Help me find

It a story in read few months back but forgot the name.. story is that the FL is somebody who can see darkness or maybe ghost .. she married a general officer and whenever she's in the presence of the general she saw light instead of evil.. the general did not care for her wife. There was a ghost who was after FL to kill her but later fell in love with her.. I remember the last episode was something about FL leaving the general to live with the ghost and general later regretted everything. It was historic korean surrounding, I guess .