Japan is trying to pass a new regulation that would severely restrict how "nonexistant minors" could be depicted in Manga and Anime. Mostly, the regulation is aiming to curtail the sexual or even sexually suggestive depiction of characters that 'could' be seen as being minors, but this is going to be very wide open to interpretation.
More information can be found here.
There's also an online petition available to sign - 100.000 are needed.
You can sign it here.
I put up two screens where you can see what you need to do: