User blog comment:B214/Volume 17 spoilers./@comment-187.209.0.247-20140306224029/@comment-187.209.0.247-20140307003008

mmm....i do not know, in the past, Grayfia was the princess of the House Lucifuge, "The most loyal family to the Original Maou", but now she is a Maid and the servant queen of the Sirzechs, BUT also his wife, so is difficult to imagine her feelings, Is like a princess who was obligated to be a Maid for the rules of the Underworld to love her boyfriend. AND it seems that the desire of Euclid is to take his sister with him and give her the role of pincess again.