The figure emerging from the ground behind Madara was none other than Black Zetsu, who had vanished at the very start of the battle in Konoha.
Madara greeted him without betraying any emotion. "Black Zetsu, you're back."
"Yes, Lord Madara."
Black Zetsu glanced around. "Where is Lord Izuna?"
Madara pointed at the ground, right where Izuna had been sealed.
"My little brother somehow learned of my plan, and it seems he doesn't want to take my side. I had no choice but to let him rest here for now. What do you think, Black Zetsu?"
Black Zetsu's thoughts raced as he listened. "Ah... that's truly unfortunate. I had hoped you two would stand united! That would have given you another ally, Lord Madara! Sadly, Lord Izuna is still too young to understand your painstaking efforts!"
Madara scrutinized the apprehensive Black Zetsu, his gaze slowly darkening. "More importantly, Black Zetsu, don't you owe me an explanation? Where did you go?"
Black Zetsu reacted quickly. "Ah, I... went to scout the enemy! Konoha does have plenty of troublesome shinobi, after all!"
Madara said, "Why did you leave without my permission?"
Black Zetsu said, "Well, I knew that when you were fully immersed in battle, you wouldn't have time for such trivial details! Rather than spoil your enjoyment, I thought I should quietly get things done!"
Madara's lips curled upward. "Hmph. You practically live inside my head. You know my personality, my habits, my temperament... inside and out."
Black Zetsu declared shamelessly, "Of course! I am the embodiment of your will!"
"That's true..."
Madara's expression softened.
"By the way... Black Zetsu, where were you on this day a thousand years ago? And what were you doing?"
"Hahaha, of course I was with In..."
The sudden question caught even the ever-cunning Black Zetsu off