In a floating dystopia where magic is code and power is currency, a scrappy mechanic’s rusted wrench might just shatter an empire. Lyra Veyne survives in Eden’s neon-drenched slums by fixing broken machines and smuggling illegal magi-cores. But when her sister contracts a fatal energy plague—a "tax" levied by Eden’s ruling mage families—she does the unthinkable: awakens a forbidden AI named Lilith, whose voice burns through her mechanical arm like stardust. Now Lyra can transmute scrap metal into spellcraft, a power that marks her for death… or revolution. Enter Kael Voss: heir to the Frost Dynasty, whose glacial touch freezes hearts literal and metaphorical. Sent to eliminate the gutter-born threat, he discovers a devastating truth—her mechanized defiance thaws him. For the first time, his lethal ice recoils from warm skin. For the first time, he hesitates. Bound by a twisted tournament’s "master-servant" pact, Lyra and Kael forge a reluctant alliance. She needs his aristocratic access to Eden’s medical vaults; he craves her ability to destabilize his family’s energy monopoly. But as Lilith’s whispers reveal magic’s parasitic truth—a secret that could drown Eden in the earth’s vengeance—their electric rivalry ignites something perilous: a connection that defies code, class, and the cold calculus of survival.