Tsurara Oikawa (及川 氷麗, Oikawa Tsurara), often called Yuki Onna (雪女; Literally meaning "Snow Woman"), is Rikuo's trusted attendant and part of his new "Hyakki Yakō" who follows him to school under a human guise known as Tsurara Oikawa. Around the Nura House, she sometimes acts as a cook - making delicious but usually chilled or cold food.