Another thought about the doctor: I don't think the doctor even knew Yakumo's mom; hell, he probably never met Yakumo before that day. It was all role-playing for the doc. He says whatever that villain guy told him to say.
You know, I think that doctor's dead daughter is trying to help Haruka before by trying to warn her but Haruka just couldn't understand what she was trying to say. I don't think the ghost girl is evil, unlike her misled father. I also think her spirit being trapped under the river may have something to do with the villain as well.
@
Hooves: well, Haruka was the one that saved him from that first step into darkness. But if that villain uses the very person Yakumo cares about (...and he is certainly warming up to her
)...he might break - unless Haruka can reach him in time; that is, if she doesn't get possessed or something herself. :O