Hello. Well this was probably the most disturbing thing I have ever seen in my life. Not only is this the most disturbing animated series I have ever watched, it is the most disturbing fiction work I have had the pleasure of experiencing.
This is one of those series that makes you cringe but you still love it because it takes you on a well written story. Where as this is still not my favorite horror anime, I still think that it did an amazing job with what little time it had. It had a story and a conclusion and we were not left with a cliffhanger like Umineko left us with. But what I really want to emphasis on is the fact that series fit everything into 4, half-hour long episodes. This is amazing for that small length of time.
I also want to bring in the concept of how good the disturbing art was. The art in this series did such a good job at making the art disturbing and grotesque that I almost vomited a couple times throughout the series. I did notice some similarities between this and the Team Silent Silent Hill game's art, what with blood coming down the walls and bodies everywhere, and that was generally a good choice, just to make the series that little bit more disturbing.
The opening theme was pretty good and most of the background sound, or even the lack of sound at points was a good choice for the series. You can really see the inspiration from Akira Yamaoka within the soundtrack and I thought that it was genuinely a good choice to go that way for a horror series.
The place where this series is a bit lacking is the unoriginal cast of characters. Though, to be fair, it is harder to create a cast of characters within this genre of horror that is original while also keeping it in a more modern time line, you could of done better than taking the generic cast of highschool students (2 possible lesbians, 1 guy with glasses, 1 hopelessly brave guy, the little sister, the occult freak, and the guy with no defining features what so ever, otherwise know as the boring guy). But the character of Sachiko was pretty original. Half of the things that happened with this character I didn't see coming and I just love her voice actress.
But for my overall enjoyment. I really enjoyed this series. it was a very genuinely well made horror series that kind of goes away from the norm. I do genuinely believe that there aren't many series that pulled off this sort of thing nearly as well, and definitely not in the same time frame as Corpse Party.