Marine Admirals like Ryokugyu, Fujitora, Kizaru, Aokiji, Sakazuki ... At the same time, he also holds great control over two types of Haki, those being Armament and Observation.

One Piece characters who are able to use Observation Haki can perceive the presence, emotions, and overall strength of other living beings, as well as predict their intentions and possible attacks.