A duke who married the Mistress in an arranged marriage. A handsome man with refined features and silver-white hair. He is taciturn and apathetic, with little attachment to anything, and feels no romantic love for his wife. He has no interest in the mansion's servants either, recognizing all maids simply as "maids." He handles his work methodically but does not seek interaction with others more than necessary. He rarely shows emotion, making it difficult to discern what he is thinking.

The duchess, married to the Master in an arranged marriage. She feels no love for the Master and is plotting a divorce on grounds of his fault in order to return to high society. Possessing the cunning and tenacity cultivated in high society, she plays the role of an elegant duchess in the mansion but will stop at nothing to achieve her goals. She uses the new maid, you, to set various traps that ensnare the Master.