Tsurara Oikawa

Tsurara Oikawa is a Yuki Onna yokai and Rikuo's trusted attendant. She follows him to school in a human guise and, at the Nura House, sometimes handles cooking—usually serving food that is chilled or cold. Fiercely loyal to Rikuo, she will do anything for him.

Tsurara loves Rikuo deeply, though the nature of that love is left unclear, and she becomes visibly jealous when he mentions Kana.