Okay, let's be real here. This is a hentai from the early 2000s, were you really expecting something good? If you were, let me tell you right now, don't even bother watching this, it's probably the worst hentai I've ever watched. But since this is a review, I should explain in more details why this is so bad, so here we go.
Story - 1: There might be some people out there that actually watch hentai only for the story, but the majority of people don't. But if you are one of those that actually enjoy story when watching hentai, just skip this one. I'll
try to explain what this show is about without "spoiling" too much.
We have this new teacher enroling in a new school, she's pretty hyped about her new job. But when she gets there she figures out that they have a "special" type of lession there (yeah, exactly what you are thinking). As soon as she sees that scene, she decides to leave, but someone gives her a type of drug, and then she gets raped by everyone in class.
After that she actually leaves, but a student explains that they thought she knew about everything, and that the lessons they have there are the best, so she decides to come back and fuck everyone again...
I'm not even kidding, that's the "story" of this piece of fecal matter.
Art - 1: For a hentai that aired in the early 2000s, the art here is really pathetic. I've watched other shows (hentai ofc) from the 80s and 90s that have way better art than this... I guess the budget was pretty low.
Sound - 5: I'm not gonna be unfair just because I hated show. The sound in here is really not that bad, we do have some good background music, and the voice acting is actually really good - the voices fit the characters really well.
Characters - 1: Probably the worst part after the story. We only get to "know" 4 characters. The two female teachers, the principal, and one of the students (the other students are pretty much just background characters that don't really have any lines). The main girl is pretty much retarded, she gets convinced that sex is the "true type of education" by a horny teen and then comes back to the school. The principal is a pervert, the other female teacher is pretty much a pervert and the studend is pretty much a pervert as well, that's it... I'm not kidding, that's it, they had 30 minutes to try to give us something, but they failed.
Enjoyment - 1: I hated the whole 30 minutes of this (to be honest, I skipped most of the sex scenes, because they were boring and they re-used most of the scenes, so you wouldn't see something new, and then it got repeated over and over again... YEAH, the same scene). Rape is probably the thing I most hate in anime in general, especially when the person that was raped starts liking the ones who raped her...
Overall - 1: Unless you like shitty hentai, with rape and ugly characters with ridiculous boobs, I'd say skip this... There are so many good shows out there, don't even invest 30 minutes into this pathetic excuse of a hentai.