After rejecting 99 blind dates, billionaire heiress Sabrina is cut off by her grandfather and forced to marry into the Blackwood family. To break the arrangement, she disguises herself as a tacky country girl. But beside Julian Nash—the icy eldest heir—a stolen heirloom around a rival's neck triggers a buried truth: she is Evelyn Hart, the sole survivor of a family wiped out a decade ago. Forced into an engagement with Julian, Sabrina stays at the Nash estate as a lowly secretary. Secretly, she is "Nova"—the legendary undefeated racer—sworn to avenge her parents. She strips off her disguise to destroy a fake heiress, reclaims her stolen legacy, and exposes every scheme against her. Meanwhile, Julian—secretly "Rook," the only racer to tie with Nova—peels back her layers: tacky duckling, racing god, and vengeful heiress. Together, they uncover the horrific truth: her parents' downfall was orchestrated by the illegitimate son Ryan and greedy patriarch Gerald Locke. At a high-society gala, Sabrina reveals her true identity before the elite, presenting evidence that sends her enemies to prison. With her debt paid, she steps into a new life with Julian amid roaring engines.