Everyone's eyes focused on him, and Yamada Ken began to feel uncomfortable. He instinctively took two steps back. "What... is it?"
Kira took the card from his hand and explained the source of their confusion. "You just said 'Tribute,' right?"
"Tribute? What about it?" Yamada Ken asked, puzzled.
But the instant he realized he had asked that question, everyone's gazes around him became even stranger.
"'Tribute' is a common type of COST in the Dueling Rules. You send a Monster to the Graveyard in order to Tribute Summon, or use it as a COST to activate the effects of specific cards. Naturally, it is a perfectly normal concept to you.
"But unfortunately, that concept has never been formally introduced in our dimension."
Kira smiled.
Yamada Ken was stunned. "Your dimension doesn't have Tributes? Then how do you summon Tribute Monsters?"
"We call them sacrifices here. Sending a Monster to the Graveyard for the summon of a Tribute Monster is collectively called offering a sacrifice," Kira said calmly. "No card designer in this dimension would ever write the word 'Tribute' on a card, unless there was one possibility.
"That person came from another dimension, one whose terminology for certain rules differs from ours."
In fact, the concept of "Tribute" had only been changed in the course of Yu-Gi-Oh! after the Synchro Era began. They had probably felt that calling it a "sacrifice" sounded a little too barbaric.
Hearing that, Yamada Ken seemed to realize that he had been completely exposed. He stopped pretending and openly showed his impatience. "Ah, ah, ah. Calling them sacrifices and tributes... this really is a barbaric dimension after all."
Judai said, "Eh? So you really are from a Different Dimension."
"That's right!"
Yamada Ken put away his previous trembling expression and declared proudly.
"If you classify