Story: This was an interesting anime, to say the least. This story had about three different plots going on at the same time, making it hard to follow which story is being told when, and for what purpose. The "main" story that is trying to be told is of two brothers, Hyoi and Ryoi, who infiltrate a school in order to find a source of evil behind the disappearances of random people. Very quickly these brothers find the mastermind behind the disappearances, a man named Jukokubo. Hyoi and Ryoi also encounter some monsters that look like blobs with tentacles, but later find out it is the evil emotions within a human that bring about the form, so the story also contains a bit of gore. What is funny about these three is they can all switch between a cat and human form. Hyoi and Jukokubo are from a group called Dark Cats, though Hyoi left because Jukokubo is evil and is the one who taught him everything he knows (as I understand it).
One of the other plots trying to force itself to the front is centered on a girl, Takako, who is in love with her childhood friend Hiroki, who does not share her feelings. This plot line is presented with about as much time as the previous plot, which makes it difficult to tell a complete story on either end, with the 60 minute time limit.
In the end, I decided the story deserved a five rating. The base idea was pretty good, but was not capitalized on. The story had a bad habit of jumping from one story and back to the next, but making no connections in the process. Other parts of the story made no sense, such as Hyoi needing healing by a tree in a forest. By the end, the story had more holes than Swiss cheese.
Animation: The animation fluctuated a little too much. In many parts, the animation was pretty poor, but in other spots, it was well done. The best animations were typically done with the few gory parts. Due to the large jump between poor and great animations, this was given a rating of 6, though the good animation scenes saved this from a lower score.
Sound: The voice acting was not bad, but it was not great by any stretch of the imagination. The voices for Hyoi, Ryoi, and Jukokubo were the better of the lot. The music was just a crazy dash of horrible 80's teen music, with the occasional piano piece set in the most emotional parts. Other than the piano parts, the rest of the music was placed in bad spots and ruined some of the moments. The sound effects were not too bad either. They were used appropriately and moderately, not bogging the story with unnecessary sounds. The piano parts and the sound effects were really the saving graces of this anime's sound, warranting a six rating.
Characters: There were too many characters with too much air time to develop any well enough. Between Hyoi, Ryoi, Takako, Hiroki, and Jukokubo, it is difficult to focus on anyone character enough. This is one of the weakest points of the story. The situation between Hiroki and Takako is explained a little bit in the end, with just enough to have a basic idea of what happened between them, but a background story on them and the others would have really helped develop a better idea of who these characters were and why the viewer should care about them. I felt a five was necessary, due to the lack of development of any of the characters to a better extent.
Overall: This anime had some really neat ideas abounding, but decided to lose itself among all the random happenings. If this OVA had been given a little more attention and made a little longer or given a second episode, the story could have been really interesting and worth the watch, but as it stands now, it is hardly worth a mention.