My view on her is actually quite a bit worse. To me she's only in the game, because DC wanted Erik to have a girlfriend, who of course couldn't be too popular, because else people would start hating. As such his girlfriend couldn't be one of the actual schoolgirls. So she's basically a mix of Eve and Judith without Eve's cuteness and without Judith's boobs.
I just feel that right now nobody seems to care about her even a little - which may, then again, indeed the intended outcome. But yeah, if DC would flesh out the cosplay part of her story a bit more, she may get a little more attention and would be closer to some kind of soul mate...