Ren Kisaragi survives by scavenging dead stars. When a forbidden fragment fuses with his right hand, he becomes a target of the Astral Dominion - and discovers that the lights above his city hide a system built on stolen freedom. With a streetwise friend, a secretive courier and a disgraced soldier, Ren must outthink hunters, expose buried experiments and decide what power is worth when every victory leaves a scar.