In this case there are several crimes, but in the other one mentioned about a korean there is nothing, only possession of generated content arguing that there is high realism (someone could say the same even of a sketch). To imprison for acts that have neither victims nor any harm either directly or indirectly, is more aberrant than possessing that.
PS: I'm just talking about legality and rights, I know it's controversial and I'm sure someone has something to argue against it, but if you're going to accuse me of being a pedo just get lost you moron.