Kiyoka Musumi (六角 清香 Musumi Kiyoka?) is a second-year middle school student of Heijou Institute. Her okatana is Renge Fudou Teruhiro.

Kiyoka appears as a girl with a timid personality. She is the daughter of a noble family who owns a kendo dojo and a girl seen to have a promising future because of her ingenius skills in swordsmanship. However, she has been showing a dislike in fighting from the start.

Since the duty of a Toji requires experience in actual combat, Kiyoka has been afraid of living as a Toji. Her hobbies include reading, especially popular romance novels and magazines.