Kaiba listens, and he looks surprised to hear the last words following the first ones. So he doesn't care, but...he would miss him? That stirs up a reaction in him, and he finds himself stepping forward. Not fully into his space, just a friendly conversation distance.

"I'm glad I worked with you. And...I do have a digital database of the cards and the rules, if you have something to download it to. You could print it in your world."

But he's still insistent that there's more. "I'm trying to hold on until we fix...all this mess. Someone has to."