In an effort to reduce the likelihood of sexual crimes in Japan, a prestigious all-male school relieves its students using the service of young girls. The reasons these girls are thrown into this unusual career are many, ranging from debt to punishment for crime. Treated as nothing more than government-sponsored commodities, they are stripped of their clothing and identified only by their assigned number.
Nakagawa rarely pays much attention to anyone at school, but that changes when he enters a relationship with the girl known simply as 'Number 3'. Since personal interactions between the students and the girls are forbidden, the two decide to use the school rooftop as their private meeting place, spending their days together in secret.
The plot actually tries to some extent in this hentai, with our lead male protagonist falls in love with the lead female protagonist, and the anime actually spends some time developing their relationship over the two episodes. It's not exactly the most deep relationship and it doesn't really lead anywhere, but the fact that it tries to do something with it's plot is at least admirable. It could have easily just been sex scene after scene, which still would have ended up as a good hentai if it went in that direction, but I guess it's better than a plot that just wastes your time and the run time that could have easily been dedicated to more sex scenes.
Overall, the animation is pretty good and I enjoyed the sex scenes throughout the hentai. But with a premise like this, I wish the hentai would have focused more on the different female characters in the series so that there was some more variety. A plot is nice and everything, but the plot here is not good enough for me to actually invest myself into, it just makes me wish that the studio had dedicated their time more into the sex scenes. Seeing some of the other female characters who were in a similar situation would have given the hentai some visual variety as well as some variety in personalities. But then again it is based on a manga, so I imagine that the studio probably didn't want to deviate much from the source material.
If you're not into the romance aspect or the lead girl, you're probably going to skip this one, but I know that there are a few people out there who would probably get something out of this one. Recommended.
