In the bustling city of Incheon, two debt collectors, Doo-Seok and Jong-bae, find themselves in an unexpected situation.

While collecting a debt from a struggling immigrant, they take custody of her young daughter, Seung-Yi.

As the two men navigate the complexities of raising a child, a heartwarming bond forms between them. Despite their tough exteriors, Doo-Seok and Jong-bae learn to provide love, care, and guidance to the young girl, transforming their lives in the process.