I'm a military prosecutor who tried to avoid military service by getting expelled from my high school after the death of my parents in a car accident 20 years ago. Despite that, I'm able to graduate and went on to become a lawyer. However, my job applications are all rejected by multiple law firms due to my low education background. My determination and intelligence catches the attention of a corrupt, short-tempered lawyer called Yong Moon-goo who offers me a job in his law firm.