Frill, a young orphan surviving alone on lawless Space Station M-75 after her parents' deaths, conceals her identity as a girl to evade station gangs. Her half-human, half-Shamoan heritage provides unique physiological traits. When she encounters mission-driven Advancer Tina Owen, Frill joins her crew to explore the perilous planet Omega-13. During this journey, Frill’s latent psychic abilities—like unanticipated telepathy—surface, revealing she can perceive others’ thoughts without warning.

Under extreme stress or exposure to lethal elements such as intense heat, Frill’s Shamoan genetics trigger a physical metamorphosis. This transformation enhances her strength and speed dramatically, grants immunity to fatal hazards, and shifts her skin to a distinct blue hue. Her bond with Tina evolves into a protective, maternal dynamic defined by mutual reliance, guiding Frill’s decisions against Omega-13’s threats. Her concealed hybrid nature and emerging powers position her as essential to the crew’s survival.