Well, the story behind this is interesting but it's being handled like an oiled pig, it squirms around so it's hard to grab, occasionally you can grab it but it slips away again.
This would have been done much better if they focused it as being pure hentai. The amount of plot holes and not enough explanations to pretty much everything that's going on is really annoying, the only redeeming factors in this show are pretty bimbos with no bra in most cases hating each other and dismembering each other at any occasion.
I have no idea what would be so fun in seeing girls slashing each other like this, the story was written by someone who obviously hates women, probably hanayome's relative.
If they actually put more effort into a proper story flow and explain stuff, this wouldn't be such a bad show. But in my opinion, without it's redeeming factors, this is on par with Guilty Crown, it's THAT bad. Guilty Crown only redeeming factor was the music. This one has tits and pretty faces. That's all, they really should follow the source material closely, but they had to go all fanservicey and original. I hope there won't be a second season, and if they will make it, someone with a brain will direct it.