Xian Er's attitude made Madara realize that this fellow no longer obeyed him as unquestioningly as before. His wings had apparently grown strong.
Although Madara did not know exactly how he and Xian Er had gotten along in the other world, Xian Er's current behavior clearly showed that he harbored hostility toward his other-world self.
As Madara pondered this inwardly, he subconsciously stroked his chin, then turned his gaze toward Xian Er and asked slowly, "How was the Ninja World when you came here?"
Hearing this, the corners of Xian Er's lips curled up into a faint smile, as though he had long been prepared for this question. He replied unhurriedly, "I activated the Infinite Tsukuyomi. I imagine they have all fallen into an eternal illusion by now.
"In that world, everyone can obtain the happiness they desire, and war will vanish from this world forever."
By the end, Xian Er's laughter grew louder and louder, as if he were immensely proud of the "wonderful world" he had created.
"And I became the second Sage of Six Paths—the god of the Ninja World!" Xian Er looked utterly arrogant, his laughter echoing through the space as though it would shatter every restraint.
Yet Madara was unaffected by Xian Er's laughter. His brows furrowed slightly as he pondered in silence. According to what Obito had said before, his other-world self was the one who had initiated the Eye of the Moon Plan. So what exactly was this Xian Er now?
Could it be that he would stand by and do nothing, watching Xian Er claim the fruits of victory for himself? Madara shook his head. He absolutely did not believe he would give up so easily.
Just as Madara was thinking, Black Zetsu suddenly emerged from Obito's body like a ghost. The