User blog comment:B214/Question and Answers 4/@comment-24502975-20141102214513/@comment-1359322-20141103001803

Just inserting myself to the transportation circle discussion.

I'm guessing that the Devils' Transportation Circle and Magicians' Transportation Circle functions in different ways. For the Devils, all they need might just be a grasp of the location they know then they can transport there, while for magicians they need to set the specific coordinates so that they don't go to the wrong place.

Now i'm sure someone would bring up that Issei or the others wouldn't know the location of some new clients, but there's the flyer distribution. The flyer can just act as a medium for the transportation.