The story is frustrating, but anyway it's three minutes per episode what would you expect. The anticipation does hook you at times.
My ears were deaf to the sound so I can't comment on it. I can only hear the heroine's hentai moans and "dame".
On a porn perspective, for a hentai made for (masochist) women, the scenarios were hot. This is not for people who are sensitive to non-consent which is a recurring theme in hentai.
It overall made me feel repulsed, thus my low rating.
