"Mm. Maybe that one focused on completely different 'universes'... Ones where one group of people exist, while others don't."

He had his own thinky face for a moment, but now he's looking back up at Hattori. "I know for a fact that Ayumi-chan's 'duel monsters' aren't common among most universes; and with that, neither are the top players. It's like they just don't exist in worlds where the game isn't."