Ken Akamatsu
Supporters of regulating simulated pornography in Japan claim to advocate human rights and children's rights such as the "Convention on the Rights of the Child". Opponents such as the also claim to advocate for the rights of children, pointing out the decreasing numbers in sexually motivated crimes are due to simulated materials providing an outlet to those who would otherwise seek material depicting actual children. Arguments made against a ban include manga creator and artist Ken Akamatsu who stated that "There is also no scientific evidence to prove that so-called 'harmful media' increases crime". The definitions of "obscenity", specifically written in law as "arouses or stimulates the viewer's sexual desire", have also been argued as ambiguous.