Board Thread:General Discussion/@comment-28631634-20160602235014/@comment-25936766-20160603013600

No. Vedran has already explained why a Grimm-Person would be paradoxical and impossible. So unless they go the Shonen Jump route and give her abilities that give the established canon the middle finger, she can't have a Semblance.

I think someone elsewhere said she looked more like a dead person than an actually-alive person. Perhaps she's just a Grimm imitating a human, somehow. If so, her "human" form is not her real form.