[xienze]

> All sexual material sold legally in Japan is censored by law.

So there's a little black bar where the tentacle is penetrating the woman?

[mangahonthrowwy]

I'm not versed enough in the law to answer the spirit of that question, but the law has chilling effects greater than the letter of it. Adult material is kept in a separate section, usually with the books sealed in opaque packaging, and 7-eleven in Japan has removed it's adult section entirely.