Erika is driven by sounds. Her massive ears pick up the quietest whispers and make loudspeakers weapons against her. She wears combat-grade noise-damping earmuffs that double as her music player and communicator, keeping the pitched world outside until she chooses to let it in. She scouts urban and uncharted zones alike with acrobatic speed thanks to her implants, and her radiation and toxin-resistant body lets her delve places most can't even look at.

After leaving her cradle world for the stars, corporate debt trapped her in exploration work as an underpaid gofer. At her lowest, she joined fugitives Lear and Tess, choosing escape over suicide.