Ximena, a female urolosist, blackmails a patient—the aloof CEO Ayden—to raise research funds. Forced into a contract marriage, the two engage in a battle of wits and laughter after moving in together. Ximena discovers his "impotence" is due to chronic poisoning and dedicates herself to its treatment. Though Ayden only wants to use her at first, he gradually falls for her. Ultimately, their fake relationship becomes real, resulting in a sweet and unexpected romance.
