- She is Ibuki's younger sister and one of Yuki's aunts on his mother's side. She's betrothed to Senshirou. She hates most men, with the exception of Yuki and Senshirou.
- She is one of the Giou Clan "Masters" who teach the Zweilts and others martial arts and similar skills. Her apprentice is Shinmei Masamune, who is a necromancer-in-training.
- She is quite the doting aunt towards Yuki which is remarked upon quite a few times. Before even introducing herself she first tackles a confused Yuki into a hug and insists on kissing him when they first meet.