Well this is not a crap hentai anime, it just unique. how should I put it, it just like you peeking people do that thing with a drone or something like that. but don't hope for a serious hentai scene. the story it self just as the synopsis tell you, it's three young girl try to make some documentary film about sexual activity or something like that but most of the scene will only show you about how a girl pee. they pee in the school, train, park, etc. I also agree with the previous reviewer about this anime, it seem's they really made it witha low budget, so don't hope for anime with a lot of movement there.

I can't recommend you to watch this, but if you want to make hentai anime with a low budget this anime would be a good reference I think.