Tenzō (テンゾウ, Tenzō) was a member of the Iburi clan and the younger brother of Yukimi.
Tenzō was born into the Iburi clan which was able to transform into smoke. However, their own ability was the biggest threat to the clan as they were unable to fully control it. Due to the danger wind posed to them, they were forced to live in caves. Nevertheless, Tenzō and his older sister Yukimi had to witness many clan members disappear in agony right under their eyes while they were unable to help them.
One day a shinobi from Konohagakure, the Sannin Orochimaru, visited the cave and promised to save the clan by providing them with his Cursed Seal, which helped temporarily. To improve the control of the clan's ability, he said that he needed a young member of the clan to act as a test subject for his research. Tenzō was chosen to go with Orochimaru and eventually met his end in one of the several research tanks in which Orochimaru was testing various experiments.
Tenzō was a small boy with short brown hair and dark eyes. He wore a blue tank-top shirt and pants.
Like the rest of his clan, Tenzō was able to transform into smoke. When being younger, the ability manifests itself much greater. It was for that circumstance that Tenzō was chosen by Orochimaru to be his test object.