Girl escapes to see the outside world for the first [and last] time just before she has to marry a man she hates, meets a tengu that seems willing to help and protect her at any cost.
I reaaaally disliked Mozu's behaviour, leaving him multiple times, pretty much making him feel like like she didn't really care so much about him, forcing him to let her go and have to wait for him a few centuries more until he MAYBE meets her again.