In the interstellar era, Luther, the steward of the Vallen clan, assassinated Elder Augustus to cover up his smuggling crimes and framed Logan, an ace non-commissioned officer, for the murder. Logan’s mech was melted down, his military honors stripped away, and he was exiled to Aira Mining Star, a planet infested with ethereal aberrants, where his left arm was crippled in a brutal attack by one of the creatures. Logan fought to survive on the perilous mining world. By repeatedly hunting and eliminating aberrants, he earned approval for a retrial and returned to Nova Prime. Upon his homecoming, Logan publicly exposed Luther’s plot, yet his evidence was insufficient. He endured relentless suppression and fresh frame-ups orchestrated by Luther and was forcibly assigned to a suicide vanguard unit. Censor Serra secretly lent Logan assistance, while Molly gradually saw through her family’s web of lies. After many twists of fate, Elder Augustus, who had been gravely wounded and comatose, regained consciousness. Together with the complete physical evidence presented by the Censorate, this sealed Luther’s downfall. Cornered, Luther fought back furiously in his mech, only to be defeated by Logan at great personal cost. Logan cleared his name entirely and rejected the power and compensation offered by the Vallen clan. In the end, fitted with a brand-new military-grade prosthetic limb, he boarded a battleship with Serra and set course for deep space to face the surging tide of mass aberrants.