It was about a girl living in a secluded village, I think she used to live with her grandma or master or some figure like that and that figure passed away. She had a talent for magic I think, but for some reason this fact was hidden from her. I think she was supposed to get married but didn't want to. The village was completely inaccesible to the outside world, but then one day a man (the ML) bathed in the cold spring nearby and she was there so they discovered each other. After that my memory about the show is very hazy, I think she left the village at some point, and there was a war in the world outside.