A drama about the realism in the relationship between doctors and patients and the social prejudice of educational background and origin. Yoo Hye Jung was a tough bully in school with a prickly personality and always goes wayward. She had many scars from her childhood and through self-preservation, Hye Jung keeps her heart shut away from other people. However, she changes after meeting her mentor Hong Ji Hong who plays a key role in transforming her life from a helpless gangster to a compassionate doctor.