When Jo Hana discovers her ex-boyfriend Park Siwoo by the Han River in Seoul, she is shocked to see him drowning in despair and alcohol after a devastating fight with his boss that left his life in ruins. Recognizing his desperation, Hana wordlessly invites him home, pulling him back from the brink of self-destruction. Though they don’t delve deeply into the past, Hana promises to help him rebuild his life—but only if he follows the conditions she sets forth for repaying his debt to her, marking the beginning of a new journey for them both.