What if actress chick is the blue demon?

You know what I'm kinda hoping considering the current development of the mc and that actress chick? That later we find out that she's actually the blue demon from his past life that only regained her memories from her time as the blue demon much later than the mc and, for now, doesn't really remember anything.
Maybe it's me, but I've always thought the 2 of them looked a bit alike. It could be possible that the reason the mc never realized it is that she's much younger now (just like him) and he might've thought she was a guy all along (since in a ancient setting would be much better to pretend to be a guy for safety reasons which would be easy for an actress to do).
In the end that's just a theory of mine, but imagine how exciting that would be??? She having to face her own feelings for him after remembering all the shit they've been through, while the 2 of them having to try to understand each other after the betrayal that occurred. Ahhh just thinking about the super fun drama that would happen makes me so excited ε=ε=(ノ≧∇≦)ノ