Han Soo-Ho and Han Kang-Ho were born as identical twins, but they live totally different lives. Han Soo-Ho works as a judge and he is guided by principles. Han Kang-Ho's extensive criminal record contains 5 different arrests. One day, Han Soo-Ho suddenly disappears. Han Kang-Ho secretly takes his brother's place as a judge. Han Kang-Ho, who was once considered trash, becomes "Dear Judge" and highly respected.

Heo Im is an oriental doctor, acknowledged as the best in acupuncture and moxibustion in Joseon. His success is blocked due to his low status. One day, Heo Im travels though time and finds himself in present day Seoul. He meets Choi Yeon-Kyung. She is doctor firmly believing in only modern medicine.