Kirika Uno (ウノ/on the right) is another female protagonist who is also under Hisui's harem. Unlike Mei and Rushella, she does not get much of Hisui's attention because she is his upperclassman, therefore she has to behave herself, plus she is not as assertive as his classmates. She is also the Student Council Vice-president of Seidou Academy. She does not do a good job among her peers in the council as portrayed in volume 4 because students walk out on her or simply agree with her due to lack of patience. She is disliked or just avoided for her attitude among people, but she does care a lot about them, and she even cares more about the school. This is why she can be hard to deal with. In appearance, she has purple colored hair, a slim body that would attract many men, and a well sized bust, not one as big as Rushella's or Mei's, though. But she is not approached by men or given much attention because of her school reputation.
Kirika is a witch. Because of this fact, it is assumed and confirmed she is of European origin, but she may be half Japanese because of her surname. It is said that a witch sells her sould to the devil and also her chastity, but Kirika denies this in Volume 3. She also mentions that no witch ever meets the devil in person. Due to her powers as a witch, she also has the abilities to make her appearance change, so she may have used magic in order to look more beautiful. This is not confirmed, however, so it is assumed that this is her natural look.
Kirika is the grandaughter of Welfica Uno, one of the few people who met Miraluka a while ago. This is unknown even to Kirika, but Hisui learns of this first. Kirika does not have much company due to having an importance aura around her underclassmen, and she does not get along well with many of the others in her grade, probably due to having her differences with people in the Student Council.
She is introduced in Volume 2. She is also the only character to ever go from antagonist to protagonist. This change is because of Hisui allowing her to live, even after all the harm she had caused him. Because of this, she develops feelings for him. But as mentioned, she does not act on them.