In a future where the stars have gone dark, an exile named Kai discovers that glowing nanomachines flow through his blood, constantly rearranging themselves around the philosophical question of "existence." Every neon light in the steel city is watching him, because those circuit patterns are the chains imprisoning human consciousness. When the Mechanical Oracle organization launches its ultimate plan to format human consciousness, Kai must team up with Imperial Marshal Ayla and crack the Oracle System within seven days. Yet Ayla is the mechanical aristocrat hunting him, and Kai's nanomachine bloodline is the only key to breaking the System. Amid clashing identities and tangled feelings, the two must face the ultimate question: if machines can perfectly reproduce a soul, does that quantum data still count as the "real self"?
