Soyu disappeared after her father’s passing, leaving behind her past—and carrying a secret named Yeoul. Five years later, fate forces her path to cross with Jinook, her childhood best friend turned famous movie director. One glance at Yeoul, and Jinook knows immediately: That’s my son. Soyu builds a wall, but Jinook is charging straight through it. Can an overly emotional, wear-his-heart-on-his-sleeve director (MBTI: pure F) win over the ultra-logical, hyper-guarded woman (MBTI: pure T) and earn the right to be called "Dad"?