"Thirty-Nine" is a South Korean television series that aired in 2021. The drama revolves around the lives of three close friends in their thirties, exploring themes of love, friendship, and the challenges of adulthood. The series highlights their personal struggles and the emotional bonds that tie them together as they navigate life's ups and downs. The main characters, played by Son Ye-jin, Jeon Mi-do, and Kim Ji-hyun, face various life events that test their relationships and individual growth. The show combines heartfelt moments with humor, making it relatable to viewers experiencing similar life transitions.