Nagare

is a member of the Watari ninja alongside Hokushin and is the servant of Oki. He eventually fought against Kakashi Hatake. By taking on the properties of stone, he can use the Assimilated Rock Blizzard to use stones as projectiles, and the Assimilated Rock Tank to expand using stone and crush the opponent while rolling with great force. He could also control rock powder similarly to Gaara's sand, engulfing the opponent with rock powder by using Assimilated Sand Binding Coffin and crushing them with Assimilated Sand Waterfall Funeral. Kakashi faces this tough opponent but knows his weakness, the real body is hiding somewhere else. With the help of his Sharingan, he is able to see the chakra in a rock and Kakashi uses Lightning Blade to destroy it. After a fierce battle, he is defeated but not killed by Kakashi.