Yeah they pretty much are here as well. Though I'm not so sure this specific example would cause that many problems here as opposed to actual porn. Our law specifies not only characters who are underage, but those who appear underage even if they technically are not. I've also read someone pointing out those made of words and thoughts (ie: slash fiction are probably technically illegal here too.
In fact the recent proposal for the new gaming classification guidelines state:
Descriptions or depictions of child sexual abuse or any other exploitative or offensive
descriptions or depictions involving a person who is, or appears to be, a child under 18 years.
As vague as that is I'm still not so sure this title would have a problem coming out here.