Yuki

A Kudagitsune who served Kuga Haruka, and the first yokai summoned by him after his reincarnation. Its loyalty to its master remains unchanged, becoming Seika's faithful servant. Since being summoned in this life, it hides in Seika's hair because it dislikes returning to its phase. When Seika becomes emotional, it tries to calm him down, but when it can't stop him, it respects Seika's decisions.

Previously, it was given by a former master who was a female Iizuna user commanding many Kudagitsune, because its rare white appearance and good lineage suggested it had great power. However, it cannot use any of the original abilities of a Kudagitsune, such as possession or supernatural powers, so Haruka gave it the ability to transform into a human to serve as a subordinate. In its previous life, it appeared as a woman of a charming age, but in this life, it has become a girl about the same age as Seika.