Sylvia Skyrose, daughter of the Duke of Skyrose, could not stand to let a commoner who can only use rare magic attend the Royal Magic Academy alongside her. “I, Sylvia Skyrose, will be honest with you: there is no place for you in this time-honored Royal Magic Academy! You should leave at once!” She had thought that the words of such a high-ranking noblewoman would convince the commoner to do just that but– “Lady Sylvia, please be my Mistress!” “Mi-Mistress?” “I will do anything for you if you become my mistress.” This is the story of a Duke’s daughter who ends up swayed by a Heroine who wants to be oppressed by her noble and proud Mistress.