I'm thinking about having a girl that's in the police academy, whose evil twin was a hellish clone of herself, masquerading as her; though more buxom, and with breasts that can form into hellish mouthes. The character herself is a goody type, though not prudish; more of a stand up for the weak. Not sure if there would be anything like that in the game; Iunno!
The second idea I had is an elf in House Daedalus, an investigative type extremely shy, almost secretive about her own body for past-ly traumatic reasons, it's one of those psychological crutches. <.<;. She'll be a magician, explorer type, likely to join the others in finding the secrets of House.. whatever the magician types are.
Another would be a House Daedalus girl, a secret Futa tomboy farmgirl type, sort of that overly-curious adventuring type, a little too much into hentai. She doesn't want to get her futa-ness around, more specifically, how she picked up the virus.