The most we have seen of the Greater Beast in the animated series so far are flashes of her legs and arms, and a momentary glimpse of her true form behind her servant, Xelloss in the openings of several seasons, but that does not mean nothing is known of her. Zelas resides on Wolf Pack Island, the southern base of the former mazoku barrier, and is probably best known for her servant, Xelloss. Her wise investment rendered him the most powerful mazoku outside of Ruby Eye Shabranigdu's five servants.