Salome emerges as a recurring antagonist, initially operating under the primary adversary Black Trader. Her appearance is defined by a distinctive gothic lolita aesthetic, featuring blonde hair and elaborate attire that often includes a headdress, gloves, and boots, projecting an aristocratic demeanor.

She deploys specially constructed giant robots as her primary method of combat during confrontations. Alexander, her masochistic servant deeply infatuated with her, consistently accompanies her. Salome accepts his presence and assistance on missions, displaying neither marked gratitude nor abuse towards his unwavering devotion.

Her arc begins as one of the earliest foes confronting the Twin Angels, tasked by Black Trader to steal the Seven Amulets. During a mission targeting an amulet adorning a statue within a bathhouse, she battled Kurumi (White Angel). Though initially overpowering Kurumi, the intervention of Haruka (Red Angel) and Aoi (Blue Angel) forced Salome into a hasty retreat alongside Alexander. They detonated an explosion to cover their escape but failed to secure the targeted amulet.

Her tenure under Black Trader concluded when he dismissed her and exiled her to the South Pole, removing her from her position as a direct operative. This exile ended her primary antagonistic role within the core conflict surrounding the amulets.