The characters are good, but also a bit average. The story is a pure straight-forward Harem type, with a few twists and kinks due to the characters (quasi-incest, student-teacher, threesomes, cos-play, and other kinks all feature).
They aren't any really extreme hardcore or fetish scenes, and the characters remain consistently portrayed... as all having an inner core which is "activated" by the protagonist to lead them into erotic acts. In that respect, it is a bit repetitive, but there is enough individual variety that, if you look at things more superficially, you would hardly notice.
The Art avoided the usual pitfalls of exaggerating body parts, and although i watched the censored version, I could tell that beneath the mosiac was a great amount of detail.
Despite me not being impressed with some aspects, I only mention these things so you can decide whether to spend your time/money here or elsewhere... there is so much Hentai available, why choose this one?
Well, this is a good "vanilla" Hentai... may not be exotic, but it sure is something you will enjoy watching at least once. It does its job in keeping you interested, without challenging the intellect or giving many surprises. So if you are in the mode for vanilla, stick to this. If not, they are always things like Bible Black ;)
