Semyaza is the leader of the Naphidim, a lesser kind of Ameshas who passed to the Other Side millennia ago and has changed aspect over time. They are renowned as the best spies of the police of Hell, due to their ability to hide their presence, turn invisible and a mastery over the ability to use astral projections to wander the worlds and follow their targets everywhere. Semyaza, being their leader, is one of the most trusted agents of Nergal.