Guren (prisoner)

Guren has long, shaggy orange hair and dresses plainly in a white T-shirt and white shorts. Once active, his cursed seal creeps across him like a tangle of vines. Pushed to its second stage it transforms him drastically: wing-like growths sprout from his forearms, a broad flat tail extends behind him, and four horns emerge, one at each side of his forehead and one on each cheek. In that form his eyes turn black with yellowish centres, his face grows jagged, and the skin around his mouth darkens.

Guren is savagely cruel and violent, a man who cannot rein in his hunger for a fight.

During Orochimaru's experiments, Guren was branded with a cursed seal, and he grew strong enough to reach its second stage, though even the first let him massacre a room of prison guards. A single blow from him could crush a man's skull, and the growths of his second state let him leap from great heights and cushion his own landings. When talk of Orochimaru's death set the prisoners rioting, Guren broke loose, entered the first stage of his seal, and cut down guard after guard who tried to subdue him. Escaping outside, he crossed paths with Sasuke Uchiha and his group and was swiftly struck down.