Iroha Kisaragi (如月 いろは, Kisaragi Iroha) is the actual younger sister of her contracted monk, Jin Kisaragi. She uses a pair of sais in battle. She allows her body to be ripped apart by Hazama in order to deliver a crippling blow. She was then torn into shreds by an angered Hazama along with Jin, who stayed by her side until the end.
- Iroha's surname Kisaragi means "February" (如月).