[There's an admission there, about the security of Yuan's office and his usual duties; if Kratos can't get there without an escort.]

So I would only be able to go there while you're in the room.

[That does shorten some of the potential a bit, if Kratos can't retrieve things from Yuan's office for him, or delivery something without escort; but it's possible he can earn some level of trust. ... Which isn't the point, really; he's there to be the go-between for Yuan and the staff.]

Still, it would be worthwhile, I think --

[Discussing the logistics of the venture takes up the rest of the meal, and some time after it.]