Constellation:

Character:

Yuki-Onna is Rikuo's trusted attendant and part of Rikuo's new "Hyakki Yako" who follows him to school disguised as Tsurara Oikawa, a normal schoolgirl. She is affectionate towards Rikuo and even gets jealous when other girls pay him attention. This is also reinforced by the fact that other characters express how bad a situation would be come if Tsurara were to see what other female characters did to Rikuo.

Source from Wikipeida