I am not entirely certain. It would be kind of cool to do a mixed media thing, though.

A girl is going through her life as a teenager, dealing with her every day problems and having strange dreams where she is a priestess who is dealing with the problem of being kidnapped and kept sedated so they can use her in a nefarious plot who dreams that she is a teenage girl. Both wonder what the dreams mean.

Girl - About fifteen years old, wants her independence but she is timid.
Priestess - A woman in her thirties, highly skilled but kept helpless.

One universe is a world like our own. It happens in the suburbs and is generally a normal neighbourhood with normal every day occurances.

In the fantasy world, it's a human dominated fantasy world with knights, magic and a nefarious plan to summon a god to use to take over the world.

I was looking over an old fantasy story and I really liked the priestess character in it. For some reason, she turned into another girl's daydream. After that, the girl turned into her daydream. It then turned into this idea.

There would be a lot of parallels between the stories too. Because that's fun.