A mysterious being that shows up in the background of episode 21 for a very brief moment. It is never referred to or explained what it is. It appears like a ghost with bright yellow eyes. In this episode Caron is being controlled by a doll that is working for the Jurals. The ghostly creature known only as "Behind Caron" is too high to up to be the doll itself. People speculate it could be Barican spying on Caron as she leads her mother to the forest to become sacrifices for the Jurals.
When Behind Caron shows up, the BGM has trumpets, when Behind Caron shows up in MAD's it is usually accompanied by those trumpet sounds.