small moves would be enough.
"Madara has used the First's cells to cultivate a kind of white creature that can disguise itself as any Ninja. Ordinary Ninja have no hope of identifying them. Only the Nine-Tails' ability to sense good and evil can do it. Not even the Uzumaki Clan's sensory abilities are enough," Uchiha Yi explained, dropping one revelation after another.
Sure enough, Tobirama's heart tightened. Creatures like that exist?
Madara Uchiha can do something like that? To Tobirama, Madara had always been more of a brute.
Tobirama knew the Uzumaki Clan's sensory abilities well. His own were powerful, and he had always taken pride in them, but even he would not claim they