The augmented mercenary C4-621 is smuggled onto Rubicon with the assistance of its boss, Handler Walter. Upon landing on Rubicon, C4-621 steals the callsign of a deceased mercenary, becoming "Raven". With the new identity, Raven inserts itself into the war raging on Rubicon's surface between the megacorporations Balam Industries and Arquebus Corp, the anti-corporation Rubicon Liberation Front (RLF), and the Planetary Closure Administration (PCA), who are all racing to find or protect the Coral.