Serena, a human-werewolf hybrid, became the nominal stepsister of Roan—heir to the pureblood Vanderbilt werewolf clan—after her mother married into the family. For five years, she secretly served as the antidote to Roan’s "moon madness" episodes, enduring his possessiveness and humiliation. When Roan became engaged to Eliza, a councilman’s daughter, for the sake of the family, a heartbroken Serena fled to London; there, she found a new life under the protection of Robert of the Carter family, utilizing her exceptional skills as an appraiser. Roan only realized Serena was his fated mate after suffering a backlash from their blood bond, prompting him to pursue her to London, refusing to let go. Driven by jealous spite, Eliza drugged Serena in an attempt to ruin her, but Roan rescued her just in time; on the night of the full moon, the two acknowledged their fated bond. The Vanderbilt family pressured Roan to execute Serena to preserve their honor, but Robert arrived at the critical moment to publicly expose Eliza as an imposter—a maid’s daughter who had swapped places with the real heiress. With the truth revealed, Roan renounced his inheritance, severed ties with his family, and left with Serena. Embracing passionately under the moonlight, they finally broke free from all shackles, stepping toward a new, free life together as fated mates.
