Overlord Superman looked at Bruce with some suspicion. He had just opened his mouth when he realized that what he wanted to ask was rather impolite, but he could not care about that now. "Your parents... Uh, you're Batman from another universe, so does that mean...?"
"What?" Bruce looked somewhat confused.
"I mean, since you're Batman, what made you become Batman?"
"Gotham City's tourism revenue." Bruce looked a little embarrassed. He grinned and said, "Possibly the mayor's big mouth too."
Overlord Superman seemed to suddenly think of something. He muttered to himself, "Right. Although every universe has a Batman, perhaps the reasons they became Batman aren't the same either. Could it be that only..."
Overlord Superman could not continue. He turned his head away as though deflated, unable to maintain that stern, imposing expression any longer. After standing there blankly for a moment, he turned back to Bruce and asked, "Then is Martha here too?"
"Neither of them is here right now." Bruce shook his head. "They probably thought I was too annoying, so they went traveling."
Overlord Superman took a deep breath and opened his mouth as if he wanted to say something, but in the end, nothing came out.
His feelings became even more complicated, because he suddenly realized that his understanding of parallel universes might have been too narrow.
He had only known that every parallel universe had its own counterpart, as well as a counterpart of Batman, all corresponding one-to-one. But he had never considered that even with the same origins and identities, their experiences could be completely different.
For instance, Overlord Superman had once heard the Batman from his universe speak of some of his experiences. Batman had not done so voluntarily; it was simply that, back when Overlord Superman had still been Superman, he