I feel like the hentai-with-a-story genre got extinct around 2002-3, so this one might be one of the last ones ever. It was really sad to find out that this is pretty much a pilot.
Even though this is from 2006, it looks like it was made around 2001 or earlier if you look at the art style. The story starts out as a comedy and gets serious midway. You get al the tropes of the genre: rape, blackmail, a nonsensical plot, stupid jokes, lolis (although no sex), violence, virgins and foursomes. Just pure freedom of creativity. Nostalgic, isn't it?
Animation was pretty decent. There is a short fighting scene that surprised me in that regard. Anyway, even though the story is what you would expect from a low budget hentai, it gets interesting towards the end; it's a shame that there wasn't even a 2nd episode, but understandable considering the time this was released.