Ten years ago, a staged car crash claimed the lives of House Vespella heiress Cisnea parents and left her "blind." A decade later, on the eve of her graduation and inheritance, her uncle Ryan attempts to strong‑arm her hundred‑million‑dollar stake for a mere million. Trapped by Ryan’s coercion, Cisnea feigns acceptance of a proposal from Louis, scion of the Vance conglomerate, using his backing as a counterweight.
Yet always at her side is her personal bodyguard, Ethan—once the nocturnal assassin known as the "Shadow Wolf." Bound by the iron code of his profession, he wears a black titanium collar, never daring to cross the line no matter how Cisnea tests or provokes him, debasing himself as "just a dog."
After repeated disappointments, Cisnea grows utterly indifferent to Ethan. She coldly steers toward her grand wedding with Louis. Faced with the impending ceremony and her chilling command that "from tomorrow on, you need not follow me," Ethan shatters in the pitch‑dark room. Confronted with the ultimate terror of losing his lady forever, he finally sees his own heart—he is madly, fiercely in love with Cisnea! He reaches for the titanium collar at his throat, his gaze shifting from groveling submission to blazing obsession, and vows to storm the wedding and seize her by force.
