Oh Do Hwan

He's the same age as Jung but is a senior prosecutor, an elite who passed the bar exam at the age of 22. He's meticulous and calculative. Neat and calm, he never reveals his true intentions and is Jung's greatest nemesis. The factory run by his father went bankrupt in an instant due to a conglomerate's scheme. After his family was shattered to ruins, he lives in pursuit of money and power.