Miketsu

Miketsu is a Byakko spirit, eighth in rank among his peers, and alongside his brother Ukemochi, the familiar of Izumo Kamiki, having previously served her mother, Tamamo Kamiki, in human form.

When Tamamo was possessed by the Nine-Tailed Fox Spirit, Miketsu joined the fight to subdue the demon but was quickly overpowered. What became of him afterward was unknown until he reappeared alongside Izumo at the start of the series.

More prideful and quick-tempered than his brother, Miketsu is easily provoked into voicing his objections, appearing as a white fox with a red diamond marking and mustache-like patterns on his muzzle, dressed in a red apron bearing his name, and wielding a sword in battle.