Note: I did not watch this as a fan of the group nor did I realize it was a Jpop band before hand. It was only after watching I found out. So I’m basing the review as far as the cast goes on them as actresses and not as singers.
Story - 7.0
I enjoyed the murder mystery type of feel. It was interesting, and it made me keep wondering how they got there. I was disappointed with the many plot holes throughout but I still kept watching. I think it’s worth a watch at least for the story wise if you are wondering what watch. Maybe you’ll also be trying to figure out why the girls were forced there.

Acting/cast - 6.0
The casting in the beginning was questionable. The only one demeaning to be decent was who they chose to be left at the end, except for the one, who I won’t mention for spoiler reasons. Some actions that they were told to take, were questionable, and you could tell the girls didn’t really know much about acting. They did manage to give of the sort of theme, but I found the casting choices were questionable at some points. But it did manage to show off the band if that’s what they were trying to achieve.

Music - 5.0
The music was a little light and a little off putting to me, at some points. I found the theme song didn’t really necessary go with the overall dark tone theme, but that could also just be personal taste. I understand that this was to showcase the group now, but at the time of watching, some of the music background I wish was a little darker. Also I’m not really a music person, so this section is always a slight mystery to me.

Rewatch - 1.0
I enjoyed watching the film towards the end due to the plotline and I honestly just wanted to know why, so with that knowledge, I don’t believe I would ever venture to rewatch it.