Soyu ends up having a child, 'Yeoul', after a reckless one-night stand. Having disappeared after her father's death, she fatefully reunites five years later with Jinwook, her childhood friend and a famous film director. The moment he sees Yeoul, Jinwook intuits that he is his son. To break through Soyu's cold, guarded heart and be recognized as a real father, he begins an all-in pursuit with his life on the line. “Is the dad... me?” “Yes. It's you.” A struggle by a deeply emotional (Type F) man trying to win the heart of a strictly logical (Type T) woman to become a father.