One Spring Night

Lee Jeong In feels stuck in a long relationship that no longer brings her happiness. One morning, after drinking with a friend, she stops by a pharmacy run by Yoo Ji Ho. She is flustered, short on time, and realizes she has forgotten her wallet. Ji Ho quietly helps her, and this small moment leaves an impression on both of them.

Jeong In works as a librarian and has been dating Kwon Gi Seok, a man with strong family background and a stable career. Even so, she begins to question what she truly wants. Ji Ho is a pharmacist and a single father who lives a steady but modest life. Their paths cross again, and the simple interaction from that morning grows into a deeper pull.

As Jeong In and Ji Ho grow closer, they try to navigate their feelings while dealing with pressure from family and society. Their connection challenges the expectations around them and forces each of them to decide what kind of life they want to pursue.