In a world where Alphas and Omegas make up less than 1% of the population, estrus active Omegas are even more rare.“Doha, you’re an omega! You may not know who is an Alpha, but your body will”.Without an Alpha to help calm his estrus, Baek Doha relies solely on a discreet hook up service called Private Call. Yoon JiHwan, formally a call boy, now a popular fashion model, is contacted by his former boss to fill in for sick employee Sumin. The job in question?! “A special VIP regular of the service, who calls once every month without issue. Plus, he is just your type.” “Wow, he seems like a real beauty, but what is this sweet scent emanating from him, some kind of perfume?” JiHwan, having never been with an omega before, follows him into the hotel room.“What is this? He.. is knotting me, there’s no mistaking it, he is an alpha!!”Did Doha get more than he bargained for this time round?