[He ridges his eyebrows, staring into Yusuke's eyes for the truth. Not that he thinks he's lying, but...maybe he got a concussion during the fighting or drank some spiked punch or something? Or maybe none of this was real and the whole thing was some extra-savvy Facebook illusion???

[...Or maybe it wasn't anything of the sort, and Kaiba's glad he's still sitting down since he's not sure how steady he'd be if he wasn't.

[He weighs this silently for another long while before creaking out a response]

...Five years.