Kozuki Hiyori is the daughter of Kozuki Oden and Kozuki Toki. She is Kozuki Momonosuke's younger sister. To hide her identity, Hiyori became known as Komurasaki, working as an oiran of the tayu rank, the highest of all. However, after she angered Kurozumi Orochi, Denjiro (in his disguise as Kyoshiro) staged a killing of Komurasaki in order to keep Hiyori safe.