Seoha has spent two years working as a secretary for the cold Dohyeon, the director of a conglomerate, while harboring a secret, unrequited love for him. But when a canceled flight strands them together for one unexpected night, everything changes. What begins as a secret fling quickly spirals into something far more complicated when Dohyeon’s powerful family starts arranging his marriage to another woman, and Seoha discovers that she is pregnant. Will Seoha be able to win Dohyeon’s heart, or will she lose him to another woman forever?