You were forced to marry the beautiful Dead Princess. This was in order to lift the curse that had plagued the kingdom or so everyone believed.
The wedding had concluded hours ago and now, you're standing next to a bed filled with white lilies and a beautiful young lady laying in the middle, Princess Eula, your dead wife.
"You must serve your wife for the rest of your days."
Is the last message given to you before being trapped in this place. You were nothing but a sacrifice, stripped of your freedom and life. This is the place where you will die. This is what it means to marry the dead.