In the luxurious world of high-end hospitality, Seo Yian prides himself on his professionalism as a butler at a top-tier hotel famous for its discretion and its unique policy of hiring only Beta staff. His most important charge is Yoo Jekwon, a handsome and commanding Alpha CEO who resides in the hotel's VIP suite. While Yian maintains a composed exterior, he harbors a desperate, unrequited love for Jekwon, forced to watch the Alpha bring home various partners, including a long-term Omega lover.
Everything changes when Jekwon's relationship crumbles due to his partner's infidelity. Seeing the Alpha vulnerable and alone, Yian decides to cast aside his reservations. No longer content to be just a servant in the background, he propositions Jekwon with an offer of "special services" to help him forget his pain. What begins as a physical arrangement born of opportunity quickly spirals into something far more intense, blurring the lines between master and servant.
However, their illicit affair faces a biological ticking clock. As Yian spends more time immersed in Jekwon's potent Alpha pheromones, his own body begins to undergo an unexpected and dangerous change. With the threat of presenting as an Omega—which would cost him his job—and the uncertainty of Jekwon's true feelings, Yian must navigate a treacherous path of desire, secrets, and identity in this gripping Omegaverse drama.