One Spring Night is a South Korean drama series that follows the story of Lee Jung-in, a pharmacist in her thirties who is in a long-term relationship with a banker named Kwon Ki-seok. Despite their stable relationship, Jung-in begins to question her feelings when she meets a single father and librarian named Yoo Ji-ho.
As Jung-in and Ji-ho grow closer, they both must navigate the complexities of their own lives and relationships. Jung-in struggles with her feelings for Ji-ho and the expectations of her family and society, while Ji-ho grapples with his past and his responsibilities as a father.
One Spring Night explores themes of love, family, and societal expectations as Jung-in and Ji-ho confront their own desires and the obstacles in their path. Will they be able to find happiness together, or will the pressures of their lives tear them apart?