Remedy/theories

Sworn Enemy:
It seems that Hareta had a enemy, and in the end, judging by one place which can be enable from interaction with Flask of Yellow Medicide, it seems that enemy, girl with dark-pink hair, let's name her Kira, killed Hareta, its can be proved by shorthaired Hareta's ghost, girl with creepy evil smile and ofcourse, slayed parts of Hareta's body.