Pretty darn isolated, to have more adult friends than kid friends, huh? But Mokuba's not complaining about his lot, he understands the pressures his brother's under, and wants to alleviate them as much as possible.

That being said...when Yuugi asks what could have happened, Mokuba shifts his weight from one leg to the other, arms still crossed as he rolls his eyes.

"He had to entertain last night, and I thiiink...well, uh. You know, he's a vampire, and they don't really need to eat, so whenever he has a night meeting and someone wants to do dinner..."

"...Th'n I hhhave to play al'ng," Kaiba mutters, his words slurred. The paralytic is starting to wear off, but he still sounds ridiculous. "Stupid..."

He's not calling anyone in the room stupid in particular. Mokuba actually gets it, and he lets out an annoyed sigh.

"Yeah so remember that meeting I said he had, with the guy we don't like? He's American, and he likes to do over-the-top stuff while he's visiting. Like fancy omakase and drinks, apparently" Mokuba said with a frown on his face. "Bro, I don't know why you entertain that guy! He's annoying!"

"Bus'ness," Seto responds grouchily. Industrial Illusions was another gaming giant, the one that created and distributed Duel Monsters. Of course Kaiba has to collaborate, his Solid Vision is meant to work in tandem with the game!