Etzam Nar is a Raven, a mercenary that pilots a mech. She is Rank One in the Arena, which means she's the best. Her mech, Proto Exus, is a middleweight bipedal unit equipped with inside ECM makers, a machine gun on the right arm, an energy-based machine gun on the left arm, a dual missile launcher and relation missile extensions. Her handling of the mech meshes well with the unit's setup. 
But who exactly is Etzam Nar? What does she look like? What's her name? The answers are known only to her.