Hisame, a missing-nin from Amegakure, abandoned her village to aid Suien in stealing Takigakure’s Hero Water, directly opposing Team 7 and Shibuki, the village’s leader, during their defense. She is a tall, slim kunoichi with fair skin, short light brown spiky hair, and pupil-less black irises. Her attire combines a pink tube top edged in dark red, a light blue open shirt, navy blue pants, and a white hairband. A shuriken holster adorns her right leg, complemented by azure earrings and red lipstick.

Specializing in Water and Lightning Release, she manipulates water whips to ensnare foes, electrifying them to paralyze targets. The novel adaptation expands her arsenal, depicting water-forged weapons for varied combat ranges, emphasizing tactical adaptability.

In the OVA, she partners with Murasame to ambush Sasuke Uchiha as Naruto chases Shibuki. Defeated by Shibuki’s Hero Water-enhanced strength, her fate remains ambiguous in the anime. The novel, however, confirms her survival and subsequent capture by Kakashi Hatake.

Renowned as one of Amegakure’s sharpest kunoichi before defecting, her alliance with Suien centers on seizing the Hero Water, though her deeper motives remain undisclosed. Her name, meaning "hail" or "chilly rain," mirrors her elemental prowess. Expanded media, including a light novel, introduces unadapted combat maneuvers and interactions, detailing clashes with Kakashi interrupted by Konohamaru. These additions contextualize her survival and the aftermath of the Hero Water conflict.