Synopsis: While You Were Letting Your Guard Down

Ha-min is a beta who avoids alphas due to the scars of a previous relationship. After an impulsive one-night stand with dominant alpha Sung-han, he became an omega. On the advice of his doctor, he searches for a dominant alpha to partner with on a regular basis, and when Sung-han joins the same company as him, he proposes the idea to be s** partners without batting an eye. But then the new team leader is... Jin-tae, Ha-min's ex-boyfriend who once ditched him for being a beta?! Ha-min's life is about to take a turn for the worse!