"Madara, why did you kill so many people?"
"To save people."
"You killed them! How can you call that saving people?"
"I had to kill people first to save them."
"You're just twisting the logic!"
"Tch."
Madara scoffed dismissively.
"Hashirama, you're old now. You haven't kept up with the times."
"What do you mean, I'm old? Aren't we about the same age? And what do you mean by keeping up with the times?"
"I can't be bothered to explain. Talking to you would just be a waste of breath."
"You!"
Seeing Madara turn away and ignore him, Hashirama looked anxiously at his younger brother, Tobirama.
"Tobirama, look at him!"
Tobirama sighed as he looked at his older brother.
"All right, Brother. I'll explain it to you."
Tobirama began explaining the whole story to Hashirama. Naturally, he spared Madara Uchiha no embarrassment, bluntly pointing out that Black Zetsu had deceived Madara from the very beginning.
Granted, that made it seem as though they were pinning all the blame on Black Zetsu.
But on closer consideration, it seemed perfectly reasonable for Black Zetsu to shoulder that blame.
"What? Infinite Tsukuyomi lets the God Tree drain everyone's chakra and turn them into creatures called White Zetsu!
And once they've become White Zetsu, there's no way to turn them back?"
Tobirama nodded and said,
"That's right. Apparently, the White Zetsu summoned onto the battlefield were actually people from ancient times whom Kaguya transformed."
"So Madara really did kill all those people to save them?"
Hashirama still couldn't quite understand.
"But they're still dead, aren't they? They didn't become White Zetsu, but that doesn't count as saving them, either."
"All right, Brother. No matter how much I explain now, you'll probably still struggle to understand. Wait a few days. You'll see then."
After saying so