On her wedding day, Saskia catches her fiancé Maxim with her best friend, Delphine. They drug her with Lethe Draught to erase her memories and discard the fallen Farkas heiress. Saskia secretly drinks a protective potion and pretends to remember nothing, allowing Maxim to hand her to his nameless brother, Emeric, as a replacement bride. Shunned by the family, Emeric is a devoted vampire who has loved her for three years—and the hidden heir to Karovia's throne. As Saskia uses the false marriage to expose the conspiracy against her, Emeric shields her from assassins, cursed wraiths, blood hunts, and Delphine's schemes. Their deception becomes genuine love, sealed by a Blood Vow, while Maxim tries to reclaim the woman he treated as property. When Saskia reveals that her memory never vanished, the betrayal erupts before the vampire court. Maxim and Delphine are arrested, and Emeric's true identity changes everything. At last, he asks Saskia to marry him freely, without lies or coercion.
