Kizuhoshi is what is known as a summoned, a creature, possibly mystical in origin, that usually resembles a normal Earth creature (though there are exceptions), but possesses human intelligence, as well as the ability to speak. There are a wide variety of different kinds of summoned, such as dogs, snakes, turtles, frogs, spiders, slugs, and even ogres; in the case of Kizuhoshi, she comes from a family of cat-like summoned known as the Shishudan No Hoshi, or the Pride of Hoshi. Kizuhoshi's name is translated as "star scar," meaning that either she was deliberately scarred at birth, or quite conceivably, she was born with the scar to begin with. As a summoned, she is obligated to learn ninja art techniques, or jutsu, so that she could be an asset to any shinobi who would sign a blood contract with the Shishudan No Hoshi; it is known that she knows at least two jutsu, but it is also possible that she knows more.

One of several brothers and sisters from the latest litter to come from the Shishudan No Hoshi, Kizuhoshi was one of the first born, and thus considered one of the most important, in accordance to the rules of the pride. In fact, she is the equivalence to a princess in the Shishudan No Hoshi. Arrogant and pompus, she believes she's above anyone because she is practically royalty in her family, and she has little or no respect for anyone other than herself. But the one person she grew to respect quickly was the woman she had encountered one day while venturing through the Land of Fire; "The Black Widow" Oseiko.

On that day, Kizuhoshi's natural curiosity got the better of her as she followed Oseiko, who quickly discovered the hiding cat-like summoned. Realizing how smart the animal was, Oseiko tried befriending the curious Kizuhoshi, only to find that the feline was quite fickle, distrusting Oseiko from the start. But a dangerous incident was narrowly averted when Oseiko saved Kizuhoshi from a snake-like summoned. And Oseiko's continuing kindness ultimately won the cat-like summoned over. And while Kizuhoshi had not asked Oseiko to sign a blood contract to the Shishudan No Hoshi, she continued to travel with her, the two becoming staunch allies.

Eventually, Kizuhoshi accompanied Oseiko back to her home, and immediately imposed her stubbornness on anyone who wasn't Oseiko, even going so far as to speak in Japanese only simply because she felt English was beneath her. For a while, she even pretended to be a common house cat, talking only to Oseiko as an advisor, a teacher, and as a friend. But that ruse didn't last for long, as she revealed herself on-camera accidentally.

Kizuhoshi continues to accompany Oseiko, often to the ring, and for the forseeable future, she will continue to rub a lot of people the wrong way like the pampered princess she is.

Naruto is tm & (c) Masashi Kishimoto / Aniplex