When Su Mu, a mild-mannered male vocalist, is teamed up with the assertive President Ning Ye of a major conglomerate, their lives are endangered by the introduction of a pheromone marker. As an added complication, Su Mu's ex-partner, who has transitioned from struggling actor to acclaimed award recipient after his return from Germany, vies for his attention alongside Ning Ye's overpowering charm. Will Su Mu get stuck in between the strong affections of these two contrasting men?