Just like all other vampires, she views the humans as nothing more than livestock. She originally has a distaste for Seventh Progenitor Ferid Bathory, who claims to love her, but this develops into a hatred over the next four years and she comes to want him dead. Their fighting and disputes appear somewhat like a divorcing couple's, and they even appear to cling to possession of Mika.
She is very proud like most vampires. When Third Progenitor Lest Karr challenges her position as the ruler of Japan, they have a verbal spat. She claims she never fails, ever. She is tempermental when challenged and does not hesitate to remind her challenger of his/her place. Ferid restrains this trait by blackmailing her.
She likes Mikaela and claims to like Yūichirō as well. She saves Mika's life by turning him into a vampire after Ferid fatally wounds him, even though Mika states he would rather die than become a vampire. When she first tries to convince Mika to drink human blood, he refuses. Understanding his pain, she lets him drink her blood instead for the next four years. She tells him that from now on he can't leave her side and thus he is her dog and loyal servant. Despite this, she is gentle toward him. She hugs Mika when she gets the chance. She turns Mika into a vampire by kissing him and blushes when Mika bites her, which suggests she likes Mika more than as a friend. She turns him into her favorite pet over the next four years, and she appears to summon him to her chambers frequently; their relationship does not appear to be a secret, although she has not confirmed that she is Mika's direct master to the public. She reminds Mika that he is her property, but she also spoils him, going as far as to whisper her true goals in his ear. She even convinces Mika to reclaim Yū to help her with her plans.
She has been dabbling in the "seraph of the end" for reasons only known to her and to Mika. She is deceitful toward the Progenitor Council about her criminal activities.