Kōza Kubisaki once led the Land of Neck. Cornered by an enemy army half a century before the series begins, he summoned the shape-shifting chameleon Shiromari as a last gamble, then died before he could dismiss it, leaving the beast to prey on wanderers for decades.
Kōza went about in simple samurai armour topped by a tall helmet, a sword resting at his hip. He had grey-brown hair, a moustache, and pale grey eyes.
His signature skill was the summoning technique, which called forth Shiromari, an enormous chameleon able to mimic nearly any shape and swallow whoever it lured close. The blade at his side suggests he was also trained in kenjutsu.

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Fifty years before the story opens, Kōza and his forces were hemmed in by a rival army that cut down most of his men. Resigned to dying by nightfall, he summoned Shiromari as a final weapon to take his enemies with him, but he fell before he could release the creature. Left unbound, Shiromari took on the shape of the ruined castle and devoured anyone who wandered inside. The steady stream of disappearances eventually drew Konohagakure's notice, and when Naruto Uzumaki, Hinata Hyūga, and Kiba Inuzuka arrived to investigate, Kōza returned as a spirit to lead them to the summoning contract so that they could free Shiromari from its castle form.
The chameleon in the Land of Neck is Shiromari, an enormous shape-shifting creature that Kōza Kubisaki summoned as a last resort before he died, after which it took the form of a ruined castle and preyed on wanderers for decades.
Kōza Kubisaki was the leader of the Land of Neck who died in battle fifty years before the start of the series.
Cornered by a rival army that had cut down most of his men and resigned to dying by nightfall, Kōza summoned Shiromari as a final weapon to take his enemies with him, but he fell before he could release the creature.
Left unbound, Shiromari took on the shape of the ruined castle and devoured anyone who wandered inside, and the steady stream of disappearances eventually drew Konohagakure's notice.
When Naruto Uzumaki, Hinata Hyūga, and Kiba Inuzuka arrive to investigate, Kōza returns as a spirit to lead them to the summoning contract so that they can free Shiromari from its castle form.
Looking for more on Kōza Kubisaki? The Naruto Wiki on Fandom has a dedicated page with community notes.
View on FandomThis content is original writing by Daddy Jim Headquarters based on the Naruto anime series, manga, and official materials. Episode and chapter references are cited where applicable.
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