The art looks nice, the sound is great and (as is important for a hentai) it's sex scenes are good. BUT! I thought this was frankly mediocre overall, let's look at the story first!basically girls get a disease which makes them horny, and eventually die. so I won't explain it here but while the concept was fairly cool, it was fairly lacking overall. Just because it's hentai does not excuse a bad story. What's wrong with it? While it does have good sex scenes, it's almost nothing but sex scenes.Why is this a problem? For me to really enjoy a hentai, it must be enjoyable on botha sexual and non-sexual level. This isn't. Also, it means their is no break, which is a bad sign in hentai. It's more than just porn, you know. The characters: They were fairly boring. I just didn't it enjoy that much overall.