A 50-year-old elite contractor known as "Quickblade." Bound by a rigid warrior ethos called the Code, she acts as a "reaper" enforcing tasks for the Starhome Exploration Group. Her life is upended when her long-time client unexpectedly resigns, leaving her a "ronin" (masterless) and forcing her to manage a dangerous final assignment.

An ambitious young atier with deckhand origins who desperately seeks to rise through the corporate ranks. He values social acumen, luxury goods, and obedience over traditional combat skills. His deep insecurities drive him to prove his worth as a malleable instrument for his powerful client.

A legendary former atier known as "Strikebreaker" who walked away from the contractor life to live as a "badgeless" ronin. He survives in the margins of society, possessing a spartan apartment and rejecting the corporate violence of his past. He suffers from a terminal diagnosis of Gray's Waste and a perfect memory that forces him to remember those he harmed.

The powerful director of Southern Continent Gas Production and leader of the terraformist faction. He demands absolute loyalty from his subordinates and ruthlessly eliminates any perceived liabilities. He possesses immense ambition, seeking to secure his legacy on Aquilo regardless of the human cost.

The 106-year-old director of Satellite Operations and a "second stager" whose consciousness is housed in a synthetic body. She is immensely wealthy, politically cunning, and represents the detached corporate elite of Aquilo. She uses legal loopholes to force Isako into a high-stakes espionage assignment against a political rival.

A highly capable enforcer fiercely dedicated to Sandbar Uchi's protection. Following a catastrophic bombing, she undergoes an extreme technological transition into a synthetic body. She navigates the complex, isolating reality of her new existence while enforcing her client's aggressive corporate strategies.

The director of the Astrocommunications division and a proponent of the "reunionist" cause, which advocates for reconnecting with Earth. He relies heavily on Isako as his chief strategist and bodyguard but becomes increasingly despondent over his division's failures.

A high-ranking Partner at the Agency that manages contractors. She once mentored Isako and understands the treacherous political currents of the Company. She acts as an authority figure who monitors investigations while protecting the Agency's overarching power structure.

An infamous Agency Partner known as the "Ronin Killer." He serves as a lethal enforcer for the Company, tasked with terminating rogue contractors and maintaining strict compliance among the badgeless populations.

The highly influential atier for Tide Sullivan, known as the "Puppetmaster." He is deeply embedded in the political machinations of the Board and attempts to steer other contractors away from dangerous investigations through bribes and subtle threats.

The sole survivor of the Field 93 disaster and a radicalized former gas-field worker. Now operating as an "extinctionist" leader within the United Freelancers, he seeks to build an army to dismantle the Company's terraforming agenda.

A younger contractor and one of Isako's former apprentices. She currently holds the prestigious position of atier to Director Savannah Minto, placing her in direct professional competition with her former mentor.

Isako's 19-year-old daughter. She is a student whose life is largely insulated from the violent corporate realities her mother faces. Her financial security is a major factor in Isako's professional decisions.

An aging laborer for the Astrocommunications division. When he is dismissed, he stoically accepts a voluntary resignation package to secure a financial future for his daughter, highlighting the brutal economic realities of Aquilo.

A badgeless freelancer who operates as an illicit drug dealer. He provides information and narcotics to corporate contractors, maintaining dangerous connections to the city's underworld.

A skilled subcontractor and information broker. He provides crucial digital research and hacking services to atiers, though he is cautious enough to abandon assignments when they become too politically dangerous.

The director of NorCon GasPro and a highly influential figure on the Company's Board. He supports the terraformist agenda but calculates his political alliances carefully based on public perception and risk.

A young clerical worker whose low-level security clearance makes her an unwitting target for corporate espionage.

The subdirector of Risk Management for SoCon GasPro. He provides pragmatic, often unwelcome advice about public relations and corporate liability in the wake of industrial disasters.

The subdirector of Analytics for SoCon GasPro. His sudden firing turns him into a disgruntled liability who threatens to expose division secrets to the press.

A low-level Astrocom laborer who refuses to accept his dismissal quietly. Knowing his grim fate, he desperately attacks an elite contractor in a doomed bid for survival.

Uchi's ex-wife. A wealthy socialite whose custom-commissioned synthetic body becomes a point of legal and personal contention following their divorce.

An Agency Partner who manages the immense bureaucracy of the Starhome Exploration Group's contractors.

A loyal bodyguard for Sandbar Uchi who handles physical threats and removals on the director's behalf before suffering a fatal incident.