While I don't pretend to be an expert on Anime or Manga, there are
some themes that seem to endlessly recur: A sweet young thing in schoolgirl
dress is corrupted. Usually there are scenes of lesbianism, bondage
and rape. The men are given scant attention, unless they are some kind
of multi-phallic monster or given to animal/fantasy characteristics.
Sometimes the women will be fantastically endowed, with the usual saucer
eyes and breasts larger than their head. There is a lot of fluid depicted
and explosive art and lettering to signify climax. Interestingly, genitalia
is rarely displayed. Whether this is convention or post-war censorship,
I don't know. While the stylized graphics can be quite beautiful, the
subject matter usually makes me cringe. It is my understanding that
these graphic books, sometimes hundreds of pages long, are read quite
publically in Japan without shame. Strange...