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Iruka Kujouin (九条院 入鹿, Kujōin Iruka) is the fourth yōkai hunter to attack Sakurashinmachi. She is a human who wielded the hanyou blade known as the Onigoroshi and master of the Kujouin Aijutusu style of swordsmanship.
Iruka is a girl of near the same height of Hime Yarizakura. She has light skin, yellows eyes and long dark hair extending to her waist.
She wears two hair clips on left and right front of her head, the one on her right having a large dolphin shape attached.
She often wears her school swimsuit, a white one-piece and a unbuttoned short sleeved shirt tied with a ribbon near her neck along with a dark coloured sweater tied by the sleeves at her waist. She wears a pair of black stockings and black heels.
Iruka's casual clothes consists of a large sweater extending past her waist with the collar of her white shirt tied with a ribbon visible. She wears a short skirt and black stockings, and shoes.
Iruka was raised in a rich family, secluded from the outside world. She has had the sword Doujigiri Yasutsuna with her ever since she was a child and would take it with her everywhere.
Expert Swordsman: She is shown to be a a expert swordsman.
- Iruka makes a brief cameo during the credit sequence of the final episode of Hana no Uta along with members of Police force, Rokkaku and Murasaki Iyo.
- Iruka means dolphin in Japanese.