Oh, I like that idea a lot! TBH, it reminds me a bit of Fate Zero on how the Masters dream of their Servants life before dead. So, we could make it so that, while they walk and travel to the next city, we could only write up the night scenes and what SHOULD be in their dreams, though the other one will be the actual one seeing that. Kind of, I write what Noboyuki's dream would be like, but it is Rena who would see it, and vice versa. I also think the dreams shouldn't be like, complete at first. Just bits and bites they can't make out at first. Upon arriving to the next town, though, they start to piece it together. I dunno if you get what I mean here, just tell me and I'll try to simplify it more xD 

Anyhow, I can only make OOC chat for now. The actual IC post will have to wait until tomorrow.