A tough, caustic, skilled, no-nonsense girl who is extremely against Ushio being one of the four Chosen of the Beast Spear because she believes him to be undisciplined and reckless, far below those who trained all their lives in the Kouhamei sect in order to be selected to use the Beast Spear.

When she gets the chance to wield the Spear, it rejects her, returning instead to Ushio. Hinowa is still reluctant to acknowledge Ushio as the true bearer of the Spear, but she ends up helping him from time to time anyway. Hinowa channels her power through a pair of combs, and is able to cast barriers.
(Source: Wikipedia)