Byun Hyuk (Choi Si-Won) is a son from a wealthy family who runs a large company. He lives a happy life without any specific goals. He is confident around women and he is also naive, with a warm heart. Byun Hyuk begins to live in a studio in a poor area. He hides his background.

Baek Joon (Kang So-Ra) lives in the same area. She works part-time jobs to make ends meet. Baek Joon graduated from a good university, but she was unable to land a job at a company and begin taking part-time jobs. She is positive and full of justice, but her life changes when Byun Hyuk appears.