A spunky female weightlifter and free-spirited male swimmer meet on campus, only to find out their pasts may be intertwined.

When Hye-Jung was young, her life was difficult. She was good at fighting, but also studied well. Overcoming her tough situation, she is now a doctor.

Former members of a girl band pursue romance with various suitors while coming to terms with their waning celebrity statuses and ever-evolving relationships with one another.