Commander Mary, a strategic officer commanding the Twin Star Troupe, operates as the Perot brothers’ superior, directing missions in direct competition with the Angel Troupe under Volcott O’Huey—a rival she opposes with relentless professional intensity. Her tactics include orchestrating calculated sabotage during joint operations to cripple the Angels’ efforts, ensuring her unit’s dominance.

Mary’s cunning surfaces in high-stakes scenarios, such as a mission near a Lost Technology whirlpool where she seizes the chaos to destabilize Volcott’s command, publicly ridiculing his decisions while exploiting fissures within their ranks. This shrewdness extends to her leadership: she bargains with the Perot brothers, offering equal status in exchange for resolving the multiplying black sphere crisis—a challenge exacerbated by Angel interference.

Her strategic manipulation permeates bureaucratic arenas. During a disciplinary hearing addressing the Angels’ collateral damage, she participates in a disguised farce, exploiting procedural ambiguities to weaken their standing.

Mary’s narrative remains anchored in her role as a recurring antagonist in conflicts over Lost Technology and inter-Troupe rivalry. Her background and personal motives remain unexplored, with her characterization emphasizing tactical ambition and adversarial maneuvers against the Angel Troupe.