The Shadows of Sound (Naruto: The New Age R3)

The Shadows of Sound are two mysterious figures in black robes that appear alongside Orochimaru during the Double Crossed arc. They appear to be Sound ninja, and their actual features are never seen. The duo were responsible for Dosu's death, as well as defeating Keisuke Okura two consecutive times. They are later revealed to be Korosu Nakamura and Dosu Kinuta, who have been training alongside Orochimaru for several years, having left advanced Shadow Clones (It is unknown whether the clones were shadow, Sound Ninja hired to act as the duo, or reincarnated corpses made to look similar, as the method was never officially mentioned) in their place. Their black robes cover their entire bodies, and if their hoods were to come down, crudely forged metal masks would cover their faces underneath.