Dian is a maid working for the Marquis of Lowell. To help her lady escape from an unwanted marriage, Dian sends her out the country and assumes her identity, going to the castle of Margrave Evenhart in her stead. The Evenhart family, famous for guarding the North for generations, but never leaving their territory, is a subject of great mystery to the outside world. Will Dian’s identity be discovered? What romantic story will unfold in these days of cohabitation?