Known as the "Empire's Endless Dream," First Prince Anubis possesses peerless beauty, yet he is rumored to be a relentless libertine who takes no woman seriously—and none can ever stay by his side until morning. Deliberately acting reckless to push himself away from the throne, he harbors a dark secret hidden beneath the night that no one must ever discover. The one who saves Anubis from imminent peril is Lady Mireille, the daughter of an earl. "If you want your secret kept, marry me." With his secret exposed and forced into an engagement, Anubis enters a contract where both seek to use one another: Mireille fighting to alter a future of ruin, and Anubis fighting to protect his fatal truth. Yet oddly enough, it is only in Mireille’s presence that the prince’s dangerous aura calms, and step by step, his obsession with her begins to run deep. A noble lady intent on taming him, and a prince yearning to be tamed. Amidst a royal court swirling with curses and conspiracy, a twisted contractual romance unfolds.