Hyō

is a member of Konohagakure's Anbu faction: Root.

Personality
Like most Root members, he's still loyal to Root's founder Danzō Shimura and is apparently trustworthy enough to be given the task of delivering top-secret information for him.

Abilities
Although Hyō hasn't displayed any techniques, he is able to sneak up on Sai without being noticed until he strikes, implying that his stealth is on a high level. Like all members of Root, Hyō carries a tipless tantō, which he seems to be skilled with. He is very aware of his surroundings and knows when someone is spying on him.

Sasuke and Sai Arc
He infiltrates Sai's homw and pulls his tanto on him. He hands Sai a letter containing info on his real mission. While they are talking Hyo feels a presence hiding outside so he throws a kunai only to find that it was Tora the cat who scrambles off scared. He is introduced when acting as a go-between for Danzō and Sai, reminding the latter about the will and purpose of Root while doing so.