It's about 2 friends (plus 1 on start, another one on 3 or... was it 4? and another one a long the way... and so on) fighting some weird "phantoms". All of this happens because some giant umbrella corps-wanna be fucked shit up. That's it.
No really, that's it. That's all you need to know. It starts off with a fan service shit that's over-the-top disgusting, ends up with a punch to your balls/vagina 'cause "we need a serious plot LOL" which only lasted 1 and a half episode. Sad ending? PFFT it's not sad all, it's so mediocre and bland that I actually punched my screen 'cause I was so annoyed.
If there's a season 2 of this, I'll just watch it while I'm screaming in agony.
And I thought Koukaku no Pandora was bad...