I will be speaking for the Innocence cast (subsultive forgiatura fideliter ruinedhiswish immadragon ashihara) since they're all the same thing! Avatars. That is, former gods reborn as humans who have special powers granted to them due to past lives.

What I'm saying is that they ain't exactly human. They'd be able to see her true form faintly. Faint red markings at most. Lighter, smudgy, whatever you want.