Convenience store (combini) magazine racks are one place which are highly visible and easily scrutinised.  Some publishers of well-known "pantie mags" - commonly found on such racks - are saying they will now have to publish tamer front covers, or else they won't be able to stay within the law ( hoh hoh ).

There is another market called DouJin, or self-publised works. Loads of original and fan fiction publications here, in manga form mostly.  It is not difficult to find internet-based anime versions as well.  Many doujin works contain utterly bizarre and explicit content.

If the intention is to protect and to provide moral guidance to youth, as is the government's stated intent, then it is no surprise that this form of regulation has kicked in.

Eternal Hobbyist