
To raise the money for her sister Mia's surgery, the human girl Nora becomes a moon-bed girl who soothes werewolves' moon fever, spending a night with Lucian, the top Alpha and richest man in the city — only to find herself pregnant with twins. The moon-lotus mark on her body is exactly the key to breaking the Blackwood family's curse of infertility. Lucian's mother, eager to bring the two together, mistakes the babies for someone else's and nearly forces Nora into an abortion. Lucian stops the surgery just in time, confirms paternity, and signs a one-year secret marriage contract with Nora, agreeing to divorce once she gives birth. After the wedding, feelings slowly grow between them — yet Mia, coveting her brother-in-law and his fortune, keeps seducing him, drugging him, and splurging on his black card. At last, Nora stops indulging her sister: she hands Mia over to the inspectorate and cuts ties with her. To repay the massive fraudulent spending, Nora takes a high-paying job, only to be imprisoned by her senior Ryan and sold onto the underground werewolf auction block. Lucian, transformed into the Wolf King, saves her and kills Ryan — but the two clash again over the term of their contract. It takes his mother's words to wake him: Lucian finally admits he has loved Nora all along and tears up the contract before her eyes. Nora confesses her love in return, and at the Moon Goddess ceremony she willingly accepts the permanent mate mark, becoming the pack's one and only Luna, guarding their unborn twins together with Lucian.