Usually I don't like ghost stories because they are inevitably sad and it ending up tragically is a forgone conclusion (either the live one dies or the dead one moves on).
Never the less after the frustrating build-up the story became really interesting.
It's getting really good. I don't even pay attention to the yuri, the story is just interesting. Usually I hate idol stories too. It's a good mix of funny and sad without being too over the top