Set in the 1960's and 1970's. Soo-In is a smart student who has never missed ranking at the top of her class. Due to her poor family situation, she begins to work at a factory instead of going to college. Nevertheless, she pursues her dream.

Jeon Se-mi (Jang Shin-young) was once a pure and innocent girl. But that all changes when she is betrayed by her lover, loses her family, and raped. Her traumatic past pushes her on a path of vengeance against the people who wronged her and made her life into shambles.