Nangō

is a ninja who was helping Akaboshi to collect the Tsuchigumo clan's kinjutsu. He does not talk a lot and is shown to be a keen observer.

Six-Tailed Beast arc
Akaboshi, Nangō, Chūshin, and Benten make for Mount Katsunagi in search of the Tsuchigumo clan's kinjutsu. They manage to destroy the barrier around the mountain and make their way up. They could not find the jutsu anywhere and ran into Tonbee, whom the group defeated quickly. They discover that Hotaru has the jutsu and they begin searching for her.

Trivia

 * Nangō can mean, or.