About the new game, and in wether new yukkuri will be popular or not. But I suppose I can take a look at the fetishes too, while I'm at it.
As a side note, whenever I read "Urumi" I think of GTO, but what can you do.
They likely would have a very brief period of having art depicted of them (yukkuri version) but likely wont last in popularity. I suspect urumi has staying potential if only because she can be depicted to gore stuff >_>