K (ケー, Kē) is a chūnin of Kumogakure and was partnered with J.
K has short, spiky brown hair and black eyes. He wears the standard uniform of the Kumogakure shinobi including flak jacket, a white forehead protector and shin guards.
K and J both notice a huge explosion at Valley of Clouds and Lightning and they saw Killer B in his full eight-tailed transformation. After stating that the Fourth Raikage had forbade him from transforming into the Eight-Tails. As Sasuke Uchiha defeated and captured Killer B, he stated that the Raikage won't be pleased when he found out about his brother.
As J went to trail Taka, his partner went to inform the Raikage of Killer B's capture. When J did not send him any messages for a while, K headed back to the Raikage to tell him J was either killed or captured.
Five Kage Summit
K was seen with other Kumogakure shinobi when the Raikage and the others returned to Kumo after B's fight with Kisame.
- As is the case with several Kumogakure ninja, "Kē" is the Japanese pronunciation of the letter "K".