At what point, I wonder, is it appropriate to add a horror tag.
I feel like it's definitely sidling up to that line, though I think it possibly hasn't quite crossed it yet. Certainly if the current increasingly-ominous trajectory continues...
Now we just need the reveal that she pushed him in front of the car so she could get his soul for the bear and it'll be just like a zombie yuri doujin I read.
@Suck-a-duck the translator literally explained that in chapter. Its a Japanese concept.
"Ikiryō (生霊, Ikiryō), or shōryō, seirei, ikisudama, in Japanese popular belief and fiction, refers to a spirit that leaves the body of a living person and subsequently haunts other people or places, sometimes across great distances."
@anoman Everyone has a body and a spirit, just that the spirit is bound to the body.
This is the trinity of mind, body and spirit, which is used in most of the big religions (eg. buddhism, christianity).
Mythologically the spirit can leave and rejoin the body sometimes.