Now that we know all the bear motifs were just part of Ginko's illusions and Sumika's psychotherapy hocus-pocus, what happens to the supernatural tag now?
On an unrelated note, this is by far one of the most unexpected manga i thought i would have enjoyed. For those peeps who feel confused about the manga storyline, don't fret as its the same in the anime. Try giving the anime a shot first, as it may or may not help your confusion, since its written by Ikuhara who's a complete troll in plot exposition but it unfolds itself quite nicely in the end. But I don't deny that this is the sort of manga that one would have to take time to sit down and read in one go.