After some discussion, the staff and I have decided that characters from other worlds (that is, characters who are not from SotE's world) need to be approved by an admin before they are joined and played.
Not to worry! Characters who are already joined and in play are fine and will just be grandfathered in and nothing needs to be changed; any other characters from other worlds/realms/dimensions need to be approved. Just contact an admin first! :3
Thank you! <3