Noh Ji-wook (Ji Chang-wook) became a prosecutor to fulfill his father's dream. He has both good looks and talent, but later changed his career to become a lawyer. Eun Bong-hee (Nam Ji-hyun) is a judicial trainee who was a national representative of Taekwondo. Due to a mysterious incident, Eun Bong-hee unexpectedly became a suspect. In order to find the real murderer, Noh Ji-wook, who is now a lawyer, and she, who is a trainee prosecutor, formed a "strange partnership".