Hyō

is a member of Konoha's ANBU and a former member of the, now disbanded, ANBU "Root". As most Root ANBU, he's still loyal to Root's founder Danzō and is apparently trustworthy enough to be given the task of delivering top-secret information for him.

Hyō visited his junior Sai just before the latter went on a top-secret mission for Root. Seeing that Sai still held on to a picture book from his past, Hyō reminded his junior about the will and purpose of Root.