Here we have #19, Muttering Tiara shadow seems to be lost deep inside their thoughts and not really telling you why they are making your life more challenging.  I think you can think of a way to snap them out of it. 
 
More information can be found on Muttering Tiara's Wiki.
 
Persona Super Seals were included in a wide range of Persona 3 physical releases as a fun collectable covering both the major players as well as the shadows they encounter.  We have not tried to stick any of these to anything, but we take their word for it that you can apply these on most any desired surface. 

The descriptions on the back are in Japanese, we hope to have these all translated at a later date and set up on their own menu listing and more detailed trivia on the person or being on the face of the seal.  This series runs up to #83 (more?).

~This item qualifies for Lettermail super affordable shipping~!