["Must marry or die within a year."] Due to his family's blind belief in a prophecy, cold-blooded prosecutor Woo-jae is forced to go on a blind date with Yeon-su, an actor from a failed idol group. However, they leave each other with the worst possible impression, and the matchmaking falls apart. Months later, a massive prostitution scandal shakes South Korea, and Woo-jae finds himself facing Yeon-su as the prosecutor in charge of her case as a suspect. Yet, somehow, this woman seems to have been framed?! An fated contract marriage between an ultra-logical 'T' man and an ultra-emotional 'F' woman. Will these two truly be able to find their romantic destiny?!