Seo Yuna, a team leader at an advertising agency and a dominant omega, has been living a controlled life, disguising herself as a 'beta' by taking harsh suppressants to protect her career. One day, a new employee named Kwon Lee-hyun (a supreme alpha) joins the team. Yuna senses his overwhelming pheromones and the instinctual aura of a predator, keeping her on edge. Lee-hyun begins to approach her, as if trying to uncover the true scent hidden beneath her suppressants.