"My Only One" is a South Korean television drama that aired in 2018. The story revolves around the life of a woman named Kim Mi-sook, who faces numerous challenges after discovering that her father, Kim Do-hyun, is a former convict. As she navigates her complicated family dynamics, she also finds love with Seo Eun-ho, a man who supports her through her struggles. The series explores themes of love, redemption, and the impact of past choices on present lives. It highlights the importance of family bonds and the pursuit of happiness despite adversity, making it a relatable and emotional watch for viewers.